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Top 50 Glaziers

Glass Magazine’s Top 50 Glaziers list, the longest-running glass industry ranking, is compiled annually. This resource captures the health of the glazing market by surveying top glazing companies about sales, bid levels, profit margins and major challenges.

See the most recent list of top contract glaziers below, and visit to get more information, including notable projects, market statistics and industry trends.

2019 Top 50 Glaziers

Ranked by sales (in millions)


1 Permasteelisa North America Windsor, CT

2 Enclos Corp. Eagan, MN

3 Benson Industries* Portland, OR

4 Harmon Inc. Bloomington, MN

5 Gamma North America Inc.  Concord, Ontario, Canada

6 Crown Corr Inc.  Gary, IN

7 W&W Glass  Nanuet, NY

8 Walters & Wolf* Fremont, CA

9 Binswanger Glass Memphis, TN

10 Karas & Karas Glass Co. Boston, MA

11 Architectural Glass & Aluminum Livermore, CA

12 Massey’s Plate Glass & Aluminum Inc. Branford, CT

13 seele Inc. New York City

14 Pioneer Cladding & Glazing Systems Inc. Mason, OH

15 Ventana Design-Build Systems  Chicago, IL

16 TSI Corp. Upper Marlboro, MD

17 Architectural Wall Systems LLC Des Moines, IA

18 RynoClad Technologies Inc. Ontario, CA

19 Alliance Glazing Technologies Romeoville, IL


20/21 Giroux Glass Inc.  Los Angeles, CA

20/21 Above All Store Fronts Hauppauge, NY

22 Admiral Glass Co. Houston, TX

23/24 Glass Solutions Inc. Itasca, IL

23/24 Haley-Greer Inc.  Dallas, TX

25 Kensington Glass Arts Ijamsville, MD

26 Ranger Specialized Glass Inc. Houston, TX

27 Lafayette Metal and Glass Co. Hauppauge, NY


28 Egan Company/ InterClad Brooklyn Park, MN

29/30 Cherry Hill Glass Co. Branford, CT

29/30 Tower Glass Inc. Santee, CA

31 Alexander Metals Inc. Nashville, TN

32 Dynamic Glass Houston, TX


33 Ajay Glass Co. Canandaigua, NY

34 Crawford-Tracey Corp. Deerfield Beach, FL

35 Anderson Aluminum Columbus, OH

36 Zephyr Aluminum LLC Lancaster, PA

37 JPI Glass Kansas City, MO

38 Koch Corp.(Strong Tower Construction) Louisville, KY

39 Sunset Glazing La Mesa, CA

40 National Enclosure Co. Ypsilanti, MI

41/42 Vision Enclosure Walls Inc. Dallas, TX

41/42 SPS Corp. Apex, NC

43 Tepcoglass LLC Dallas, TX

44 Specified Systems Inc. Canonsburg, PA

45 R&R Window Contractors Inc. Easthampton, MA

46 Wind Ready Miami, FL

47 Momentum Glass Spring, TX

48 Synergi LLC Hanover, MD

49/50 AFI Glass & Architectural Metal Inc. Poughkeepsie, NY

49/50 Mass Merchandising Bohemia, NY


Track year-over-year changes and trends in the contract glazing industry. See previous years’ reports at

Read the 2019 Top 50 Glaziers Feature in Glass Magazine

Buy the Top 50 Report for deeper market insights and contact details