Professional and technical services — page 22 of 33
9,796 companies, type “Professional and technical services”.
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| Place | Company | City account number | Industry | License since |
|---|---|---|---|---|
| Seattle, WA | NORTHWEST PROPERTY TAX CONSULTANTS NW PROPERTY TAX CONSULTANTS INC | 0007980170710871 | Professional and technical services | Aug 1, 2016 |
| Seattle, WA | NORTHWEST PUBLIC AFFAIRS LLC | 0007905100703096 | Professional and technical services | Jan 1, 2016 |
| Seattle, WA | NORTHWEST RADIATION SERVICES INC | 0001921700194803 | Professional and technical services | Oct 25, 1996 |
| Seattle, WA | NORTHWEST RESOURCE LAW PLLC | 0008160670729622 | Professional and technical services | Nov 1, 2017 |
| Seattle, WA | NORTHWEST SOCIAL RESEARCH GROUP NORTHWEST SOCIAL RESEARCH GROUP LLC | 0007264900635654 | Professional and technical services | Mar 15, 2010 |
| Beaverton, OR | NORTHWEST SPORTS PHOTOGRAPHY INC | 0008355490750052 | Professional and technical services | Jan 1, 2000 |
| Seattle, WA | NORTHWEST TRANSIT SYSTEMS PARTNERS NORTHWEST TRANSIT SYSTEMS PARTNERS JOINT VENTURE | 0008733890789938 | Professional and technical services | Jan 31, 2016 |
| Bremerton, WA | NORTHWEST VERNACULAR INC | 0008075510720805 | Professional and technical services | May 3, 2017 |
| Seattle, WA | NORTHWEST WORKPLACE LAW PLLC | 0007582640669406 | Professional and technical services | Feb 23, 2013 |
| Woodinville, WA | NORTON CORROSION LIMITED NORTON CORROSION LIMITED LLC | 0007924990705154 | Professional and technical services | Jul 30, 2014 |
| Seattle, WA | NORWEST GRAPHICS LLC | 0007434620653783 | Professional and technical services | Jan 1, 2012 |
| Seattle, WA | NOSSAMAN LLP | 0005903480597409 | Professional and technical services | Aug 1, 2006 |
| Seattle, WA | NOT ANOTHER PADLOCK LLC | 0008897360807331 | Professional and technical services | Jun 1, 2025 |
| Spokane, WA | NOT APPLICABLE BLACK CROWS CONSULTING LLC | 0008699090786231 | Professional and technical services | Feb 15, 2023 |
| Seattle, WA | NOT APPLICABLE LAW OFFICES OF CHRISTOPHER L YOUNG PLLC | 0008518660767319 | Professional and technical services | Feb 1, 2021 |
| Seattle, WA | NOTARYHUB.COM EVERYTHING LEGAL LLC | 0008782690795109 | Professional and technical services | Jun 10, 2022 |
| Seattle, WA | NOTHERWORLD PROJECTS NOTHERWORLD PROJECTS LLC | 0008892880806811 | Professional and technical services | Aug 15, 2023 |
| Lacey, WA | NOTHLINK LOGISTICS NORTHLINK LOGISTICS LLC | 0008887420806190 | Professional and technical services | Jan 8, 2026 |
| Seattle, WA | NOURIGINALITY LLC | 0008875610804884 | Professional and technical services | Oct 27, 2025 |
| Seattle, WA | NOVA INFORMATION SYSTEMS INC ELAVON INC | 0007009660608371 | Professional and technical services | Jul 1, 2007 |
| Seattle, WA | NOVA MEDICAL EXPERTS LLC | 0008105500723950 | Professional and technical services | Aug 1, 2017 |
| Seattle, WA | NOVABY LTD SPC NOVABY LTD | 0008203160734164 | Professional and technical services | Feb 6, 2018 |
| Renton, WA | NOVARE SOLUTIONS GROUP NOVARE SOLUTIONS GROUP LLC | 0007294260638786 | Professional and technical services | May 13, 2010 |
| Seattle, WA | NOVIANT TECHNOLOGIES INC | 0008771760793950 | Professional and technical services | Jul 3, 2024 |
| Seattle, WA | NOVO NORDISK RESEARCH & DEVELOPMENT US NOVO NORDISK RESEARCH CENTER SEATTLE INC | 0008148260728339 | Professional and technical services | Oct 1, 2017 |
| Bellevue, WA | NOVOGRADAC & COMPANY LLP | 0008789790795866 | Professional and technical services | Sep 18, 2024 |
| Salt Lake City, UT | NOW CFO LLC | 0008899640807571 | Professional and technical services | Jun 1, 2025 |
| Salt Lake City, UT | NOW CFO SEA NOW CFO SEATTLE LLC | 0008871990804513 | Professional and technical services | Jan 1, 2021 |
| Seattle, WA | NOYAM LLC | 0008953020813156 | Professional and technical services | Sep 13, 2026 |
| Seattle, WA | NRC HEALTH NATIONAL RESEARCH CORP | 0007335450643190 | Professional and technical services | Oct 1, 2010 |
| Seattle, WA | NRF CONSULTING SERVICES, LLC NRF CONSULTING SERVICES LLC | 0008755230792205 | Professional and technical services | Feb 14, 2024 |
| Seattle, WA | NRG FIRE CONSULTING LLC | 0007231720632110 | Professional and technical services | Mar 5, 2009 |
| Seattle, WA | NSANSA LLC | 0007380780648084 | Professional and technical services | Feb 16, 2011 |
| Seattle, WA | NSE COMPOSITES NSE LLC | 0001909890193595 | Professional and technical services | Jun 1, 1995 |
| Seattle, WA | NTH DEGREE CPAS PLLC 3 PEAKS ACCOUNTING SERVICES PLLC | 0007253770634421 | Professional and technical services | Apr 9, 2008 |
| Plano, TX | NTT DATA AMERICAS INC | 0008739700790541 | Professional and technical services | Jan 1, 2024 |
| Plano, TX | NTT DATA SERVICES LLC | 0008739690790540 | Professional and technical services | Jan 1, 2024 |
| Burlington, MA | NUANCE COMMUNICATIONS INC | 0005984450605963 | Professional and technical services | May 1, 2007 |
| Fall City, WA | NUANCE INTERIOR DESIGN NUANCE INTERIOR DESIGN LLC | 0007692560680925 | Professional and technical services | Jan 1, 2014 |
| Seattle, WA | NUANCE LABS INC 7DOF INC | 0008771170813363 | Professional and technical services | Jun 1, 2026 |
| Seattle, WA | NULL UNIT NULL UNIT LLC | 0008160680729623 | Professional and technical services | Aug 31, 2017 |
| Seattle, WA | NUMERIC DESIGN ENGINEERING LLC | 0008539490769503 | Professional and technical services | Mar 20, 2019 |
| Seattle, WA | NUMURUS LLC | 0008071030720331 | Professional and technical services | Apr 7, 2017 |
| Seattle, WA | NURIA BALDELLO SOLE LLC | 0008893970806935 | Professional and technical services | Nov 26, 2025 |
| Valencia, CA | NUSANO INC | 0008635270779532 | Professional and technical services | Aug 8, 2022 |
| Seattle, WA | NUTHATCH SOFTWARE NUTHATCH SOFTWARE LLC | 0008774180794206 | Professional and technical services | Feb 28, 2023 |
| Seattle, WA | NUTRILABEL CONSULTING LLC | 0008883950805792 | Professional and technical services | Dec 1, 2025 |
| Tacoma, WA | NUTTECH LLC | 0008639010779927 | Professional and technical services | Sep 25, 2022 |
| Seattle, WA | NUVEM INC | 0007319830641496 | Professional and technical services | Jan 1, 2010 |
| Spokane, WA | NUVODIA LLC | 0007434480653769 | Professional and technical services | Jan 1, 2011 |
| Lexington, KY | NV5 GEOSPATIAL INC | 0008179310731583 | Professional and technical services | Nov 22, 2017 |
| Hollywood, FL | NV5 GEOSPATIAL SOLUTIONS INC | 0008737440790308 | Professional and technical services | Apr 10, 2023 |
| Bothell, WA | NV5 INC | 0008508630766257 | Professional and technical services | Jan 1, 2021 |
| Seattle, WA | NVIDIA CORPORATION | 0008301500744424 | Professional and technical services | Oct 29, 2018 |
| Seattle, WA | NVL LABORATORIES INC | 0001786520181208 | Professional and technical services | Sep 1, 1995 |
| Minneapolis, MN | NVP ASSOCIATES NVP ASSOCIATES LLC | 0008708400787207 | Professional and technical services | Jan 1, 2023 |
| Covington, WA | NVRSKIPGAMEDAY LLC | 0008636250779630 | Professional and technical services | Aug 8, 2022 |
| Seattle, WA | NW ART INSTALLATION NW ART INSTALLATION LLC | 0008078300721101 | Professional and technical services | May 1, 2017 |
| Woodinville, WA | NW BLOOM NW BLOOM LLC | 0007451070655541 | Professional and technical services | Jan 12, 2006 |
| Snohomish, WA | NW BOILER INC | 0008536740769215 | Professional and technical services | May 3, 2021 |
| Seattle, WA | NW BUSINESS CONSULTING NW BUSINESS CONSULTING LLC | 0007120530620105 | Professional and technical services | Jan 1, 2008 |
| Seattle, WA | NW ECONOMICS NORTHWEST ECONOMICS LLC | 0007899470702496 | Professional and technical services | Jan 25, 2016 |
| Seattle, WA | NW HOME DESIGNERS NW HOME DESIGNERS LLC | 0008675060783683 | Professional and technical services | Jan 1, 2023 |
| Seattle, WA | NW JUSTICE CONSULTING NW JUSTICE CONSULTING LLC | 0007359720645821 | Professional and technical services | Jan 1, 2011 |
| Seattle, WA | NW ORCHID SOCIETY INC | 0000703980080206 | Professional and technical services | Jan 21, 1977 |
| Federal Way, WA | NW SAFETY CONSULTANTS NW SAFETY CONSULTANTS LLC | 0007901850702745 | Professional and technical services | Oct 20, 2015 |
| Seattle, WA | NW SIGNING AGENT LLC | 0008568590772537 | Professional and technical services | Aug 4, 2021 |
| Seattle, WA | NW STRATEGY AND PLANNING PLLC | 0008584770774259 | Professional and technical services | Jan 1, 2020 |
| Bothell, WA | NWACS NW AUGMENTATIVE COMM SOCIETY | 0001179470119174 | Professional and technical services | Jan 1, 1990 |
| Seattle, WA | NWB CONSULTING NONPROFIT AF LLC | 0008671180783279 | Professional and technical services | Jan 1, 2023 |
| Seattle, WA | NWRA NORTHWEST RESEARCH ASSOCIATES INC | 0008577420773473 | Professional and technical services | Jan 1, 2022 |
| Seattle, WA | NWSRINSIGHT LLC | 0008075380720792 | Professional and technical services | May 1, 2017 |
| Seattle, WA | NZ CONSULTING INC | 0007839480696263 | Professional and technical services | Jun 1, 2015 |
| Seattle, WA | O & L ENTERPRISES LLC | 0008606180776471 | Professional and technical services | May 1, 2021 |
| Seattle, WA | O HARA CORPORATION MARKETING DIVISION O'HARA CORP | 0005094500677865 | Professional and technical services | Jan 1, 2014 |
| Lakewood, WA | O&K ACCOUNTING O&K ACCOUNTING INC | 0008803890797411 | Professional and technical services | Jan 1, 2025 |
| Seattle, WA | O'BRIEN PROGRAM LEADERSHIP EUDAEMON LLC | 0008730830789621 | Professional and technical services | Jan 15, 2024 |
| Seattle, WA | O'CONNOR CONSULTING GROUP LLC OCONNOR CONSULTING GROUP LLC | 0008890470806534 | Professional and technical services | Jan 1, 2026 |
| Seattle, WA | O'MALLEY PHOTOGRAPHERS LLC OMALLEY PHOTOGRAPHERS LLC | 0007330280642632 | Professional and technical services | Jan 1, 2011 |
| Seattle, WA | O2 CREATIVE STUDIO INC | 0007799800692123 | Professional and technical services | Jan 1, 2013 |
| Seattle, WA | OAC SERVICES INC | 0000078120010879 | Professional and technical services | May 1, 1971 |
| Seattle, WA | OAK & FIR VENTURES LLC | 0008955960813458 | Professional and technical services | Sep 23, 2026 |
| Seattle, WA | OAKLEY CONSULTING LLC | 0008544600770031 | Professional and technical services | Jun 4, 2021 |
| Seattle, WA | OAKSMITH YACHTS OAKSMITH YACHTS LLC | 0008734790790034 | Professional and technical services | May 1, 2023 |
| Seattle, WA | OBJECT plus SPACE LTD | 0005596510564594 | Professional and technical services | Feb 20, 2003 |
| Seattle, WA | OBJEKTS LLC | 0005824310588845 | Professional and technical services | Jul 22, 2005 |
| Federal Way, WA | OBUNCO ENGINEERING INTERNATIONAL INC | 0007129850621064 | Professional and technical services | Nov 4, 2008 |
| Seattle, WA | OCEANWORKS OCEANWORKS LLC | 0005267450529241 | Professional and technical services | Apr 1, 1999 |
| Puyallup, WA | OCHOA ORIGINALS LLC | 0008773060794090 | Professional and technical services | Jul 18, 2024 |
| Seattle, WA | OCHRE OCHRE LLC | 0008518510767301 | Professional and technical services | Jul 10, 2020 |
| Seattle, WA | OCTANOVE LABS LLC | 0008456210760706 | Professional and technical services | Sep 16, 2019 |
| Seattle, WA | OCTOBER ADVISORS LLC | 0008737640790328 | Professional and technical services | Jan 24, 2024 |
| Seattle, WA | OCTYLCONSULTING R BUCKLEY LLC | 0008583390774111 | Professional and technical services | Jan 3, 2022 |
| Seattle, WA | ODAMA LAW PLLC | 0008187500732449 | Professional and technical services | Feb 1, 2018 |
| Seattle, WA | ODD DOG MEDIA CMEDIA PRODUCTIONS CORP | 0007840470696365 | Professional and technical services | Apr 1, 2015 |
| Seattle, WA | ODD RABBIT STUDIO INC | 0008704590786802 | Professional and technical services | Aug 15, 2023 |
| Burien, WA | ODD THINKING ODD THINKING LLC | 0008492280764526 | Professional and technical services | Sep 21, 2020 |
| Seattle, WA | ODEGAARD ENGINEERING LLC | 0008738950790459 | Professional and technical services | Jan 31, 2024 |
| Seattle, WA | OF ONE KIND OF ONE KIND LLC | 0008592050775011 | Professional and technical services | Jun 24, 2021 |
| Seattle, WA | OFELIA ANORVE LLC | 0008771040793873 | Professional and technical services | Jul 10, 2024 |
| Townsend, DE | OFF LEASH K9 TRAINING SEATTLE OLK9 SEATTLE LIMITED LIABILITY COMPANY | 0008495160764837 | Professional and technical services | Aug 1, 2020 |
| Seattle, WA | OFFICIAL CERTIFIED BUSINESS OFFICIAL CERTIFIED BUSINESS LLC | 0007737360685660 | Professional and technical services | Jan 1, 2014 |
| Seattle, WA | OFFSKREEN OFFSKREEN LLC | 0008724880788972 | Professional and technical services | Dec 1, 2023 |
| Seattle, WA | OFICENTRO HISPANO OFICENTRO HISPANO LLC | 0008508390766233 | Professional and technical services | Nov 15, 2019 |
| Kenmore, WA | OG DIRECTIONAL SIGNS SERVICE LLC | 0007784110690496 | Professional and technical services | Jan 1, 2015 |
| Seattle, WA | OG ENGINEERING PLLC | 0007854530697804 | Professional and technical services | Jul 7, 2015 |
| Bainbridge Island, WA | OGDEN & ASSOCIATES | 0001083150109246 | Professional and technical services | Jun 19, 1989 |
| Seattle, WA | OGDEN MURPHY WALLACE ATTYS OGDEN MURPHY WALLACE PLLC | 0001785960181152 | Professional and technical services | Jul 1, 1995 |
| Seattle, WA | OGGVOREP LIMITED LIABILITY COMPANY | 0008536020769141 | Professional and technical services | Apr 1, 2020 |
| Seattle, WA | OGLETREE DEAKINS NASH SMOAK & STEWART PC | 0007441190654496 | Professional and technical services | Dec 9, 2011 |
| Richmond, VA | OHAGAN MEYER PLLC | 0008722650788740 | Professional and technical services | Jul 1, 2023 |
| Seattle, WA | OHANA FIDUCIARY CORP | 0007009690608376 | Professional and technical services | Jun 1, 2007 |
| Seattle, WA | OHNYR PLLC | 0008127650726221 | Professional and technical services | Aug 6, 2017 |
| Spokane, WA | OIL ANALYSIS LAB INC | 0007063310614081 | Professional and technical services | Mar 1, 2008 |
| Seattle, WA | OINKBARK OINKBARK LLC | 0008630320779001 | Professional and technical services | Aug 8, 2022 |
| Seattle, WA | OKAMOTO STRATEGIES OKAMOTO STRATEGIES LLC | 0007933210706007 | Professional and technical services | Apr 1, 2016 |
| Seattle, WA | OKANO PICARD STUDIO PICARD OKANO WORKS LLC | 0008005560713502 | Professional and technical services | Oct 17, 2016 |
| Seattle, WA | OKASA ACADEMY HANNA STEPLEWSKA INTERNATIONAL LLC | 0008472690762442 | Professional and technical services | Mar 1, 2020 |
| Seattle, WA | OKAYBRO OKAYBRO LLC | 0008133360726811 | Professional and technical services | Oct 14, 2016 |
| Seattle, WA | OKEAN SOLUTIONS INC | 0007288290638163 | Professional and technical services | Mar 31, 2010 |
| Seattle, WA | OKEANOS LLC | 0007424950652704 | Professional and technical services | Sep 29, 2011 |
| Seattle, WA | OKERSON DESIGN LLC | 0008919270809616 | Professional and technical services | Apr 1, 2026 |
| Seattle, WA | OKRB GROUP LLC | 0008869450804250 | Professional and technical services | Aug 29, 2025 |
| Bellevue, WA | OKTA INC | 0008589240774720 | Professional and technical services | Mar 25, 2020 |
| Bellingham, WA | OKUMURA CONSULTING & CREATIVE LLC | 0008652480781348 | Professional and technical services | Jan 1, 2023 |
| Enumclaw, WA | OLD GROWTH SOLUTIONS LLC | 0008877360805085 | Professional and technical services | Nov 1, 2025 |
| Seattle, WA | OLDSGROUP OLDSGROUP LLC | 0008801720797149 | Professional and technical services | Jan 1, 2025 |
| Seattle, WA | OLIS INC. | 0007915300704151 | Professional and technical services | Jul 18, 2013 |
| Seattle, WA | OLIVE LAW NORTHWEST PLLC | 0008226220736574 | Professional and technical services | Feb 15, 2018 |
| Seattle, WA | OLIVER BOHLMAN PHOTOGRAPHY OLIVER BOHLMAN PHOTOGRAPHY LLC | 0008916220809294 | Professional and technical services | Apr 21, 2026 |
| Seattle, WA | OLIVER SPENCER ATTORNEY AT LAW PLLC | 0007092000617117 | Professional and technical services | Jul 1, 2008 |
| Seattle, WA | OLSON & OLSON OLSON & OLSON PLLC | 0005557080560324 | Professional and technical services | Aug 12, 2002 |
| Seattle, WA | OLSON CONSULTING OLSON HOLDINGS & CONSULTING INC | 0008308210745128 | Professional and technical services | Oct 1, 2018 |
| Seattle, WA | OLSON KUNDIG ARCHITECTS INC OLSON KUNDIG INC | 0000259220032259 | Professional and technical services | Sep 1, 1982 |
| Seattle, WA | OLSON LEGACY LAW FIRM PLLC | 0008675110783688 | Professional and technical services | Apr 1, 2023 |
| Olympia, WA | OLYMPIA VIRTUAL TOURS OLYMPIA VIRTUAL TOURS LLC | 0008561450771790 | Professional and technical services | Jan 31, 2021 |
| Seattle, WA | OLYMPIC ANALYTICS OLYMPIC ANALYTICS LTD | 0008157180729264 | Professional and technical services | Oct 8, 2017 |
| Seattle, WA | OLYMPIC DATA SOLUTIONS OLYMPIC DATA SOLUTIONS LLC | 0008822650799375 | Professional and technical services | Apr 1, 2025 |
| Seattle, WA | OLYMPIC ENVIRONMENTAL RESOURCES INC | 0005374940540850 | Professional and technical services | Mar 3, 2000 |
| Seattle, WA | OLYMPIC HILLS DRAFTING & DESIGN LLC | 0008685400784760 | Professional and technical services | May 2, 2023 |
| Spokane, WA | OLYMPIC PARKING SIGNS LLC | 0008885350805957 | Professional and technical services | Dec 23, 2025 |
| Seattle, WA | OLYMPIC RESEARCH AND STRATEGY OLYMPIC RESEARCH AND STRATEGY LLC | 0008827100799840 | Professional and technical services | Jan 1, 2025 |
| Seattle, WA | OLYMPIC SCIENTIFIC INC | 0000061750008800 | Professional and technical services | Jan 1, 1969 |
| Seattle, WA | OLYMPIC STUDIOS LLC | 0008310250745348 | Professional and technical services | Dec 1, 2018 |
| Fife, WA | OMEGA MORGAN OMEGA RIGGING MACHINERY MOVING INC | 0007942640706985 | Professional and technical services | May 2, 2016 |
| Cle Elum, WA | OMEGA SOLUTION OMEGA SOLUTION INC | 0008774530794243 | Professional and technical services | Jul 1, 2024 |
| Seattle, WA | OMEROS CORPORATION | 0005459760549926 | Professional and technical services | Jun 16, 1994 |
| Louisville, KY | OMG OUTSOURCE MANAGEMENT GROUP LLC | 0008825000799623 | Professional and technical services | Feb 1, 2025 |
| Mountain View, CA | OMNICELL INC | 0007153020623623 | Professional and technical services | Jan 1, 2009 |
| Seattle, WA | OMNIDIAN INC | 0008010010713986 | Professional and technical services | Sep 1, 2016 |
| Seattle, WA | OMNIFIK OMNIFIK LLC | 0007047080612362 | Professional and technical services | Jan 1, 2008 |
| Seattle, WA | ON DECK LAW PLLC | 0007752810687245 | Professional and technical services | Oct 1, 2014 |
| Seattle, WA | ON POINTE PARTNERS LLC CAGLE CONSULTING LLC | 0007664320677962 | Professional and technical services | Jan 11, 2013 |
| Lake Forest Park, WA | ON REASONABLE GROUND INC | 0005868840593607 | Professional and technical services | Jan 31, 2006 |
| Redmond, WA | ON SITE ENVIRONMENTAL INC | 0007055960613305 | Professional and technical services | Jan 1, 2001 |
| Federal Way, WA | ON SITE HEALTH & SAFETY IOSM INC | 0008776790794489 | Professional and technical services | Jan 1, 2017 |
| Seattle, WA | ON THE BRINK LLC | 0008581820773943 | Professional and technical services | Apr 28, 2021 |
| Seattle, WA | ON UP LLC | 0007882610700744 | Professional and technical services | Oct 5, 2015 |
| Bellevue, WA | ONACTUATE CONSULTING US INC | 0008836260800813 | Professional and technical services | May 1, 2025 |
| Seattle, WA | ONBELAY NOW ONBELAY NOW LLC | 0008583820774160 | Professional and technical services | Jan 3, 2022 |
| San Francisco, CA | ONBOARDIQ INC | 0008555580771167 | Professional and technical services | Mar 4, 2021 |
| Seattle, WA | ONCHAIN CONSULTING LLC | 0008034530716563 | Professional and technical services | Jan 27, 2017 |
| Federal Way, WA | ONCOLOGY RESEARCH CONSULTING LLC | 0008201640733996 | Professional and technical services | Apr 25, 2017 |
| Seattle, WA | ONCORESPONSE INC | 0007974660710302 | Professional and technical services | Mar 1, 2016 |
| Jacksonville, FL | ONDEFEND LLC | 0008952560813109 | Professional and technical services | Jun 24, 2026 |
| Seattle, WA | ONE & THREE 604618972 ONE & THREE LLC | 0008519780767433 | Professional and technical services | Jun 30, 2020 |
| Seattle, WA | ONE SMALL ORGANISM LLC | 0007155260623908 | Professional and technical services | Feb 15, 2009 |
| Seattle, WA | ONE TWO ONE VENTURES LLC | 0008564390772097 | Professional and technical services | Oct 1, 2021 |
| Seattle, WA | ONE WORLD CONSULTING GROUP LLC | 0008864460803715 | Professional and technical services | Aug 1, 2022 |
| Seattle, WA | ONEARCH COMMUNICATIONS ONEARCH COMMUNICATIONS LLC | 0005733660579190 | Professional and technical services | Jan 1, 2004 |
| Seattle, WA | ONEIL ENTERPRISES | 0008203670734218 | Professional and technical services | Feb 1, 2018 |
| Madison, WI | ONENECK IT SOLUTIONS LLC | 0007793610691487 | Professional and technical services | Jan 1, 2015 |
| Seattle, WA | ONEUP DNA ONEUP DNA LLC | 0008862570803520 | Professional and technical services | May 18, 2025 |
| Seattle, WA | ONEZA & ASSOCIATES | 0007293720638731 | Professional and technical services | Jul 27, 2010 |
| Seattle, WA | ONIT MANAGEMENT CONSULTING ONIT MANAGEMENT CONSULTING LLC | 0007570320668086 | Professional and technical services | Apr 15, 2013 |
| Seattle, WA | ONKEYPRESS LLC | 0008516480767084 | Professional and technical services | Jan 10, 2021 |
| Lake Oswego, OR | ONLINE BUSINESS SYSTEMS ONLINE ENTERPRISES INC | 0005636340568771 | Professional and technical services | Aug 1, 2003 |
| Seattle, WA | ONSPOT DIGITAL NETWORK LLC | 0005993920606994 | Professional and technical services | Apr 1, 2007 |
| Issaquah, WA | ONTARIO MEDIA GROUP | 0008800580797032 | Professional and technical services | Aug 1, 2024 |
| Kirkland, WA | ONTHEGRID LLC | 0007950300707786 | Professional and technical services | Oct 1, 2015 |
| Seattle, WA | ONTRADE INC | 0008799270796896 | Professional and technical services | Aug 9, 2024 |
| Seattle, WA | OOKLA LLC | 0008371050751691 | Professional and technical services | Jan 10, 2013 |
| Redford, MI | OORT CLOUD SOLUTIONS LLC | 0008947900812613 | Professional and technical services | May 28, 2025 |
| Seattle, WA | OPAL BEAUTY RITUALS CREATRIX STUDIOS LLC | 0008852790802512 | Professional and technical services | Jan 1, 2025 |
| Seattle, WA | OPALA PROJECT CONNECT INC | 0008575340773231 | Professional and technical services | Nov 1, 2021 |
| Seattle, WA | OPALE CO LLC | 0008955570813419 | Professional and technical services | Sep 25, 2026 |
| Seattle, WA | OPALSEED OPALSEED LLC | 0008873390804659 | Professional and technical services | Nov 1, 2025 |
| Seattle, WA | OPANGA NETWORKS INC | 0007525860663372 | Professional and technical services | May 1, 2012 |
| San Mateo, CA | OPEN TEXT CORP | 0005928210599982 | Professional and technical services | Jan 1, 2002 |
| Seattle, WA | OPENCAR OPENCAR INC | 0007459210656391 | Professional and technical services | Jan 1, 2012 |
| Seattle, WA | OPERATIVE LLC | 0008926800810391 | Professional and technical services | Mar 1, 2026 |
| Seattle, WA | OPHRYS LLC | 0005970430604481 | Professional and technical services | Jan 17, 2007 |
| Portland, OR | OPINIONATED LLC | 0008917270809413 | Professional and technical services | Jan 1, 2025 |
| Seattle, WA | OPPENHEIMER CONSULTING LLC | 0007530160663839 | Professional and technical services | Aug 1, 2012 |
| Seattle, WA | OPSERA LAW PLLC | 0008339410748375 | Professional and technical services | Mar 1, 2019 |
| Portland, OR | OPSIS ARCHITECTURE LLP | 0008534710768994 | Professional and technical services | Mar 1, 2021 |
| Freeland, WA | OPSON MEDICAL LEGAL INC | 0007609510672252 | Professional and technical services | Feb 1, 2013 |
| Seattle, WA | OPT MEDIA.COM ZEUS PROMOTIONS LLC | 0005560380560681 | Professional and technical services | Jul 1, 2002 |
| Seattle, WA | OPTANALYSIS LLC | 0007154480623793 | Professional and technical services | Jan 1, 2009 |
| Seattle, WA | OPTICYTE INC | 0007916460704274 | Professional and technical services | Jan 1, 2016 |
| Seattle, WA | OPTIMA PROJECT MANAGEMENT OPTIMA PROJECT MANAGEMENT SERVICES LLC | 0007866700699087 | Professional and technical services | Aug 11, 2015 |
| Fort Wayne, IN | OPTIMIZE IS LLC | 0008823190799430 | Professional and technical services | Mar 17, 2025 |
| Lynnwood, WA | OPTIMIZED INSPECTION SERVICES LLC | 0007780650690127 | Professional and technical services | Feb 1, 2015 |
| Seattle, WA | OPTIMUM BUSINESS CONSULTING LLC | 0008209420734811 | Professional and technical services | Feb 27, 2018 |
| Seattle, WA | OPTIMUM ENERGY CO WA LLC OPTIMUM ENERGY CO LLC | 0008700660786394 | Professional and technical services | Jun 22, 2023 |
| Seattle, WA | OPTIMUM ENERGY INTERNATIONAL INC | 0008214740735360 | Professional and technical services | Sep 25, 2017 |
| Seattle, WA | OPTINACIOUS LLC | 0008231530737123 | Professional and technical services | Mar 5, 2018 |
| Hanover, MD | OPTIV + CLEARSHARK OPTIV FEDERAL INC | 0008873700804690 | Professional and technical services | Jul 15, 2025 |
| Leawood, KS | OPTIV SECURITY INC | 0007870200699447 | Professional and technical services | Jul 1, 2015 |
| Tukwila, WA | ORA BIOMEDICAL INC | 0008633810779377 | Professional and technical services | Oct 1, 2022 |
| Seattle, WA | ORANGE ADVISING LLC | 0008795560796491 | Professional and technical services | Jul 23, 2021 |
| Reston, VA | ORANGE BUSINESS SERVICES US INC | 0007100860618052 | Professional and technical services | Jan 1, 2002 |
| Seattle, WA | ORANGE SKY LLC | 0008580250773785 | Professional and technical services | Jan 3, 2022 |
| Seattle, WA | ORANGEFORK BIO ORANGEFORK BIO LLC | 0008528540768355 | Professional and technical services | Oct 15, 2020 |
| Seattle, WA | ORC A DESIGN PLLC | 0008763100793032 | Professional and technical services | May 3, 2024 |
| Auburn, WA | ORCA FURNITURE SERVICE ORCA FURNITURE SERVICE INC | 0007599710671219 | Professional and technical services | Jan 1, 2013 |
| Everett, WA | ORCA LAND SURVEYING INC | 0008266210740744 | Professional and technical services | Feb 1, 2018 |
| Seattle, WA | ORCA PACIFIC MANUFACTURERS REPRESENTATIVES LLC | 0008161320729694 | Professional and technical services | Jan 1, 2016 |
| Mount Lake Terrace, WA | ORCHID LAW PLLC | 0008580260773786 | Professional and technical services | Dec 13, 2021 |
| Seattle, WA | ORE STUDIOS ORE STUDIOS LLC | 0007545790665489 | Professional and technical services | Feb 4, 2013 |
| Seattle, WA | OREGON RESEARCH INSTITUTE | 0007367620646641 | Professional and technical services | May 1, 2011 |
| Clyde Hill, WA | ORGANIZING MODE LLC | 0008835150800699 | Professional and technical services | Mar 9, 2025 |
| Seattle, WA | ORIENTUS ORIENTUS LLC | 0007015470608979 | Professional and technical services | Jul 31, 2007 |
| Chicago, IL | ORIGAMI RISK LLC | 0008804790797502 | Professional and technical services | Dec 1, 2017 |
| Seattle, WA | ORION ENGINEERS & ASSOCIATES ORION PARTNERS PLLC | 0007979840710835 | Professional and technical services | Aug 8, 2016 |
| Federal Way, WA | ORION ENVIRONMENTAL SERVICES OES, INC. | 0008717590788179 | Professional and technical services | Nov 1, 2023 |
| Seattle, WA | ORION MEDICINES, INC. ORION MEDICINES INC | 0008751860791861 | Professional and technical services | Sep 22, 2023 |
| Wheeling, WV | ORRICK HERRINGTON & SUTCLIFFE LLP | 0005315110534382 | Professional and technical services | Jul 1, 1999 |
| Seattle, WA | ORS IMPACT ORGANIZATIONAL RESEARCH SVCS INC | 0001755740178068 | Professional and technical services | Jan 1, 1995 |
| Seattle, WA | ORTHOS CONSULTING PLLC | 0008402600754997 | Professional and technical services | Jul 20, 2019 |
| Seattle, WA | OSBORN ARCHITECTS INCORPORATED PS | 0007860980698476 | Professional and technical services | Jul 1, 2015 |
| Bellevue, WA | OSBORN CONSULTING INC | 0007292910638645 | Professional and technical services | Jul 21, 2010 |
| Seattle, WA | OSBORN MACHLER PLLC | 0005247870526864 | Professional and technical services | Feb 1, 1999 |
| Calabasas, CA | OSI DIGITAL INC | 0005509970555319 | Professional and technical services | Oct 16, 2001 |
| San Leandro, CA | OSISOFT LLC | 0007888910701386 | Professional and technical services | Jan 1, 2012 |
| Seattle, WA | OSLO ELECTRIC COMPANY | 0000094180013019 | Professional and technical services | May 11, 1973 |
| Seattle, WA | OSLUND UDO LITTLE PLLC | 0005746010580478 | Professional and technical services | Oct 1, 2004 |
| Seattle, WA | OSO STRATEGIES OSO STRATEGIES LLC | 0008657860781911 | Professional and technical services | Jan 2, 2023 |
| Snohomish, WA | OSPREY CORROSION ENGINEERING LLC | 0008697830786095 | Professional and technical services | Jul 5, 2023 |
| Seattle, WA | OSPREY SOLUTIONS LLC | 0007363680646236 | Professional and technical services | Feb 21, 2011 |
| Seattle, WA | OSTARA CONSULTING GROUP INC | 0007218350630696 | Professional and technical services | Oct 1, 2009 |
| Redmond, WA | OTAK INC | 0005043730504856 | Professional and technical services | Mar 18, 1997 |
| Seattle, WA | OTB SOLUTIONS O T B SOLUTIONS GROUP LLC | 0005843990590930 | Professional and technical services | Jan 1, 2005 |
| Seattle, WA | OTERO LEGAL SERVICES PLLC | 0008707070787073 | Professional and technical services | Sep 1, 2023 |
| Decatur, AL | OTIS OTIS LLC | 0008343840748842 | Professional and technical services | Jan 1, 2018 |
| Seattle, WA | OTOROWSKI MORROW & GOLDEN PLLC | 0007682310679861 | Professional and technical services | Apr 1, 2014 |
| Seattle, WA | OTR FLORIDA LAW LAW FIRM PLLC | 0008741510790733 | Professional and technical services | Jul 1, 2023 |
| Mountlake Terrace, WA | OTT SAKAI & ASSOCIATES LLC | 0007929280705595 | Professional and technical services | Mar 1, 2016 |
| Seattle, WA | OTTAVIANO ASSOCIATES LLC | 0007661640677674 | Professional and technical services | Jan 1, 2014 |
| Seattle, WA | OTTO CAPITAL LLC | 0007181640626840 | Professional and technical services | Oct 21, 2008 |
| Seattle, WA | OTTO ROSENAU & ASSOCIATES INC | 0000050550007350 | Professional and technical services | Apr 1, 1966 |
| Seattle, WA | OTTO TRIP INC | 0008767380793493 | Professional and technical services | Jun 11, 2024 |
| Austin, TX | OUR PURPOSE CONSULTING AND COACHING OUR PURPOSE CONSULTING LLC | 0008860910803350 | Professional and technical services | Jun 1, 2020 |
| Seattle, WA | OUROBORUS CONSULTING INC | 0005393260542777 | Professional and technical services | Oct 30, 2000 |
| Renton, WA | OUT OF THE KITCHEN OPERATIONS LLC | 0008007680713749 | Professional and technical services | Nov 4, 2016 |
| Seattle, WA | OUTCALT & JOHNSON RETAIL STRATEGISTS LLC | 0005034800503881 | Professional and technical services | Jan 1, 1997 |
| Seattle, WA | OUTLIFT AI INC | 0008528630768364 | Professional and technical services | Mar 4, 2021 |
| Seattle, WA | OUTPACE BIO OUTPACE BIO INC | 0008510630766460 | Professional and technical services | Nov 16, 2020 |
| Seattle, WA | OUTRIGGER LABS OUTRIGGER LABS LLC | 0008740000790575 | Professional and technical services | Feb 7, 2024 |
| Seattle, WA | OUTRIGGER THERAPEUTICS OUTRIGGER THERAPEUTICS INC | 0008736750790236 | Professional and technical services | Jan 30, 2024 |
| Seattle, WA | OUTSIDE THINC OUTSIDE THINC LLC | 0008030280716119 | Professional and technical services | Jan 1, 2017 |
| Seattle, WA | OVENTURES LLC | 0008524650767933 | Professional and technical services | Jan 1, 2021 |
| Seattle, WA | OVERBOSE PROFESSIONAL SERVICES LLC | 0007693970681069 | Professional and technical services | Jan 6, 2014 |
| Seattle, WA | OVERDOSE DIGITAL OVERDOSE AMERICAS INC | 0008569200772604 | Professional and technical services | Jun 1, 2021 |
| Seattle, WA | OVERLAND AI INC | 0008721490788611 | Professional and technical services | Jan 1, 2023 |
| Seattle, WA | OVERLY & ASSOCIATES OVERLY & ASSOCIATES PLLC | 0005629550568059 | Professional and technical services | Jun 1, 2003 |
| Seattle, WA | OVERTHINK GROUP GRADLIME LLC | 0008607010776559 | Professional and technical services | Apr 21, 2022 |
| Seattle, WA | OVTH SERVICES LLC | 0008672560783418 | Professional and technical services | Mar 1, 2023 |
| Tukwila, WA | OWADA LAW, PC AMS LAW PC | 0007721450683987 | Professional and technical services | Jul 1, 2014 |
| Seattle, WA | OWEN & COMPANY PS HARVE ENTERPRISES INC | 0001823140184912 | Professional and technical services | Jan 1, 1996 |
| Seattle, WA | OWEN MEDIA INC | 0005104510511323 | Professional and technical services | Oct 27, 1997 |
| Seattle, WA | OWEN RICHARDS ARCHITECTS PLLC | 0005761830582150 | Professional and technical services | Jan 1, 2005 |
| Seattle, WA | OWEN VANDERBRUG INC | 0008340360748479 | Professional and technical services | Feb 10, 2017 |
| Seattle, WA | OWNER MOBILE INTELLIGENCE INC | 0005833860589850 | Professional and technical services | Apr 8, 2005 |
| Seattle, WA | OXFORD EDITING OXFORD EDITING LLC | 0008262970740404 | Professional and technical services | Jul 26, 2018 |
| Seattle, WA | OXFORD TECHNOLOGY VENTURES LLC | 0008908720808508 | Professional and technical services | Feb 25, 2026 |
| Seattle, WA | OYAM STUDIOS OYAM LLC | 0008813710798419 | Professional and technical services | Apr 1, 2024 |
| Seattle, WA | P K STREMIC LLC | 0005195990521301 | Professional and technical services | Jan 1, 1998 |
| Seattle, WA | P S I PROPULSION SYSTEMS PROPELLER SERVICES INC | 0001573750159512 | Professional and technical services | Apr 15, 1993 |
| Seattle, WA | P Y SUGAMURA JR & CO P S | 0005398530543343 | Professional and technical services | Jan 1, 1999 |
| Seattle, WA | P2S LP | 0008768960793660 | Professional and technical services | Mar 1, 2024 |
| Seattle, WA | P7 STRATEGIES LLC | 0008484410763691 | Professional and technical services | Sep 12, 2019 |
| Lebanon, OH | PA TEAM SOFTWARE CONSULTING INC | 0008635730779578 | Professional and technical services | Sep 1, 2022 |
| Seattle, WA | PAC EVAL CONSULT & TREATMENT SVC PAC EVAL CONSULT & TREATM SVC PLLC | 0007499080660567 | Professional and technical services | Jan 1, 2012 |
| Seattle, WA | PAC LANDSCAPES, LLC PAC LANDSCAPES LLC | 0008755350792219 | Professional and technical services | Aug 1, 2022 |
| Seattle, WA | PAC WEST FINANCIAL SERVICES LLC | 0008466140761739 | Professional and technical services | Feb 1, 2020 |
| Spokane, WA | PACANOM PACIFIC ANOMALY LLC | 0008919980809687 | Professional and technical services | May 2, 2026 |
| Kirkland, WA | PACE ENGINEERS INC | 0001696400172004 | Professional and technical services | Jul 31, 1994 |
| Seattle, WA | PACIFIC ALLINACE LAW PLLC PACIFIC ALLIANCE LAW PLLC | 0007695910681269 | Professional and technical services | Sep 1, 2013 |
| Bellevue, WA | PACIFIC BEACON DESIGN PACIFIC BEACON DESIGN LLC | 0008943420812127 | Professional and technical services | Jun 16, 2026 |
| Seattle, WA | PACIFIC BOTANICAL LABORATORIES LLC PACIFIC BOTANICAL LABORATORY LLC | 0008361640750708 | Professional and technical services | Jun 1, 2019 |
| Seattle, WA | PACIFIC CAPITAL ADVISORS LTD | 0001234600124820 | Professional and technical services | Sep 15, 1990 |
| Seattle, WA | PACIFIC CITY VETERINARY CARE ELLSBERRY & MARZULLO PLLC | 0008645200780586 | Professional and technical services | Sep 15, 2022 |
| Tacoma, WA | PACIFIC COAST AUTOS CHRYSANTHEMUM GEMSTONE INC | 0007662090677720 | Professional and technical services | Dec 1, 2013 |
| North Bend, WA | PACIFIC CREST ENVIRONMENTAL LLC | 0007224080631301 | Professional and technical services | Nov 16, 2009 |
| Seattle, WA | PACIFIC DATA VENTURES PACIFIC DATA VENTURES LLC | 0008914550809124 | Professional and technical services | Apr 1, 2024 |
| Wenatchee, WA | PACIFIC ENGINEERING & DESIGN PLLC | 0008334670747888 | Professional and technical services | Feb 12, 2019 |
| Seattle, WA | PACIFIC GROUNDWATER GROUP INC | 0000695330079257 | Professional and technical services | Oct 1, 1987 |
| Seattle, WA | PACIFIC HEARING CONSERVATION INC | 0005353890538597 | Professional and technical services | Feb 1, 2000 |
| Clinton, WA | PACIFIC HOME STAGE & DESIGN PACIFIC HOME STAGE & DESIGN INC | 0007084500616309 | Professional and technical services | Jun 10, 2008 |
Alphabetical order — this site ranks no one. Companies in the City of Seattle, Finance and Administrative Services file of October 2, 2026. Individuals are not on this site. How to read this.