ENDEAVOR FIRE PROTECTION ACQUIRES HIGH SIERRA FIRE PROTECTION EXPANDING ITS SERVICE CAPABILITIES INTO NEVADA AND CALIFORNIA

ENDEAVOR FIRE PROTECTION ACQUIRES HIGH SIERRA FIRE PROTECTION EXPANDING ITS SERVICE CAPABILITIES INTO NEVADA AND CALIFORNIA

Nov 6, 2026 | 2026

Boston, MA - August 1, 2023 - Endeavor Fire Protection ("Endeavor"), a platform company of the investment firm Bear Castle Capital ("Bear Castle"), has acquired High Sierra Fire Protection ("High Sierra"). Endeavor is a market-leading specialty contractor for a wide array of fire protection and safety needs. At present, Endeavor serves a diverse customer base across seven states in the Midwest and the Western United States.

Founded in 2018, High Sierra installs, services, and repairs fire suppression systems throughout Nevada and California. The Company services diverse end markets including data center, industrial manufacturing, commercial, municipality, and healthcare customers, among others.

"High Sierra has brought its outstanding workforce and leadership into our family of companies," said Robert B. Lane, Co-Founder & Managing Partner of Bear Castle and Founder & Chief Executive Officer of Endeavor. "The Company has consistently demonstrated elite operational execution and has a remarkable reputation in one of the fastest growing industrial markets in the nation. Our entire team at Endeavor is extremely proud that High Sierra has decided to partner with us in their journey to become one of the largest fire and life safety operators in the region."

"Choosing to join the Endeavor team was an easy decision for us, especially given the strong cultural fit, safety emphasis and commitment to training," said Ron Honea, President of High Sierra. "We believe this partnership will enhance our commitment to and investment in our people and allow us to better serve our customers and communities. We feel confident in a bright future together."

"The most important consideration for us in choosing to join Endeavor is that they share our core values of safety, integrity and performance," said Jim Sallaberry, Head of Fabrication & Procurement of High Sierra. "We believe that our partnership with Endeavor will enable us to enhance our commitment and investment in our people and to better serve our customers, our communities and to continue our history of delivering complex services in the nonresidential sector."

Steve Shaffer, Endeavor's Chairman and Senior Advisor to Bear Castle, added, "We are excited to announce the closing of the High Sierra acquisition, extending our family of companies and lines of business into the Western United States. We are confident that this will be a strong partnership."

Endeavor is actively seeking to invest in fire and life safety companies across the United States. The company is people-focused and strives to be the employer of choice in every market in which it operates.

K&L Gates served as legal advisor to Endeavor.

About Endeavor Fire Protection

Endeavor Fire Protection ("Endeavor") is a new fire protection and life safety platform. Endeavor offers installation, service and repair services for fire sprinkler and plumbing systems. Endeavor invests heavily in providing best-in-class training and industry-competitive benefits for its employees and delivering high-quality service to its customers. Endeavor is rapidly expanding its national footprint.

About Bear Castle Capital

Bear Castle Capital ("Bear Castle") is the leading private building industry-focused private investment firm. Founded by Robert B. Lane and Jennifer F. Fish in 2022, Bear Castle is building America by investing in innovation and empowering industry entrepreneurs as they work to solve the building needs of our changing world.