Mastec, Inc. 401(k) Plan: Login, Facts & Contact Information
Mastec, Inc. 401(k) Login
4,326 former Mastec, Inc. employees still have money in this plan.
Retirement plan providers can change. This information is from the plan's 2024 filing.
Mastec, Inc. 401(k) Plan Facts
Source: Form 5500 for plan year 2024 (Jan 1, 2024 – Dec 31, 2024), filed Jun 27, 2025. Public filing with the U.S. Department of Labor.
Money in and out in plan year 2024
- $110.5 million went into the plan in contributions, $35.4 million of it from the employer (32%).
- $88.1 million was paid out to participants.
- Investment and other income added $122.9 million.
- Administrative expenses were $1.12 million, about $81 per account.
How the Mastec, Inc. 401(k) changed, 2019–2024
| Plan year | Participants | Plan assets | Employer contributions | Benefits paid |
|---|---|---|---|---|
| 2019 | 16,583 | $263.8 million | $16.5 million | $24.0 million |
| 2020 | 19,064 | $314.2 million | $19.3 million | $38.6 million |
| 2021 | 19,108 | $410.8 million | $23.1 million | $39.4 million |
| 2022 | 22,530 | $457.2 million | $30.2 million | $45.7 million |
| 2023 | 28,521 | $591.6 million | $36.4 million | $62.3 million |
| 2024 | 28,293 | $736.0 million | $35.4 million | $88.1 million |
Mastec, Inc. 401(k) Contact Information
Questions about the Mastec, Inc. 401(k)
Does Mastec, Inc contribute to the 401(k)?
Yes. The plan reports an employer contribution arrangement. In plan year 2024 the employer contributed $35.4 million, 32% of all contributions.
Does the Mastec, Inc 401(k) have automatic enrollment?
No. The plan does not report automatic enrollment; employees enroll themselves.
How many people are in the Mastec, Inc 401(k) plan?
28,293 participants at the start of plan year 2024, 23,943 of them active employees, and 4,326 former employees who still had money in the plan.
What is the average 401(k) balance at Mastec, Inc?
About $53,144 per account: $736.0 million in plan assets across 13,850 accounts with a balance at the end of plan year 2024.
Who manages the Mastec, Inc 401(k) accounts?
Merrill Benefits OnLine (listed on the filing as MERRILL LYNCH, PIERCE, FENNER AND S) is the plan's recordkeeper, which is where participants log in to see their balance.
I no longer work at Mastec, Inc. How do I access my 401(k)?
Your account stays with Merrill Benefits OnLine after you leave, so you can log in with the same credentials. If your balance was small, the plan may have rolled it into an IRA in your name. If you can't find it, Beagle can locate it for you.