T J Nelsen Marine Service Co
Sausalito, CA· about 5.2 mi from the city reference point
- Foundation repair
- Based in Marin County
CSLB License Master List: 549411 · source status “CLEAR” · checked October 16, 2026
Marin County, California
6 listed businesses serve Corte Madera, California, 1 based in Marin County and 1 within 10 miles. 1 of them has a checked CSLB record and dated service evidence; the others are listings from Overture Maps open data, each labelled with what is and isn't confirmed. Service areas and distances are estimates from city-level locations, not street addresses.
Sausalito, CA· about 5.2 mi from the city reference point
CSLB License Master List: 549411 · source status “CLEAR” · checked October 16, 2026
Pleasant Hill, CA· about 23.6 mi from the city reference point
No state credential record attached. Check local licensing requirements.
Place data: Overture Maps Foundation (Microsoft), CDLA-Permissive-2.0
Fairfield, CA· about 34.5 mi from the city reference point
No state credential record attached. Check local licensing requirements.
Place data: Overture Maps Foundation (Microsoft), CDLA-Permissive-2.0
Sunnyvale, CA· about 46 mi from the city reference point
No state credential record attached. Check local licensing requirements.
Place data: Overture Maps Foundation (Microsoft), CDLA-Permissive-2.0
Los Gatos, CA· about 57.1 mi from the city reference point
CSLB License Master List: 995494 · source status “CLEAR” · checked October 16, 2026
Place data: Overture Maps Foundation (Meta), CDLA-Permissive-2.0
San Jose, CA· about 58 mi from the city reference point
CSLB License Master List: 1050045 · source status “CLEAR” · checked October 16, 2026
Place data: Overture Maps Foundation (Microsoft), CDLA-Permissive-2.0
All of Marin County · All California counties
California contractors are licensed by the CSLB. A license record shows its classifications, status and bond and workers' compensation filings. Check which classification covers your specific foundation or waterproofing scope.
Look up the business in the CSLB public search before you sign. A credential shows legal standing at most. It does not show that a business does foundation or waterproofing work, so we show separate, dated service evidence where we have it. Neither is a rating of workmanship. How we verify listings.