Donnelly Mechanical Corp. is New York City’s premier provider of innovative commercial HVAC service, maintenance and construction. With over 30 years experience and 200+ employees, Donnelly serves New York City’s most prominent commercial organizations across a variety of sectors including data centers, healthcare facilities, Class-A office spaces and commercial real estate management firms.

In July of 2021, Donnelly Mechanical joined the Equans global business line, and in October 2023, the acquisition of Equans by Bouygues, a French-owned construction company, was successfully completed.

Equans now stands as the largest business segment within the Bouygues Group, boasting impressive sales of €17 billion and employing approximately 97,000 individuals.


Donnelly Mechanical Corp. is an indirect, wholly-owned, subsidiary of Equans U.S, Inc., which in turn is part of the global Equans group.

Equans U.S, Inc. has over 6,800 employees and generated over $1.9 billion of revenue in 2022.

Donnelly maintains its status as an independent entity operating within the New York City market. Benefiting from the robust financial support of the Equans group on a global scale, Donnelly demonstrates remarkable financial strength and stability.

The global Equans group is active in in over 20 countries, employing approximately 97,000 people. In 2022, the Equans group’s total annual revenue exceeded €17 billion.

The Equans group’s ultimate parent company is Bouygues S.A. (“Bouygues”), a diversified services and construction group headquartered in Paris and listed on the Paris stock exchange. Bouygues is present in over 80 countries and operates in markets with strong growth potential. In 2022, Bouygues employed over 190,000 people and generated €44.3 billion in revenue.

Bouygues maintains an investment grade credit rating of A- / A3 (S&P / Moody’s).

EQUANS North America

Equans Noram is a trailblazer in mechanical and electrical construction, industrial and energy infrastructure, and building services. Our collaborative group is present in 40+ locations across the United States and Canada and has combined revenues of$1.9B+ in 2022.

The entities that make up Equans North America include a collaborative group of commercial infrastructure experts that support clients to optimize their energy use and efficiently run their facilities. With offices across the U.S. and Canada, our organization offers a rare combination of wide territorial reach and proven local expertise.

Key Numbers 2022

Equans Noram - in USD
6,800 Employees
3,200 Union
1,400 Non-Union
35+ Projects in States
5 Projects in Provinces
$1.9B Revenue
5,100+ Projects commissioned/year