Key facts
- PremiStar’s last known valuation is $1.0B (Aug 2021).
- It has raised $1.4B; the latest was Debt - General ($100.0M) in Nov 2025.
- Notable investors include Partners Group.
- Status: Privately Held (backing).
Investors
1- ·The complete investor list — 1 names
- ·Watchlist + deal alerts for PremiStar
- ·The full record, as it builds
Funding rounds
No funding rounds for PremiStar are on record yet — either the company hasn't raised institutional capital, or the raise hasn't surfaced in our sources.
About PremiStar
Provider of commercial heating, ventilation and air conditioning (HVAC) services for commercial, industrial and municipal buildings. The company offers heating, ventilation and air conditioning (HVAC) services, mechanical building automation, controls and energy services, enabling customers to reduce maintenance costs, optimize asset performance and improve energy efficiency to create healthier and cost-effective environments.
- Sector
- Business Products and Services (B2B)
- HQ
- Deerfield, IL, United States
- Founded
- 1930
- Employees
- 2,800
- Website
- premistar.com/
- Ownership
- Privately Held (backing)
PremiStar doesn't have a composite mark yet — a PA Mark is published once enough pricing inputs exist (trade prints, fund marks, round prices). The rest of the record below builds toward it.
Recorded secondary trades
No secondary trades in PremiStar shares have been recorded yet. When a print lands — third-party, direct report, or platform — it appears here with structure, source, and price.
Institutional fund marks
No SEC-registered fund has reported a fair-value mark on PremiStar in its N-PORT filings yet. We sweep new filings monthly.