# Legence > The largest pure-play building performance platform in the United States. Publicly traded on NASDAQ (LGN). A Blackstone portfolio company. ## About Legence is an Energy Transition Accelerator that provides engineering, consulting, installation, and maintenance services for mission-critical and high-performance facilities. With 20+ subsidiary brands and thousands of employees, Legence delivers vertically integrated building performance solutions across the full lifecycle — from design and construction through ongoing operations and sustainability. Founded on over a century of combined expertise, Legence was formed as a platform by Blackstone in 2020, rebranded from Therma Holdings in 2022, and went public on NASDAQ (ticker: LGN) in 2025. ## Parent Company - Blackstone (majority shareholder) - NASDAQ: LGN - Investor Relations: https://investors.wearelegence.com ## Industries Served - Data Centers - Semiconductors & Precision Manufacturing - Life Sciences - Healthcare - Education - Public Sector & Government - Commercial Real Estate ## Services - Engineering & Design: MEP engineering, energy modeling, sustainability consulting - Program & Project Management: construction management, commissioning, owner's representation - Installation & Fabrication: HVAC, electrical, plumbing, fire protection, controls - Maintenance & Service: preventive maintenance, 24/7 emergency service, building automation - Corporate Sustainability: ESG strategy, decarbonization, energy optimization, green certifications ## Subsidiary Companies Legence operates through 20+ specialized brands including: - RE Tech Advisors — sustainability consulting & ESG strategy - Gilbert Mechanical — commercial HVAC, plumbing & fire protection (Minneapolis) - VarcoMac — electrical construction & fire protection - Black Bear Energy — commercial solar & clean energy - Provident Energy — energy consulting & utility management - CMTA — engineering & technology - Therma — mechanical services (California) - P2S — engineering & commissioning - Bel-Aire Mechanical — mechanical contracting - Bowers + Kubota — engineering (acquired 2024) - And others ## Differentiators - Largest pure-play building performance platform in the US - Vertically integrated: engineering, construction, maintenance, and sustainability under one platform - 110+ years of combined heritage across subsidiary brands - Blackstone-backed with significant M&A capabilities - Publicly traded (NASDAQ: LGN) — financial transparency and accountability - Cross-subsidiary collaboration enables solutions no single company can deliver alone - Mission-critical facility expertise (data centers, healthcare, life sciences) ## Website - Homepage: https://www.wearelegence.com/ - About: https://www.wearelegence.com/about - Our Companies: https://www.wearelegence.com/our-brands - Careers: https://www.wearelegence.com/careers - Media: https://www.wearelegence.com/media - Insights: https://www.wearelegence.com/insights - Corporate Sustainability: https://www.wearelegence.com/corporate-sustainability - Contact: https://www.wearelegence.com/contact-us - Investor Relations: https://investors.wearelegence.com ## Contact - Website: https://www.wearelegence.com - LinkedIn: https://www.linkedin.com/company/wearelegence - YouTube: https://www.youtube.com/@WeAreLegence