Licensed Contractors in Seattle, California

Seattle has 28 licensed contractors registered with the California Contractors State License Board across 15 trade classifications. The most common specialties are Electrical Contractor (3), Flooring and Floor Covering Contractor (2), Machinery and Pumps (2). 18 contractors hold general contractor licenses (Class A or B).

All license data is sourced from the California Contractors State License Board (CSLB). Last data update: February 20, 2026.

Contractors by Classification

General Contractors

B: General Building Contractor (11) A: General Engineering Contractor (7)

Specialty Contractors

Show all 13 specialty classifications

Manson Construction Co Active
License #220319 A Seattle, CA Est. 1963
Cochran Electric Co Inc Active
License #265298 C-10 Seattle, CA Est. 1970
Scarsella Bros Inc Active
License #779354 A Seattle, CA Est. 2000
Refino Inc Active
License #787509 B Seattle, CA Est. 2000
Bnbuilders Inc Active
License #799131 A, B Seattle, CA Est. 2001
Roofcorp Of America Inc Active
License #803718 C-39 Seattle, CA Est. 2002
Manson / Connolly Jv Active
License #814282 A Seattle, CA Est. 2002
Alfi Construction Inc Active
License #819837 B Seattle, CA Est. 2003
O B Williams Company Active
License #834772 C-6 Seattle, CA Est. 2004
Costco Wholesale Corporation Active
License #858087 B, C-10 +2 more Seattle, CA Est. 2005
Grindline Skateparks Inc Active
License #910106 A Seattle, CA Est. 2008
Engineered Products A Pape' Company Active
License #910313 D21, D24 +2 more Seattle, CA Est. 2008
Veca Electric & Technologies Llc Active
License #933558 C-10 Seattle, CA Est. 2009
Dowbuilt Inc Active
License #948772 B Seattle, CA Est. 2010
I S C Contractors Inc Active
License #951891 B Seattle, CA Est. 2010
Concrete Restoration Inc Active
License #954553 D06 Seattle, CA Est. 2010
Krekow Jennings Inc Active
License #954834 B Seattle, CA Est. 2010
Ocean Park Mechanical Inc Active
License #986064 C-20, C-36 Seattle, CA Est. 2013
Mckinstry Essention Llc Active
License #992771 B Seattle, CA Est. 2014
Blue Water Graphic Signs Active
License #1014803 D42 Seattle, CA Est. 2016
Rubenstein'S Contract Carpet Llc Active
License #1026712 C-15 Seattle, CA Est. 2017
North American Terrazzo Inc Active
License #1034792 C-15 Seattle, CA Est. 2018
Triad Lagoon Valley Llc Active
License #1076911 A, B Seattle, CA Est. 2021
Acg Builds Inc Active
License #1112543 B Seattle, CA Est. 2023
Transco Northwest Inc Active
License #1132984 D21 Seattle, CA Est. 2025
Momentum Inc Suspended
License #881004 B Seattle, CA Est. 2006
Lumenomics Inc Suspended
License #981581 D52 Seattle, CA Est. 2013
Pacific Pile & Marine Lp Suspended
License #1049216 A Seattle, CA Est. 2019

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