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PestCo Holdings expands footprint in Houston, Tex. market

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December 15, 2025

LOGO: PESTCO
LOGO: PESTCO

PestCo Holdings, LLC, a growth-oriented, national provider of pest control services to residential and commercial customers and a Thompson Street Capital Partners (TSCP) portfolio company, has acquired Houston, Tex.-based Southwest Exterminating (Southwest). This acquisition represents a strategic expansion in the Houston market, one of the fastest-growing cities in the U.S. Additional terms of the transaction were not disclosed.

“We are excited to expand our presence in the great state of Texas and specifically in the Houston market with the addition of Southwest Exterminating. We will strive to earn the loyalty of these customers while expanding opportunities to our Team Members,” said Jay Keating, CEO of PestCo, in a news release.

Nick and Susan Spillios, owners of Southwest Exterminating, added, “Southwest Exterminating has been a huge part of our lives and the lives of so many great people in the greater Houston area. Since our founding in 1969, the Spillios family built something we’re truly proud of, grounded in integrity, service and a commitment to doing right by our team and our customers. As we begin this new chapter with PestCo, we’re confident we’ve found the right partner to carry that legacy forward. Their values align with ours and we know they’ll continue to take care of the people and the communities we’ve worked so hard to serve.”

“Thompson Street is pleased to support PestCo’s continued expansion in Texas through the acquisition of Southwest, a well-established provider in the region,” said Dan Cooper, managing director at TSCP.

About Thompson Street Capital Partners

St. Louis, Mo.-based Thompson Street Capital Partners is a middle-market private equity firm that helps transform already exceptional businesses into market leaders. TSCP invests globally in the life sciences and healthcare, software and technology, business and consumer services and products sectors. TSCP partners with management teams to increase value by accelerating growth, both organically and via complementary acquisitions.

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RJ is the digital media specialist for PMP magazine. He can be reached at rsimon@northcoastmedia.net or (216) 675-6001.

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