Thompson Builders Corporation
Report verdict
Licensed & active (expires 2027-08-31) · No board discipline flag found in covered sources · 46 permits on file
88/100 HomeProFax Score — public-record factors only, not a rating of workmanship. How the score works Full report
The state board is the authority. A flag is a prompt to read the board record, not a verdict. Verify license status with the issuing board before you hire. See methodology and disclaimer & corrections.
What this report checks
Score breakdown
| Factor | Points | Why |
|---|---|---|
| License status | 35/35 | Active license on file with a state board |
| Discipline & legal flags | 20/20 | No disciplinary flag on board record |
| Permit history | 20/20 | 46 permits on file |
| Reviews (BBB + HomeProFax) | 13/25 | No BBB rating on file and no approved HomeProFax reviews yet (neutral). External ratings are linked below, not stored |
A simple, transparent sum of public-record factors. How the score works. Not a rating of workmanship.
Source data as of: Report rebuilt from source files on 2026-10-19 · CSLB bond/workers' comp as of 2026-10-14 · most recent permit on file: 2026-09-29.
What we checked
| License | Checked | CA Corporation #626859 · active |
| Bond | Checked | $25,000 with WESTERN SURETY COMPANY · as of 2026-10-14 |
| Workers' comp | Checked | Workers' Compensation Insurance (NATIONAL UNION FIRE INSURANCE COMPANY OF PITTSBURGH, PA) · as of 2026-10-14 |
| Years licensed | Checked | Licensed since 1991 |
| Business registration | Not available in CA | State business registry not loaded yet |
| Permits | Checked | 46 permits on record |
| Discipline | Checked | none on record |
| OSHA | Checked | 2 OSHA inspection record(s) from the last 5 years matched by business name and street address (U.S. DOL) |
| Reviews & outside links | Not checked yet | No review lookup run yet |
| Contractor-provided | Not checked yet | Nothing provided by the contractor yet |
Public records as of their source dates. Board status is shown as reported by the board. Not a guarantee. Ask the contractor for their verified HomeProFax report.
Licenses
Licensed since 1991 (earliest original issue date on these state license records; not a business start date)
| License # | Type | Status | Issued | Expires | Source |
|---|---|---|---|---|---|
| CA 626859 | Corporation (A| B| C17) Workers' comp: Workers' Compensation Insurance (NATIONAL UNION FIRE INSURANCE COMPANY OF PITTSBURGH, PA); Contractor bond: $25000 (WESTERN SURETY COMPANY) | clear | 1991-08-28 | 2027-08-31 | State board |
Bond & workers' comp
| Contractor bond | $25,000 · WESTERN SURETY COMPANY · effective 2023-01-01 |
|---|---|
| Workers' comp | Workers' Compensation Insurance · NATIONAL UNION FIRE INSURANCE COMPANY OF PITTSBURGH, PA · effective 2025-04-01 · expires 2027-04-01 |
Source: CSLB Public Data Portal (License Master), as of 2026-10-14. Verify current bond and insurance with CSLB and the insurer before you hire.
Building permits
| Date | Permit | Type | Address | Value |
|---|---|---|---|---|
| 2026-09-29 | 202609298764 | otc alterations permit | 3250 19th Av | $1 |
| 2026-08-17 | 202606223659 | otc alterations permit | 3250 19th Av | $1 |
| 2026-05-20 | 202511200084 | additions alterations or repairs | 400 Bay St | $1 |
| 2026-04-15 | 202603067085 | otc alterations permit | 44 Treasure Island Rd | $1 |
| 2026-04-15 | 202603067084 | otc alterations permit | 44 Treasure Island Rd | $1 |
| 2025-03-28 | 202107235031 | new construction | 300 De Haro St | $72,000,000 |
| 2024-08-29 | 202405293239 | otc alterations permit | 3250 19th Av | $1 |
| 2024-03-29 | 202403067235 | otc alterations permit | 3250 19th Av | $25,000 |
| 2023-06-28 | 202209082129 | additions alterations or repairs | 3250 19th Av | $3,200,000 |
| 2023-06-14 | 202206106049 | additions alterations or repairs | 3250 19th Av | $600,000 |
| 2021-06-16 | 202012030172 | additions alterations or repairs | 350 09th Av | $700,000 |
| 2020-09-22 | 202008242473 | additions alterations or repairs | 950 Tennessee St | $1 |
| 2020-07-17 | 202006208951 | additions alterations or repairs | 950 Tennessee St | $1 |
| 2020-07-16 | 202006048153 | otc alterations permit | 950 Tennessee St | $3,000 |
| 2020-01-03 | M1180287 | otc alterations permit | 950 Tennessee St | — |
| 2019-12-02 | 201905140604 | additions alterations or repairs | 214 Clara St | $93,603 |
| 2019-12-02 | 201905140603 | additions alterations or repairs | 225 Shipley St | $51,056 |
| 2019-12-02 | 201905140601 | additions alterations or repairs | 360 05th St | $409,611 |
| 2019-07-31 | 201907267037 | otc alterations permit | 950 Tennessee St | $1 |
| 2018-09-24 | 201805027972 | grade or quarry or fill or excavate | 950 Tennessee St | $200,000 |
| 2018-09-24 | 201805027970 | additions alterations or repairs | 950 Tennessee St | $380,000 |
| 2018-08-01 | 201805027977 | additions alterations or repairs | 825 Minnesota St | $75,000 |
| 2018-08-01 | 201805027976 | additions alterations or repairs | 801 Minnesota St | $75,000 |
| 2018-06-08 | 201712015291 | new construction | 950 Tennessee St | $35,000,000 |
| 2016-12-30 | 201602129550 | new construction wood frame | 400 Bay St | $3,500,000 |
| 2016-06-09 | 201606039116 | otc alterations permit | 72 Townsend St | $1 |
| 2015-09-03 | 201508134138 | otc alterations permit | 72 Townsend St | $25,000 |
| 2014-03-31 | 201403312016 | otc alterations permit | 72 Townsend St | $50,000 |
| 2014-03-13 | 201403130623 | otc alterations permit | 66 Townsend St | $8,000 |
| 2014-01-23 | 201401236866 | otc alterations permit | 72 Townsend St | $36,000 |
| 2013-01-11 | 201206213101 | otc alterations permit | 1601 Lane St | $181,000 |
| 2011-02-28 | 201102150229 | otc alterations permit | 72 Townsend St | $1,800 |
| 2010-12-07 | 201012076217 | otc alterations permit | 72 Townsend St | $50,000 |
| 2010-11-23 | 201011235543 | otc alterations permit | 2695 19th Av | $1 |
| 2010-11-23 | 201011235545 | otc alterations permit | 2695 19th Av | $1 |
| 2010-08-27 | 201004291342 | otc alterations permit | 855 Sacramento St | $1 |
| 2010-08-06 | 201003057629 | additions alterations or repairs | 855 Sacramento St | $150,000 |
| 2010-03-29 | 201002166599 | otc alterations permit | 855 Sacramento St | $20,000 |
| 2008-07-01 | 200803217715 | additions alterations or repairs | 855 Sacramento St | $8,000,000 |
| 2008-06-03 | 200806033576 | otc alterations permit | 151 Montana St | $1 |
| 2008-02-28 | 200802285832 | otc alterations permit | 2695 19th Av | $8,500 |
| 2007-07-31 | 200707166845 | otc alterations permit | 151 Montana St | $10,000 |
| 2007-01-08 | 200606144048 | new construction wood frame | 546 Capitol Av | $96,000 |
| 2001-11-08 | 200111082737 | otc alterations permit | 869 Ellis St | $1 |
| 2001-11-08 | 200111082736 | otc alterations permit | 869 Ellis St | $1 |
| 2001-11-08 | 200111082724 | otc alterations permit | 869 Ellis St | $1 |
Source: DataSF (Building Permits + Building Permits Contacts)
Source: DataSF, City and County of San Francisco (Building Permits; Building Permits Contacts).
Discipline, complaints & legal
No board discipline or complaints found in our current sources. Federal court search (CourtListener): no state-consistent possible match in our last sample run, or not yet run for this contractor.
OSHA & wage-and-hour records
U.S. Department of Labor inspection and case records matched to this business by name and street address. Records from the last 5 years (since 2021-10-30) are shown. An inspection is not by itself a finding of wrongdoing, and these records do not affect the HomeProFax Score.
OSHA inspections (2)
| Opened | Closed | Job-site city | Result | Current penalty | Record |
|---|---|---|---|---|---|
| 2022-09-13 | 2023-01-24 | Eureka | Inspected, no violations cited | — | OSHA inspection 1622668.015 |
| 2022-05-13 | 2023-05-02 | Eureka | Citations issued: 2 other (contested) | $6,000 initial $10,120 | OSHA inspection 1596281.015 |
Current penalty is the amount after any settlement or adjustment. Open cases show no amounts because citations are not final.
Some inspections were done by the state's own OSHA program and are reported in the federal OSHA database.
1 older record(s) matched by name and address are not shown.
Source: U.S. Department of Labor: OSHA inspection and Wage and Hour Division enforcement data (dataportal.dol.gov), as of 2026-10-26. HomeProFax is not affiliated with or endorsed by the U.S. Department of Labor. Verify details on the official record.
Around the web
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Reviews
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Homeowner reviews on HomeProFax
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Thompson Builders Corporation · General Engineering Contractor
Novato, CA
License on file: CA ••••6859
Sources for this report
- CA license board
- DataSF (Building Permits + Building Permits Contacts)
- U.S. Department of Labor OSHA and Wage and Hour enforcement data (dataportal.dol.gov), as of 2026-10-26
See something wrong? Request a correction. This report is compiled from public records and is not a consumer report.
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