Great Southwestern Construction

$24.0M revenue • 120 employees • 1100 Topeka Way, Castle Rock, CO, 80109, United States

Last Updated Sep 2, 2026

Company Overview

Company Name

Great Southwestern Construction

Address

1100 Topeka Way, Castle Rock, CO, 80109, United States

Website

gswc.us

Approx. Annual Revenue

$24.0M

Employees

120

Established

2003

Google Reviews

4.8 (5 reviews)

Locations

4

About Great Southwestern Construction

Great Southwestern Construction is an electrical contractor based in Castle Rock, Colorado, with approximately 506 employees. Established in 2003, the company provides a range of electrical construction services, including transmission, distribution, substation, and clean energy facilities, to utilities, municipalities, government entities, and private developers across the United States.

Business Profile

Read from the Great Southwestern Construction website on Oct 13, 2026. Hover an item to see the exact wording it came from.

How Great Southwestern Construction works

About the website

Website quality (AI-assessed)
8/10 · Current copyright 2026; Detailed project portfolio
Footer copyright year
2026

Great Southwestern Construction locations

4 Google Business Profile listings.

LocationGoogle categoryReviewsStatus
1100 Topeka Way, Castle Rock, COprimary— 4.8 (5)Claimed
1035 Pendale Rd, El Paso, TX——Claimed
4632 I-35W, Alvarado, TX— 2.8 (26)Claimed
1909 Garden City Hwy, Midland, TX— 5.0 (1)Claimed

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Frequently Asked Questions about Great Southwestern Construction

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Social Profiles

Key Decision Makers

Brandon Lark President
Jim Wells Procurement Manager
LinkedIn