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ALTARIS, LLC

ALTARIS, LLC is a Series C+ and buyout fund in the US and Western Europe writing $75M–$750M checks into Healthcare, life-sciences, pharmaceutical, provider-services, non-reimbursement-healthcare, diagnostics, biotechnology and medical-devices.

Stages
Series C+, buyout
Sectors
Healthcare, life-sciences, pharmaceutical, provider-services, non-reimbursement-healthcare, diagnostics, biotechnology, medical-devices
Check size
$75M–$750M
Invests in
US-wide, Western Europe
Round role
Leads rounds
Actively investing
Yes
Founded
2003
Assets under management
$10 billion

Thesis

Altaris, LLC is a private equity firm founded in 2003 and headquartered in New York City, with an exclusive focus on the healthcare industry. Their investment thesis centers on acquiring and building healthcare companies that deliver innovation and efficiency, aiming to improve patient access and outcomes. They leverage healthcare spending growth, an aging population, technological innovation, and regulatory barriers. Altaris invests in companies manufacturing products or providing services within the life sciences/pharmaceutical, provider services, and non-reimbursement healthcare sectors. Their transaction types include buyouts, growth capital, carve-outs, corporate partnerships, take-privates, and investments in family/founder-owned businesses. As of June 2025, their AUM was $10 billion. For Altaris Health Partners VI, L.P., equity checks ranged from $75 million to $750 million. While some sources indicate smaller check sizes ($100K-$5M), the primary focus appears to be on larger control investments. They mostly lead investment rounds.

Common questions

Does ALTARIS, LLC invest at the Series C+ stage?

Yes. ALTARIS, LLC lists Series C+ and buyout among the stages it invests in.

What check size does ALTARIS, LLC write?

ALTARIS, LLC writes $75M–$750M checks.

Where does ALTARIS, LLC invest?

ALTARIS, LLC invests in the US and Western Europe.

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