401k Lookup

Mastec 401(k) and retirement plans

Mastec, Inc, Coral Gables, FL. EIN 65-0829355. Annual reports 2009–2025. Also filed as Halsted Communications Ltd; Mastec, Inc.

Mastec, Inc has one active retirement plan on file, the The Mastec, Inc. 401K Retirement Plan, with 29,923 participants and $918 million in assets in 2025. Schwab is its recordkeeper. No traditional pension plan appears in Mastec's filings since 2009.

Active plans
1
Participants
29,923
Plan assets
$918 million
401(k) recordkeeper
Schwab
Plans on file
2
Industry
Construction

All 2 plans

Active plans first

The Mastec, Inc. 401K Retirement Plan

401(k)Active

Active. The plan filed its annual report for the 2025 plan year.

Plan number
002Employer EIN 65-0829355
Participants (2025)
29,923
Net assets (2025)
$918 million
Recordkeeper
SchwabEarlier: Merrill (2013–2024), Empower (2009–2012)
Plan administrator
Mastec, Inc
800 S. Douglas Road, 12TH Floor
Coral Gables, FL 33134
(305) 599-1800As filed for 2025
In effect since
December 1, 1984

Earlier plan names: The Mastec, Inc. 401(k) Retirement Plan.

Year by year, 2009 to 2025
Plan yearParticipantsNet assetsRecordkeeper
202529,923$918 millionSchwab
202428,413$736 millionMerrill
202328,293$592 millionMerrill
202227,737$457 millionMerrill
202122,530$411 millionMerrill
202019,108$314 millionMerrill
201919,064$264 millionMerrill
201816,583$187 millionMerrill
201716,248$184 millionMerrill
201616,556$144 millionMerrill
201516,271$105 millionMerrill
201415,416$87.5 millionMerrill
201311,969$76.2 millionMerrill
201210,463$55.6 millionEmpower
20119,717$41.8 millionEmpower
20106,053$26.3 millionEmpower
20095,812$23.5 millionEmpower

Halsted Communications Ltd 401(k) Plan

401(k)Closed

Closed. The plan filed its final annual report for 2013, which means its assets were paid out or moved and it no longer exists.

Plan number
003Employer EIN 65-0829355
Participants (2012)
217
Net assets (2012)
$393,362
Recordkeeper
Nationwide2010–2013
Plan administrator
Mastec, Inc.
800 South Douglas Road, 12TH Floor
Coral Gables, FL 33134
(305) 406-1876As filed for 2013
In effect since
January 1, 2000

Earlier sponsor: Halsted Communications Ltd (2009–2010).

Earlier plan names: Halsted Communications Ltd 401(k) Pension Plan.

Year by year, 2009 to 2013
Plan yearParticipantsNet assetsRecordkeeper
20130$0Nationwide
2012217$393,362Nationwide
2011343$609,110Nationwide
2010680$791,756Nationwide
2009737$316,462not listed

If you had money in one of these plans

  1. Call Schwab (schwab.com), which runs the The Mastec, Inc. 401K Retirement Plan. With your Social Security number and the plan name, it can tell you whether you still have a balance and, if not, where it went.
  2. Or call the plan administrator listed on the plan below ((305) 599-1800). That number was filed for 2025; ask for the benefits or retirement plan office.
  3. If your plan closed, unclaimed balances usually went to an IRA in your name, to the PBGC's missing participants program, or to state unclaimed property. Here is how to check each one.
  4. Still stuck? The Department of Labor's benefits advisers help for free: askebsa.dol.gov or 1-866-444-3272. Never pay anyone to find your own money.

What these numbers are

Sources: U.S. Department of Labor, Form 5500 datasets and PBGC trusteed plans. How we read them.

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