Verified Nov 2026
Electronics & Software
·
Greenwood, Indiana
·
Since 1962
ERMCO, Inc. is an employee-owned electrical contractor headquartered in Greenwood, Indiana, founded in 1962 and employing roughly 200 to 500 people. It provides electrical construction, low-voltage systems, medium and high voltage installations, and building automation across commercial, industrial, and residential sectors. In 2026 the company announced a new manufacturing facility in Maricopa County, Arizona, and reported an expansion of its transformer manufacturing plant in Granby, Quebec.
Ermco, Inc. at a glance
Revenue
$250-500M
Est. band
Employees
200-500
Founded
1962
Headquarters
Greenwood, Indiana
Industries
Automotive
Electric Vehicles
Electronics
Construction
Industrial Equipment
Overview
ERMCO, Inc. is an employee-owned electrical contractor headquartered in Greenwood, Indiana, founded in 1962 and employing roughly 200 to 500 people. It provides electrical construction, low-voltage systems, medium and high voltage installations, and building automation across commercial, industrial, and residential sectors. In 2026 the company announced a new manufacturing facility in Maricopa County, Arizona, and reported an expansion of its transformer manufacturing plant in Granby, Quebec.
At a glance
Attribute | Detail |
|---|---|
Founded | 1962 |
Headquarters | Greenwood, Indiana |
Employees | 200-500 |
Revenue | $250-500M (estimated) |
Primary capability | Electronics & Software |
What Ermco, Inc. makes
The company lists electronics and software as its primary capability and offers design-build engineering, 3D modeling and BIM, prefabrication, energy management, and preventative maintenance services.
Products and capabilities described on the company's own site include Lighting, Assembly, Transmission, Steel, Pump (source: ermco.com).
Latest developments
2026-10-06 — ERMCO expands Granby, Que. transformer manufacturing plant - Electrical Business (ebmag.com)
2026-09-01 — Big congrats to ERMCO, Inc., one of our Central Indiana NECA members, on being featured in Engineering News-Record Midwest's coverage of 2025 Top Specialty Contractors! | Central Indiana Chapter NECA (linkedin.com)
2026-08-27 — Exciting progress is underway in Arizona! Renovation activities have officially begun at our new facility in Waddell. Chief Operating Officer Jeff Hammons, Project Management Office Director John Shane, IT Consultant Adam Jones, … (linkedin.com)
2026-04-27 — Arkansas-Owned ERMCO Is Racing to Meet America's Transformer Demand (arkansasbusiness.com)
2026-01-21 — ERMCO to Open New Manufacturing Facility in Maricopa County - ERMCO Distribution Transformers (ermco-eci.com)
2025-09-08 — ERMCO Puts Innovation Front and Center on Projects Nationwide | Engineering News-Record (enr.com)
Facilities
Ermco, Inc. is headquartered in Greenwood, Indiana. Public sources also reference these locations:
Maricopa County, Arizona — arkansasbusiness.com
Company details
ERMCO is privately held and employee-owned, with an estimated annual revenue band of $250 million to $500 million, and it has been featured in Engineering News-Record Midwest's coverage of top specialty contractors. Ermco, Inc. was founded in 1962, has an estimated 200-500 employees, and is headquartered in Greenwood, Indiana.
Frequently asked questions
What does Ermco, Inc. make?
ERMCO, Inc. is an employee-owned electrical contractor headquartered in Greenwood, Indiana, founded in 1962 and employing roughly 200 to 500 people. It provides electrical construction, low-voltage systems, medium and high voltage installations, and building automation across commercial, industrial, and residential sectors. In 2026 the company announced a new manufacturing facility in Maricopa County, Arizona, and reported an expansion of its transformer manufacturing plant in Granby, Quebec.
Where is Ermco, Inc. headquartered?
Ermco, Inc. is headquartered in Greenwood, Indiana (Commerce Parkway West Dr, Greenwood, Indiana, 46143).
When was Ermco, Inc. founded?
Ermco, Inc. was founded in 1962.
How big is Ermco, Inc.?
Ermco, Inc. has an estimated 200-500 employees, with revenue in the $250-500M range (estimated).
Related suppliers
Explore other suppliers in the LightSource directory:
Last verified Nov 2026. Is this your company? Request a correction.
Location & contact
Evaluating suppliers like these?
This profile comes from a public-data sample of around 1,000 companies. Book a demo to see the full LightSource marketplace and supplier discovery platform — 1M+ credible suppliers, with AI-run sourcing events.