In December 2025, Bain Capital and Mubadala Investment Company completed the acquisition of Service Logic from Leonard Green & Partners — a sponsor-to-sponsor transaction involving one of the largest commercial HVAC service platforms in North America. Service Logic operates from more than 140 locations with over 5,000 technicians, making it one of the most significant commercial HVAC services businesses not listed on a public exchange.
The transaction received less industry coverage than the Blackstone-Champions Group deal ($2.5 billion, February 2026) and the Goldman Sachs-Sila Services deal (~$1.5 billion, 2025) — but it is as consequential for the commercial HVAC market as those residential deals are for the consumer segment. Service Logic is a mission-critical commercial platform; its scale, customer base, and operating model represent what the commercial HVAC services consolidation endgame looks like.
Who Is Service Logic?
Service Logic is a national provider of commercial HVAC and mechanical services, focusing on mission-critical customers across healthcare, education, data centres, government, and institutional facilities. The company operates through a decentralised model with strong local brand identity in each market — similar to the approach used by Comfort Systems USA — while providing the capital, technology, and shared services infrastructure of a national platform.
Key platform characteristics:
• 140+ locations across the United States
• 5,000+ technicians serving commercial and institutional customers
• Mission-critical focus: healthcare, data centres, education, government — customers who cannot afford HVAC failure
• Strong service contract base providing recurring revenue
• Active acquisition programme: Service Logic acquired Caswell Mechanical and Caswell Schena Electric in Boston in 2024, and HVAC, Incorporated of Milwaukie, Oregon — described at acquisition as the largest privately held HVAC mechanical services company in North America
Service Logic, a national commercial HVAC platform with 140+ locations and 5,000+ technicians, was acquired by Bain Capital and Mubadala Investment Company from Leonard Green & Partners in December 2025 — one of the largest commercial HVAC services sponsor-to-sponsor transactions in industry history.
Bain Capital and Mubadala's Strategic Thesis
Bain Capital and Mubadala together bring a specific combination of capabilities to Service Logic. Bain Capital is one of the world's leading private equity firms with deep operational improvement expertise — the firm that pioneered many of the value creation methodologies that PE applies to services businesses. Mubadala is Abu Dhabi's sovereign wealth fund, a patient capital provider that brings long-term investment perspective and access to capital markets and relationships across global infrastructure and technology.
The combination suggests a specific investment strategy for Service Logic: Bain's operational expertise to drive margin improvement, efficiency, and acquisition integration capability, combined with Mubadala's patient capital and global relationships to support an extended growth programme that builds Service Logic into the dominant national commercial HVAC platform over a multi-year horizon.
Mubadala's involvement in this transaction is particularly significant because the same firm co-invested with KKR in CoolIT Systems — which was just sold to Ecolab for $4.75 billion at 15 times equity in two years. Mubadala understands the data centre cooling opportunity from both the equipment side (CoolIT) and now from the services side (Service Logic). That dual positioning in the data centre HVAC supply chain is deliberate.
What Service Logic's Scale Means for Competitors
Service Logic at 140 locations and 5,000 technicians is larger than most publicly traded mechanical contractors. Comfort Systems USA — the largest publicly traded commercial mechanical and electrical services company — has approximately 9,000 employees across its subsidiary network. Service Logic is roughly half that scale but entirely focused on HVAC services (no electrical), which means its HVAC-specific footprint is substantial.
Under Bain Capital's ownership, Service Logic will likely accelerate its acquisition programme — adding smaller commercial HVAC service companies in new geographies and filling coverage gaps in existing markets. Every independent commercial HVAC service business in Service Logic's target markets is a potential acquisition candidate.
Frequently Asked Questions
Who are Service Logic's new owners?
Bain Capital and Mubadala Investment Company acquired Service Logic from Leonard Green & Partners in December 2025. Bain Capital is a leading global private equity firm with deep operational improvement expertise. Mubadala is Abu Dhabi's sovereign wealth fund, which also co-invested alongside KKR in CoolIT Systems prior to its $4.75 billion sale to Ecolab.
How big is Service Logic?
Service Logic operates from more than 140 locations across the United States with over 5,000 technicians serving commercial and institutional customers including healthcare facilities, data centres, educational institutions, and government buildings.
Why did Bain Capital and Mubadala acquire Service Logic?
The acquisition combines Bain Capital's operational improvement expertise with Mubadala's patient capital to build Service Logic into the dominant national commercial HVAC platform — leveraging strong mission-critical customer relationships, recurring service contract revenue, and the data centre cooling demand wave that is generating above-market commercial HVAC growth.
