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Our Employee-Owned Companies

Get to know the businesses forging the future of America’s construction industry.

Emery Sapp & Sons

The Midwest’s leading turnkey heavy civil contractor, delivering best-in-class service for horizontal infrastructure projects of all sizes.

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1.6K+
Employee-owners
1972
Founded
1999
ESSC ESOP begins with ESS
Careers

Achen-Gardner Construction

A prominent Arizona contractor specializing in complex heavy civil infrastructure projects for public and private sector clients.

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350+
Employee-owners
1989
Founded
2019
Joined ESSC
Careers

Rummel Construction

Headquartered in Scottsdale, Arizona, Rummel provides top-quality heavy civil construction services throughout the Southwest.

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750+
Employee-owners
1996
Founded
2022
Joined ESSC
Careers

Monks Construction

A respected Western Region contractor, based in Colorado, with decades of experience delivering complex heavy civil infrastructure projects for public and private sector clients.

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150+
Employee-owners
1958
Founded
2025
Joined ESSC
Careers

Premier Testing Laboratories

An independent testing facility accredited by AASHTO, CCRL, and USACE testing asphalt mixture and binder, concrete, and aggregate nationwide.

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20+
Employee-owners
2012
Founded
2020
Joined ESSC

Keep Up With ESSC Companies

What We’ve Been Up To

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Company
Record Growth, ‘Monster Year’ Puts ESS Companies over $1B Mark
Revenue topped the $1 billion mark for the first time in ESS Companies' (ESSC) 52-year history — increasing 491% over a five-year span with an average increase of 140% every year.
Awards
Company
Emery Sapp Ranked #33 on ENR Midwest Top Contractors List
ESS Companies (ESSC) is thrilled to announce that Emery Sapp & Sons (ESS) has been ranked #33 out of 84 on the Engineering News-Record (ENR) Midwest Top Contractors list.
Awards
Company
ESS Companies Ranked 119 on ENR’s Top 400 List
ESS Companies (ESSC) has been ranked #119 on the 2024 Engineering News-Record’s (ENR) Top 400 General Contractors list and #49 on their Top Domestic Heavy Contractors list!
Awards
Company
ESS Companies Earns Regional Recognition on ENR Top Contractors Lists
This year, ESS Companies (ESSC) is proud to be recognized on not one, but two ENR Top Contractors Lists: ranked at #32 in the Midwest and #15 in the Southwest.
Company
ESS Companies Welcomes Monks Construction
We are proud to announce that Monks Construction, based in Colorado Springs, Colorado, has officially joined ESS Companies!