MasTec is one of the largest infrastructure contractors in North America, with nearly 22,000 employees, headquarters in Coral Gables, Florida, and a record $21.4 billion backlog at the end of the second quarter of 2026. Its communications business expects about $3.25 billion in revenue this year, and management has named fiber as that segment’s biggest opportunity. That’s a lot of work for fiber, wireless, and underground subcontractors, but it starts with a vendor process. Here’s how getting set up works, what MasTec checks, and where insurance fits.
First: Which MasTec?
MasTec, Inc. is a family of operating companies working in communications, power delivery, pipeline, power generation, civil, data centers, and more. Fiber and wireless work usually runs through MasTec Communications Group, whose 2025 contractor and supplier policies cover six companies:
- Byers Engineering Company
- Decisive Communications
- MasTec Network Solutions
- MasTec North America
- QuadGen Wireless Solutions
- SEFNCO Communications
The group lists the work it subcontracts as wireline engineering and construction, wireless engineering and construction, professional services, EV infrastructure, and public safety.
This matters for your paperwork. Your subcontract, your certificate holder, and your additional insured wording should name the MasTec company that actually issues your work, not just “MasTec.” It’s the same lesson as the Dycom family of companies: one parent, many contracting entities.
Getting Set Up, Step by Step
1. Make contact. MasTec Communications Group’s contractor page lists two addresses. Construction, professional, and general services contractors use Contractor@MasTec.com. Material suppliers and heavy-equipment rental companies use Sourcing@MasTec.com.
2. Register in Avetta and select MasTec. MasTec runs contractor and supplier prequalification through Avetta. If you’re new to Avetta, there’s a one-time $249 registration fee plus an annual membership fee based on the number of client sites, the services you provide, and the documents MasTec requests. Two- and three-year options are available at reduced rates. If you’re already active in Avetta for another client, the one-time fee doesn’t apply.
3. Complete the prequalification. Fill out MasTec’s questionnaire and upload the documents the system asks for, which typically include insurance certificates, safety program information, and company details. Our Avetta step-by-step guide walks through the platform.
4. Reach “Complete” status. That’s the status MasTec’s program asks vendors to reach. An incomplete profile is the most common reason a new vendor is stuck waiting.
5. Contract with the specific MasTec company. Sign the subcontract, then issue a certificate of insurance that names that company exactly, with the endorsements your insurance exhibit asks for actually on the policy.
6. Keep it current. Expired certificates get flagged, so send renewals before the expiration date, not after. MasTec Communications Group also asks its strategic suppliers to confirm every year that they follow its published policies.
What MasTec Expects Beyond Insurance
MasTec Communications Group publishes contractor and supplier policies that set expectations for its whole supply chain. They cover:
- Business ethics: anti-bribery rules (gifts limited to modest meals and entertainment), the Foreign Corrupt Practices Act, and conflicts of interest
- Customer data protection, which matters for any crew working inside customers’ homes or businesses
- Environmental protection: energy efficiency, hazardous substances, conflict minerals, and hazardous and regulated waste
- Labor: freedom of association, and wages and compensation
- A drug- and smoke-free workplace, and occupational health and safety
In practice that means having a written safety program, a drug and alcohol policy, and a plan for handling customer information before you register. Boring crews should also be able to explain how they dispose of drilling fluid, since that falls under the waste rules.
Supplier diversity. MasTec Communications Group’s policy is to give certified minority-, women-, and disabled-veteran-owned businesses the maximum practicable opportunity to take part in its contracts, and to make good-faith efforts to award them subcontracts. Its contractor page also lists veteran-, disability-, and LGBTQ+-owned enterprises. If you qualify, get certified before you register so the certification is on your vendor profile from the start.
The Insurance Side
There isn’t one “MasTec insurance requirement.” Your limits come from the insurance exhibit in your subcontract, and they vary by MasTec company, customer program, and scope of work. A splicing crew and a boring crew on a highway route may see different exhibits. That said, prime-level programs usually ask for something like this:
| Coverage | What prime programs typically ask for |
|---|---|
| General liability | $1M per occurrence / $2M aggregate, additional insured for ongoing and completed operations, waiver of subrogation, primary and non-contributory |
| Commercial auto | $1M combined single limit, including hired and non-owned autos |
| Workers’ comp | Statutory limits, plus employers liability |
| Umbrella | Commonly $2M–$5M, depending on scope and customer |
| Pollution | Common for underground and directional boring scopes |
| Equipment | Inland marine for owned, leased, and rented equipment |
Read your forms schedule, too. Exclusions such as XCU or CG 21 39 can get a certificate questioned in prequalification, though whether a particular exclusion matters depends on the MasTec company and your scope. Our 16 GL exclusions guide explains what reviewers look for. For the coverage itself, see our MasTec subcontractor insurance page. Already insured and want a second opinion before you upload to Avetta? Start with a free renewal review.
Frequently Asked Questions
How do I become a MasTec subcontractor?
Contact MasTec first: construction, professional, and general services contractors use Contractor@MasTec.com, and material suppliers and heavy-equipment rental companies use Sourcing@MasTec.com. Then register in Avetta and select MasTec, complete the prequalification, and reach Complete status. Finally, sign the subcontract with the specific MasTec company issuing the work and provide a certificate of insurance that names that company.
Does MasTec use Avetta or ISNetworld?
MasTec runs its vendor management program through Avetta. Contractors and suppliers register at avetta.com, select MasTec, complete the prequalification, and work toward Complete status. Customer programs you work on through MasTec can have their own compliance requirements on top of that.
How much does it cost to register with Avetta for MasTec?
Companies that aren't already active in Avetta pay a one-time $249 registration fee. There is also an annual membership fee based on the number of client sites, the services you provide, and the documents MasTec requests. Avetta offers two- and three-year options at reduced rates.
What insurance do MasTec subcontractors need?
Your subcontract's insurance exhibit sets it, and it varies by MasTec company, customer program, and scope of work. Most prime-level programs ask for $1M/$2M general liability with additional insured status, waiver of subrogation, and primary and non-contributory wording; $1M commercial auto; workers' compensation with employers liability; and an umbrella. Underground and directional boring scopes commonly add pollution liability.
Does MasTec have a supplier diversity program?
Yes. MasTec Communications Group's policy is to give certified minority-, women-, and disabled-veteran-owned businesses the maximum practicable opportunity to take part in its contracts, and its contractor page also lists veteran-, disability-, and LGBTQ+-owned enterprises.