How many solar & energy upgrades contractors are in SAN RAMON, CA?

4 with a current California license, as of 2026-08-31.

How do I check a California contractor license is current?

Every listing shows its state license number and expiry date. Verify any of them directly against the California CSLB licensee database.

Solar & Energy Upgrades contractors in SAN RAMON, CA

4 listings

Source: California CSLB license records. Last verified 2026-08-31.

There are 4 solar & energy upgrades contractors in SAN RAMON, California with a current state license as of 2026-08-31. The earliest license expiry among them is 2027-02-28; every listing shows its own number and expiry date. All are drawn from the California CSLB register; expired and inactive licenses are excluded.

Business	License	Type	Expires	City	Zip
SOLARPARK USA INC	930425	C-10, C-46	2027-03-31	SAN RAMON	94583	Set up workspace
SOLAR TECHNOLOGIES	932914	C-10, C-46	2027-05-31	SAN RAMON	94583	Set up workspace
THRIVING SOLAR SOLUTIONS INC	1085628	C-46	2028-01-31	SAN RAMON	94584	Set up workspace
VOLTA HVAC	1073370	C-10, C-20, C-46	2027-02-28	SAN RAMON	94582	Set up workspace

Quick answers

How many solar & energy upgrades contractors are in SAN RAMON?: 4 with a current California license, as of 2026-08-31.
How do I check a license is current?: Every listing shows its state license number and expiry. Verify any of them directly against the California CSLB licensee database.