New investment will help to accelerate Long Tail’s leadership in AI-native health system utilization management and physician advisory
CHICAGO–(BUSINESS WIRE)–Long Tail (the “Company”), a leading provider of AI-native software and services for utilization management, physician advisory and denials and appeals workflows across hospitals, medical centers and health systems, today announced it has received a strategic investment from Eir Partners Capital (“Eir Partners” or the “Firm”). Terms of the transaction were not disclosed.
Since its founding in 2023, Long Tail has set out to modernize how hospitals and health systems navigate payer complexity. The Company targets utilization management, one of the most consequential and overlooked drivers of high-cost claim denials, via a data-driven platform that pairs proprietary payer intelligence with AI-powered automation. By harnessing insights from a growing network of providers and physicians, Long Tail delivers actionable payer intelligence that improves reimbursement outcomes, streamlines denial workflows, and reduces the cost of utilization and physician advisor programs.
The new investment from Eir Partners will play an integral role in further supporting the Company’s continued product innovation, expansion of its proprietary data network and scaling of its go-to-market capabilities to meet growing demand across health systems.
“We are thrilled to partner with Eir Partners and view their investment as a powerful endorsement of our vision, strategy and market leadership,” said Jeff Means, Chief Executive Officer and Co-Founder of Long Tail. “Their extensive expertise in healthcare technology and proven operator-led approach make them the ideal partner for our Company as we continue delivering measurable value to our customers. We are looking forward to a successful partnership.”
“Utilization management and physician advisory remains a complex and under tapped market with limited technology yet enormous impact on the financial viability of health systems. We have been searching for a partner to build a category leader in this space and believe that Long Tail will solve for the market’s needs during an accelerated growth period with our partnership. Jeff, Chris, Austin and team have built the foundation for an enormously impactful company for this next phase,” said Brett Carlson, Founder and Chief Executive Officer of Eir Partners.
About Long Tail
Long Tail’s technology-enabled services improve operational efficiency of healthcare operations. We help providers uncover the unpublished payor rules impacting their revenue to reduce initial denials and improve recovery of clinical denials. For more information, please visit www.longtailhealth.com.
About Eir Partners Capital
Eir Partners Capital is a Miami-based private equity company focused on healthcare technology and tech-enabled services. Founded in 2015, Eir has partnered with entrepreneurs and management teams to create scaled, strategically differentiated platforms across payer, provider, employer, and pharma technology sectors. The Firm’s hands-on approach combines operational insight with deep industry relationships to drive long-term value. Targeted stages of investment include growth equity through control buyouts and equity check sizes range from $40 – $150 million or larger with co-investments. For more information, please visit our website at www.eirpartners.com or our LinkedIn page.
Contacts
Long Tail
[email protected]
Eir Partners Capital
Elizabeth Edwards
[email protected]

