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  7. Jeffords Steel and Engineering Company
Jeffords Steel and Engineering Company logo

Jeffords Steel and Engineering Company

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Plattsburgh, NY 12901
518-561-4061
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At a glance

Headquarters
Plattsburgh, NY
UEI
ZPVLLLFDZZ88
CAGE
42310

About

Founded by Larry and Judy Jeffords in Plattsburgh the day after their 1985 wedding, Jeffords Steel and Engineering Company is a family-owned fabricator of structural and miscellaneous steel for construction projects across the Northeast. The company has grown from a 30-by-30-foot rental shop into two New York facilities spanning more than 100,000 square feet and employing over 100 people, while keeping design-build and engineering capabilities in-house. Jeffords has been an AISC-certified fabricator since 2000 and is also an AWS Certified Fabricator Facility.

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Certifications and registrations

Certifications

  • American Institute of Steel Construction (AISC) Certified Fabricator

  • American Welding Society (AWS) Certified Fabricator Facility

Related manufacturers

  • STS Steel, Inc logoSTS Steel, IncFounded in 1984 by two structural engineers, STS Steel fabricates structural steel and plate for complex buildings, bridges, hydraulic structures and other demanding projects. The Schenectady company works from a 62,000-square-foot former American Locomotive Company heavy-fabrication shop and has grown to more than 60 employees, shipping pieces that require substantial lifting capacity and exacting tolerances. STS became 100% employee-owned through an ESOP established in 2009 and holds AISC certifications covering building structures, advanced bridges and hydraulic steel structures.SCHENECTADY, NY
  • Strait Steel Inc logoStrait Steel IncFounded by Dallas Strait in 1965 as Strait Mfg. & Welding, Strait Steel fabricates structural steel for major construction projects from its 145,000-square-foot Greencastle, Pennsylvania facility. Now led by Greg Strait, the company carries its founder’s service-and-quality philosophy into projects across the Northeast and Mid-Atlantic, with work ranging from 500-ton jobs to single projects of up to 12,000 tons. Strait Steel is AISC certified and provides coordinated support from detailing and project management through fabrication and erection.GREENCASTLE, PA
  • Stronghold Systems logoStronghold SystemsStronghold Systems grew from founder Chris Hall’s single welding truck into a structural and miscellaneous steel fabricator and installer serving construction, infrastructure, and industrial projects. With more than 40 employees, the company combines shop fabrication, field installation, and BIM coordination, with certified crews working across the Northeast. Its welders hold AWS, Department of Buildings, and OSHA-related certifications for structural and miscellaneous steel work.CARMEL, NY
  • Schlosser Steel, Inc logoSchlosser Steel, IncSchlosser Steel, Inc. is a Hatfield, Pennsylvania steel fabricator serving the construction industry, and has done so for three generations. Its 88,000-square-foot facility produces fabricated structural steel, and the company has held AISC certification since 1981. The firm serves projects across Pennsylvania, New Jersey, and the Mid-Atlantic region.HATFIELD, PA
More manufacturers in New York

Contact information

Website

jeffordssteel.com

Phone numbers

  • 518-561-4061
  • 315-265-3871

Locations

Jeffords Steel and Engineering Company location map for 4398 STATE ROUTE 22

4398 State Route 22

Plattsburgh, NY 12901

Clinton County

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Jeffords Steel and Engineering Company location map for 145 MAPLE ST

145 Maple St

Potsdam, NY 13676

St. Lawrence County

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Jeffords Steel and Engineering Company location map for 4398 ROUTE 22

4398 Route 22

Plattsburgh, NY 12901

Clinton County

Get directions
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Directory source

Source
jeffordssteel.com
Updated
Sep 2026