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Licensed General Engineering Contractors in Danville, California

Updated November 1, 2026 from CSLB's public license file · A General Engineering Contractor

  • 25licensed general engineering contractors
  • 25active (Clear)
  • 0%with a suspension
  • 28%workers' comp exempt
  • 19.6 yrsmedian time licensed
  • 80%corp / LLC / partnership (20% sole owner)
  • 3new in the last 12 months
  • —change tracking began November 1, 2026

Danville is home to 25 general engineering contractors in CSLB's license file, ranking #7 of 9 Contra Costa County cities for this trade. 100% are Clear.

28% report a workers' comp exemption, 7.4 points lower than the statewide figure for general engineering contractors (35.4%), so many of these businesses say they have no employees. The share with a suspension, 0%, is 2.3 points lower than the Contra Costa County rate for the same license (2.3%).

The median general engineering contractor here has held a license for 19.6 years (more than the statewide median of 18.5), and 3 licenses were issued in the last 12 months.

These firms hold CSLB's A (General Engineering Contractor) license for engineered fixed works. See the A General Engineering Contractor guide for what the license covers.

How to check a general engineering contractor's license in Danville

  1. Open the general engineering contractor's profile from the table below (or search Danville listings by name). Check that A appears among its classifications and that the primary status reads Clear. What A covers.
  2. Re-check the same number on CSLB's Instant License Check the day you sign; our copy is refreshed weekly and 0% of Danville listings here already show a suspension.
  3. Get the bid and contract in writing with the license number on it. If the job tops $1,000 in labor and materials, a licensed general engineering contractor is required by law. See the $1,000 rule.

All 25 general engineering contractors in Danville

Danville general engineering contractors sorted with Clear licenses first, then by years licensed. Badges reflect CSLB's file dated November 1, 2026, not a rating of anyone's work.

Licensed general engineering contractors in Danville
Business nameLicense #StatusYearsWorkers' compBond
Roberts-Obayashi James E Corporation 358519 Clear 48 Insured On file
Martin & Martin Construction 418913 Clear 44 Exempt On file
Joe A Callaway 555222 Clear 37 Exempt On file
Nugent Constructors INC 599590 Clear 36 Exempt On file
Production Excavating 643587 Clear 34 Exempt On file
Pacific Waste Services INC 716238 Clear 30 Insured On file
Freethy Jim Excavating INC 718343 Clear 30 Insured On file
Baillie Communications INC 735815 Clear 29 Exempt On file
S & H Construction INC 786358 Clear 26 Insured On file
California Professional Builders INC 803913 Clear 24 Insured On file
Spencon Construction INC 820205 Clear 23 Insured On file
Titus Mrf Services 872945 Clear 20 Insured On file
H P Construction Services INC 892621 Clear 19 Insured On file
Aspire Builders 920386 Clear 18 Insured On file
Aquatic Harvesting 963147 Clear 15 Insured On file
Bradley Tanks INC 964166 Clear 15 Insured On file
Blue Flame Crew West LLC 993502 Clear 12 Insured On file
Vanquish Environmental & Engineering 1007510 Clear 11 Insured On file
Amg Excavating INC 1020169 Clear 10 Exempt On file
Advanced Water Well Drilling & Pump Services 1022423 Clear 9 Insured On file
Boscolai Construction 1120060 Clear 2 Insured On file
Covenant Technical Solutions INC 1123021 Clear 2 Insured On file
S2serm LLC 1146389 Clear 1 Insured On file
Green Infrastructure and Environmental INC 1153113 Clear <1 Insured On file
Faten Fawzy 1162043 Clear <1 Exempt On file

Source: CSLB public data · Updated November 1, 2026 Status can change at any time. Verify on CSLB's Instant License Check.

Frequently asked questions

How many licensed general engineering contractors are in Danville?

CSLB's current public file lists 25 general engineering contractors with a Danville mailing address. 25 have a Clear status, and 92% show no issues at all in the file (no suspension, no pending action, bond on file, not near expiration).

What license does a general engineering contractor need in California?

These firms hold CSLB's A (General Engineering Contractor) license for engineered fixed works. Any job of $1,000 or more in labor and materials needs a licensed contractor. Read our guide to the $1,000 rule.

How do I check a general engineering contractor's workers' comp?

Each profile shows the workers' comp type, insurer and policy dates from CSLB's file. Among Danville general engineering contractors, 28% are exempt (no employees), 72% insured and 0% without current coverage. Verify a policy with CSLB's insurer search (step by step).

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Guides