Harmon Inc. Comes Out on Top in ENR’s Glazing and Curtainwall List

Engineering News-Record (ENR) recently released its “Top 600 Specialty Contractors” list, which includes the largest revenue-generating glazing and curtainwall firms in the country.

Revenue for the top ten firms in the glazing and curtainwall category totaled $1.58 billion in 2020 (the revenue year considered for the 2021 rankings), down from the previous year’s total of $1.85 billion.

Harmon Inc. topped the list this year after being ranked second in 2020 and 2019. The company is listed as having $295.8 million in revenue in 2020.

Of those companies in the top 10, the only one to have dropped in the ranking was Massey’s Plate Glass & Aluminum, which was No. 6 in 2020.

Here are the top ten glazing and curtainwall firms according to ENR:

1 – Harmon Inc., Bloomington, Minn.

$295.8 million, ranked 2 in 2020

2 – MiTek (formerly Benson Industries)

$215 million, ranked 3 in 2020

3 – W&W Glass LLC, Nanuet, N.Y.

$200 million, ranked 4 in 2020

4 – Crown Corr Inc., Gary, Ind.

$169.2 million, ranked 5 in 2020

5 – Flynn Group, Kansas City, Kan.

$167.3 million, ranked 7 in 2020

6 – Architectural Glass & Aluminum, Livermore, Calif.

$155.9 million, ranked 8 in 2020

7 – Ventana, Chicago

$124 million, ranked 9 in 2020

8 – Massey’s Plate Glass & Aluminum Inc., Branford, Conn.

$115 million, ranked 6 in 2020

9 – Pioneer Cladding & Glazing Systems LLC, Mason, Ohio

$79.6 million, ranked 10 in 2020

10 – Giroux Glass, Los Angeles

$62.8 million, ranked 12 in 2020

Enclos Corp., of Eagan, Minn., which topped the list at No. 1 for the last four consecutive years, was not included in ENR’s top glazing and curtainwall firms this year.

USGlass magazine also publishes an annual list of the nation’s top contract glaziers. Check out our 2021 list, published in February, here, and be on the lookout for the upcoming edition in February 2022.

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