Camber

Camber builds revenue-cycle infrastructure for specialty-care providers, automating the insurance-claims lifecycle — eligibility checks, claim creation, pre-submission scrubbing, denial management, appeals and payment posting — for clinics in applied behavior analysis (ABA), physical therapy, speech-language pathology and ENT/allergy. Its rules engine is trained on more than $2.5B in real claims data across its provider network, so each denial produces a payer-specific rule that improves subsequent claims, with human insurance specialists handling escalations and edge cases. The company was founded in 2021 as Juniper (Y Combinator Winter 2021), grew out of an ABA clinic run as a proof of concept, and rebranded to Camber in 2025. It came out of stealth in February 2025 alongside a $30M Series B led by Andreessen Horowitz, disclosing $50M raised to date, 90,000 patients billed for across 42 states, roughly $2B in annual billables under management and a 93% first-pass paid rate. It reports 500+ providers served and a 95%+ first-pass paid rate as of 2026, and has said it intends to expand into home health, long-term care and substance-use-disorder care.