AI Firm Long Tail Secures Eir Partners Investment to Cut Hospital Denials

CHICAGO, IL – April 01, 2026 – Long Tail, a healthcare technology startup using artificial intelligence to modernize hospital administration, announced today it has secured a substantial strategic investment from Eir Partners Capital. The Chicago-based company, founded in 2023, aims to tackle one of the most persistent financial drains on the U.S. healthcare system: claim denials and utilization management complexity.

The investment from Eir Partners, a private equity firm focused on healthcare technology, will fuel Long Tail’s efforts to expand its AI-native software platform, grow its proprietary data network, and scale its market presence to meet rising demand from hospitals and health systems. While the financial terms of the deal were not disclosed, Eir Partners typically makes equity investments ranging from $40 million to $150 million, signaling a significant capital injection for the young company.

“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.”

The Billion-Dollar Burden of Denials

The partnership arrives at a critical moment for U.S. healthcare providers. Hospitals are facing immense financial pressure from a complex and often opaque system of payer rules that leads to a staggering volume of denied claims. Industry research reveals a grim financial picture: U.S. hospitals lose over $262 billion annually from denied claims, an overwhelming 90% of which are considered preventable.

Recent data underscores the escalating nature of the problem. Providers reported an average initial claim denial rate of 11.65% in 2025, meaning more than one in every nine claims is rejected upon first submission. For some organizations, that rate climbs above 15%. The administrative cost of this friction is immense, with estimates placing the cost to rework a single denied claim anywhere from $25 to over $100. Compounding the issue, a staggering 65% of these denied claims are never resubmitted, translating directly into lost revenue.

This administrative labyrinth, centered on utilization management (UM) and physician advisory services, places a heavy burden on clinical staff, contributing to physician burnout and diverting resources away from patient care. Many of the processes and technologies currently used to navigate these challenges are decades old and ill-equipped to handle the dynamic complexity of modern healthcare reimbursement.

AI as the New Frontline in Revenue Cycle Management

Long Tail is positioning itself as a modern solution to this entrenched problem. The company’s platform is described as "AI-native," designed specifically to address the root causes of claim denials. By pairing proprietary payer intelligence with AI-powered automation, the software helps hospitals anticipate and prevent denials before they happen.

The system harnesses insights from a growing network of providers and physicians, creating a feedback loop that continuously refines its understanding of unpublished payer rules and denial patterns. This data-driven approach provides healthcare organizations with actionable intelligence to improve reimbursement, streamline workflows for denials and appeals, and reduce the operational costs associated with their UM programs.

Long Tail's strategy aligns with a major industry shift toward leveraging AI in revenue cycle management (RCM). Faced with shrinking margins and persistent staffing shortages, healthcare executives are increasingly turning to technology. A recent HIMSS report found that 86% of health systems have already begun implementing AI, with 63% specifically applying it to RCM workflows. The potential return is significant, with some analyses suggesting AI can slash the cost-to-collect by 30-60% and boost clean claim rates to 95% or higher.

A Strategic Bet on a Category Leader

For Eir Partners, the investment in Long Tail represents a strategic bet on a company poised to disrupt a large and underserved market. The Miami-based firm, which recently closed a $1 billion fund dedicated to healthcare technology, has a track record of identifying and scaling companies that solve critical industry pain points.

Brett Carlson, Founder and Chief Executive Officer of Eir Partners, highlighted the market opportunity in the announcement. “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,” he stated. “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.”

Carlson’s comments reflect a growing consensus among investors that the administrative and financial functions of healthcare are ripe for technological transformation. By backing Long Tail, Eir Partners is not just investing in a single product but in a new model for managing the financial relationship between providers and payers—one built on data, automation, and predictive intelligence.

Modernizing Healthcare's Financial Backbone

The infusion of capital is set to accelerate Long Tail's mission to bring transparency and efficiency to a notoriously convoluted process. The company plans to invest heavily in continued product innovation, further enhancing the predictive capabilities of its AI engine. A key priority will be the expansion of its proprietary data network, which is central to generating the unique payer insights that differentiate its platform.

As Long Tail scales its go-to-market capabilities, more hospitals and health systems will gain access to tools designed to alleviate administrative drag. This allows providers to recapture billions in lost revenue and, more importantly, refocus their human resources on the core mission of delivering high-quality patient care. The partnership between Long Tail’s technological vision and Eir Partners’ operational expertise aims to create a new standard for how healthcare organizations manage their financial health in an increasingly complex environment.