Licensed General Engineering (A) contractors in California

The California Contractors State License Board (CSLB) lists 15,260 California contractors classified A (General Engineering (A)). Each entry below links to a full dossier with license status, insurance, bond, and enforcement — as of July 9, 2026.

Showing 11,401–11,460 of 15,260 contractors

Romo Pipeline
Perris, CA · CSLB #992739 · as of July 9, 2026
Active · clear
Romstar Construction INC
Antelope, CA · CSLB #986144 · as of July 9, 2026
Active · clear
Ronald Humphrey
Flournoy, CA · CSLB #1019194 · as of July 9, 2026
Active · clear
Ronan General Engineering
San Francisco, CA · CSLB #997619 · as of July 9, 2026
Active · clear
Ron & Brett Construction INC
Rancho Mission Viejo, CA · CSLB #783699 · as of July 9, 2026
Active · clear
Ron Clegg
Santa Cruz, CA · CSLB #536361 · as of July 9, 2026
Active · clear
Ronderos Engineering
Oak Hills, CA · CSLB #1018556 · as of July 9, 2026
Active · clear
Rong's Backhoe Service
Napa, CA · CSLB #629852 · as of July 9, 2026
Active · clear
Ron's Backhoe Excavating
Bluffcity, CA · CSLB #765651 · as of July 9, 2026
Active · clear
The Mark Rood CO
Watsonville, CA · CSLB #697074 · as of July 9, 2026
Active · clear
Rooflift Specialists LLC
Middle River, CA · CSLB #1068528 · as of July 9, 2026
Active · clear
Rooter Hero
Mission Hills, CA · CSLB #1028886 · as of July 9, 2026
Active · clear
Rooter Solutions
Ventura, CA · CSLB #1101015 · as of July 9, 2026
Active · clear
The Galicia Group INC DBA Rooter Solutions
Ventura, CA · CSLB #1046213 · as of July 9, 2026
Active · clear
Roots Strong Builder
Napa, CA · CSLB #1154113 · as of July 9, 2026
Active · clear
Roozbeh INC
Beverly Hills, CA · CSLB #1041899 · as of July 9, 2026
Active · clear
Roq Plumbing INC
North Hollywood, CA · CSLB #1072359 · as of July 9, 2026
Active · clear
Rorabaugh Earthmoving
Hopland, CA · CSLB #895381 · as of July 9, 2026
Active · clear
Rore INC
San Diego, CA · CSLB #898563 · as of July 9, 2026
Active · clear
Rory Shaw Partners Joint Venture
Pico Rivera, CA · CSLB #1154013 · as of July 9, 2026
Active · clear
Eric Rosado
Calimesa, CA · CSLB #868335 · as of July 9, 2026
Active · clear
Rosales General Engineering Contracting INC
Corona, CA · CSLB #1002476 · as of July 9, 2026
Active · clear
Rosas Brothers Construction
Oakland, CA · CSLB #848835 · as of July 9, 2026
Active · clear
Rosas Construction
Oakland, CA · CSLB #805099 · as of July 9, 2026
Active · clear
Rosas Engineering INC
San Ysidro, CA · CSLB #1134441 · as of July 9, 2026
Active · clear
Robert Rose Construction INC DBA Rose Construction
San Diego, CA · CSLB #642557 · as of July 9, 2026
Active · clear
Rose Engineering
Mendocino, CA · CSLB #856024 · as of July 9, 2026
Active · clear
Rosendin Electric INC
San Jose, CA · CSLB #142881 · as of July 9, 2026
Active · clear
Rosendin Electric INC / Redwood Electric INC Joint Venture
San Jose, CA · CSLB #969475 · as of July 9, 2026
Active · clear
Rosenex
San Diego, CA · CSLB #1135412 · as of July 9, 2026
Active · clear
David S Rosenthal
Camarillo, CA · CSLB #944747 · as of July 9, 2026
Active · clear
D John Roser INC
Westlake Village, CA · CSLB #506778 · as of July 9, 2026
Active · clear
Kiel Rosetti INC DBA Rosetti Engineering
Hopland, CA · CSLB #993756 · as of July 9, 2026
Active · clear
Roshan Pro Construction Builders
Roseville, CA · CSLB #1151577 · as of July 9, 2026
Active · clear
Frank Ross
Chowchilla, CA · CSLB #408801 · as of July 9, 2026
Active · clear
Gabe Ross Construction
Cottonwood, CA · CSLB #936270 · as of July 9, 2026
Active · clear
Ross Infrastructure Development LLC
Rancho Santa Fe, CA · CSLB #887547 · as of July 9, 2026
Active · clear
Rosskopf Engineering
Caspar, CA · CSLB #767077 · as of July 9, 2026
Active · clear
Ross Mclaren Construction
Canyon Country, CA · CSLB #1134271 · as of July 9, 2026
Active · clear
Ross Recreation Equipment Company INC
Santa Rosa, CA · CSLB #520752 · as of July 9, 2026
Active · clear
Rey R Ross
San Diego, CA · CSLB #1101557 · as of July 9, 2026
Active · clear
Mark D Roth
Tulare, CA · CSLB #879994 · as of July 9, 2026
Active · clear
Limor Rotholz
Woodland Hills, CA · CSLB #1089405 · as of July 9, 2026
Active · clear
Roto-rooter
Oakdale, CA · CSLB #604196 · as of July 9, 2026
Active · clear
Roto-rooter Plumbers
Vista, CA · CSLB #966412 · as of July 9, 2026
Active · clear
Roto-rooter Plumbers And Septic Service
Apple Valley, CA · CSLB #752077 · as of July 9, 2026
Active · clear
Roto-rooter Shasta County
Redding, CA · CSLB #990294 · as of July 9, 2026
Active · clear
Roughstock Contruction
Valley Springs, CA · CSLB #1096000 · as of July 9, 2026
Active · clear
Rountree Plumbing And Heating INC
Roseville, CA · CSLB #265489 · as of July 9, 2026
Active · clear
Route 37 Constructors
Pleasanton, CA · CSLB #1128760 · as of July 9, 2026
Active · clear
Roux Associates INC
Islandia, CA · CSLB #964122 · as of July 9, 2026
Active · clear
Roval Group
Escondido, CA · CSLB #985115 · as of July 9, 2026
Active · clear
Rove Engineering INC
El Centro, CA · CSLB #1046101 · as of July 9, 2026
Active · clear
Row Construction
Roseville, CA · CSLB #1142940 · as of July 9, 2026
Active · clear
Rowell Enterprises INC
Orangevale, CA · CSLB #1035381 · as of July 9, 2026
Active · clear
Rowley Engineering
Arroyo Grande, CA · CSLB #1012480 · as of July 9, 2026
Active · clear
Todd W Row A General Engineering Contractor
San Jose, CA · CSLB #640539 · as of July 9, 2026
Active · clear
Royal Building Solutions INC
San Diego, CA · CSLB #1046980 · as of July 9, 2026
Active · clear
Royal Construction & Builders INC
Redondo Beach, CA · CSLB #857366 · as of July 9, 2026
Active · clear
Royal Electric Company
Sacramento, CA · CSLB #357377 · as of July 9, 2026
Active · clear

Data sourced from the California Contractors State License Board (CSLB), current as of July 9, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.