Frankfurt John C
Verified against CSLB on · View on CSLB
License details
- License number
- 555308
- Classifications
- License term on file
- January 24, 1989 – January 31, 2027
Business
- (650) 465 9700 (CSLB public record)
- 2109 COLUMBIA STREET, Palo Alto, CA 943061233Santa Clara County
Are you Frankfurt John C? Claim this listing to manage it.
Claim this listingRequest a free quote
Tell us about your project and we'll connect you with licensed, verified California contractors.
Other General Building contractors in Palo Alto
Alma Builders Inc
B · Palo Alto, CA
Verified June 17, 2026 · Bonded
Sunplanter Incorporated
B · Palo Alto, CA
Verified June 17, 2026 · Bonded
Innovo Builders Inc
B · Palo Alto, CA
Verified June 17, 2026 · Bonded
Kang Eric Li
B · Palo Alto, CA
Verified June 17, 2026
Abbcm LLC
B · Palo Alto, CA
Verified June 17, 2026 · Bonded
Viking Systems Inc
B · Palo Alto, CA
Verified June 17, 2026 · Bonded
What to check next
Frequently asked questions
Is Frankfurt John C licensed in California?
Yes. Frankfurt John C holds an active California state contractor license (CSLB #555308), verified against the CSLB public record on June 17, 2026.
What is Frankfurt John C's CSLB license number?
Frankfurt John C's California contractor license number is 555308. Look that number up with the CSLB "Check a License" tool to confirm its current status against the public record yourself.
What kind of work is Frankfurt John C licensed for?
Frankfurt John C is classified under General Building (B) by the CSLB.
How do I verify Frankfurt John C's license myself?
Look up license #555308 with the CSLB "Check a License" tool and compare the status, bond, and workers' compensation details against what's shown on this page. This page reflects the CSLB public record as of June 17, 2026.
Verify it yourself: How to verify a California contractor license · Look up #555308 on CSLB
See an error in this record? Report incorrect information. Status reflects CSLB data as of the date shown above.