Clean ClAImsFirst Pass

Adonis alternatives

4 other Denials & Appeals vendors, ordered by how they stack up on our scorecard (maturity, backing, proof, implementation, security). Facts from public sources; judgments are ours.

Why buyers look beyond Adonis: It augments your RCM team rather than replacing it; you still need billers, unlike full-service RCM vendors.
  1. Complex claims and denials recovery for hospitals

    Pick Aspirion if you're a hospital with denials, MVA, workers' comp, or VA claims you can't work in-house and you'd rather pay only from what gets recovered.

    Contingency (pay from recoveries)Tech-enabled serviceEnterprise systems
  2. AI-generated appeals for denied health insurance claims

    Pick Claimable if patients or one-off denials need fast, cheap, evidence-backed appeals with zero procurement.

    Per-transaction / per-chartAI copilotSmall practicesEnterprise systems
  3. AI biller that works denials by phone and portal

    Pick Amperos if denials and aging A/R are piling up and you want an AI biller chasing claims from day one with no setup project.

    Not publishedAutonomous agentsSmall practicesMid-size groupsBilling companies
  4. AI-generated clinical appeals for denied claims

    Pick Crosby Health if clinical denials are piling up unworked and you want appeals generated and submitted automatically while paying only from what gets recovered.

    Contingency (pay from recoveries)Autonomous agentsMid-size groupsEnterprise systems

Evaluating Denials & Appeals vendors?

First Pass tracks this market every week: funding, launches, and what changed since this page was written.