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No. 178 · ENR Top 400 Contractors 2026

Gemma Power Systems

Gemma Power Systems is ranked No. 178 on the ENR Top 400 Contractors list for 2026, and is listed here in Glastonbury, Connecticut.

Who is Gemma Power Systems?

On the ENR Top 400 Contractors list for 2026, published by Engineering News-Record, it ranks No. 178.

Call Gemma Power Systems at (860) 659-0509. Its website is gemmapower.com.

Gemma Power Systems is one of 7 construction companies we list in Glastonbury. Before you hire any contractor in Connecticut, check the license with the Connecticut Department of Consumer Protection.

What does Gemma Power Systems say about its work?

Safety is a bedrock principle at Gemma and is a vital aspect of our execution model. We hold our subcontractors accountable to our site-specific safety plans, and have consistently performed significantly better than the national average for our indu0.002019

In the company's own words, from gemmapower.com, read October 2026.

Where is Gemma Power Systems located?

Gemma Power Systems is listed in Glastonbury, CT. Its street address is not on record yet.

How big is Gemma Power Systems?

Gemma Power Systems ranks No. 178 on the ENR Top 400 Contractors list for 2026. Engineering News-Record ranks the largest U.S. contractors by construction revenue.

Source: ENR Top 400 Contractors (2026), Engineering News-Record

How do I check Gemma Power Systems's contractor license?

Search the Connecticut Department of Consumer Protection for Gemma Power Systems before you hire. We do not hold license records for individual companies. Connecticut has no single general contractor license. Search by registration type, such as home improvement contractor, new home construction contractor or major contractor.

Check a license in Connecticut

Licensing rules checked October 2026. Requirements change, so confirm on the state site.

What other construction companies are in Glastonbury?

We list 7 construction companies in Glastonbury. Here are 6 more.

All construction companies in Glastonbury
FAQ

Gemma Power Systems: FAQs

Where is Gemma Power Systems located?

Gemma Power Systems is listed in Glastonbury, Connecticut. Its street address is not on record yet.

What does Gemma Power Systems say about its work?

On gemmapower.com, Gemma Power Systems describes itself like this: "Safety is a bedrock principle at Gemma and is a vital aspect of our execution model. We hold our subcontractors accountable to our site-specific safety plans, and have consistently performed significantly better than the national average for our indu0.002019"

How do I contact Gemma Power Systems?

Call (860) 659-0509. Visit gemmapower.com.

How big is Gemma Power Systems?

Gemma Power Systems ranks No. 178 on the ENR Top 400 Contractors list for 2026. Engineering News-Record ranks the largest U.S. contractors by construction revenue.

Is Gemma Power Systems licensed?

We do not hold license records for individual companies. Connecticut has no single general contractor license. Search by registration type, such as home improvement contractor, new home construction contractor or major contractor. Search the Connecticut Department of Consumer Protection to check a contractor before you hire.

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Office locations © OpenStreetMap contributors, available under the Open Database License. Company rankings from the ENR Top 400 Contractors (2026).

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