Traffic Control & Flagging in California

36 traffic control and flagging companies in 27 cities and towns. Flagging crews, cones, barricades, signs and work-zone traffic plans for road and utility jobs. Typical timing: often 1–2 weeks; emergency call-outs from some companies.

How Many Traffic Control and Flagging Companies Are in California?

We list 36 traffic control and flagging companies in California, across 27 cities and towns; the most are in Sacramento (4), San Francisco (3), Santa Ana (3). Typical timing is often 1–2 weeks; emergency call-outs from some companies. Ask each for a written quote with every fee included and compare the totals.

Updated November 6, 2026 · Sources: OpenStreetMap, Overture Maps, CMS NPI registry and state data (refreshed November 6, 2026).

By City

Before You Commit

Are your flaggers certified as my state requires?
Can you draw and submit the traffic control plan and permit?
Does the setup follow the MUTCD and state supplement?
Are you insured, and can I be added as additional insured?
What is the minimum call-out and overtime rate?

Flagger certification rules are set by each state, so check your DOT.
Ask who is responsible for checking the setup each day and at night.
Get the plan approved early, because road permits can take longer than the work.

Traffic Control & Flagging in every state · Questions to Ask Traffic Control & Flagging

Traffic Control & Flagging in California

How Many Traffic Control and Flagging Companies Are in California?

By City

Before You Commit

Traffic Management, Inc.

Southern California Barricades

Rtl Traffic Control And Equipment Rentals

Statewide Traffic Safety & Signs

Safety Network, Traffic Control Services, Inc.

Ampd Traffic Control

Alcoa Traffic Control

Barricade Green

Tops N Barricade

Abc Traffic Safety Program

Craigslistflaggingservice

Pacific Traffic Control

R P Barricade Inc

Traffic Control & Safety Corporation

Total Barricade Services

Associated Traffic Safety, Inc.

Boston Barricade Company

TCP Temporary Traffic Control Drawings Plans Services Company Near Me

Statewide Traffic Safety & Signs

California Traffic Safety

Capitol Barricade

Traffic Control Plan

Traffic Safety Corporation

Co's Traffic Control, Inc.

SS Traffic Control Designs

Cmc Traffic Control Specialists, Inc.

Dr Traffic Control LLC

Yolanda's Construction Administration & Traffic Control

California Barricade Rentals, Inc.

National Traffic Safety Institute

National Traffic Safety Institute

Central Coast Traffic Safety

The Barricade Co

California Traffic Control Inc.

Site Safe Traffic Safety And Signs, Inc.

North Valley Barricade Inc