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Warburg, Martis, MKH Capital eye substance use care assets; Outpatient radiology demand drives Kain Capital’s investment in RadX

Reported by PE Hub
Jun 5, 2026· 2 min read
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Key Takeaways
  • • Major private equity firms—Warburg Pincus, Martis Capital, and MKH Capital—are actively targeting substance use disorder (SUD) care assets, signaling sustained institutional appetite for the behavioral health and addiction treatment sector.
  • • Kain Capital has invested in RadX, an outpatient radiology platform, capitalizing on growing demand for decentralized diagnostic imaging services outside traditional hospital settings.
  • • The dual focus on SUD care and outpatient radiology reflects broader PE investment trends toward fragmented, high-margin healthcare subsectors with favorable demographic tailwinds and reimbursement environments.
Summary
Private equity capital continues to flow into specialized healthcare segments, with multiple institutional investors positioning for exposure to substance use disorder treatment and outpatient diagnostic imaging. According to PE Hub, firms including Warburg Pincus, Martis Capital, and MKH Capital are evaluating acquisition targets within the SUD care ecosystem, reflecting confidence in the sector's growth trajectory and operational scalability.

The substance use disorder treatment sector has emerged as an attractive investment category for large-cap PE sponsors due to several structural factors: fragmented provider landscapes offering consolidation opportunities, favorable reimbursement dynamics, recurring patient populations, and alignment with public health priorities. These characteristics typically support strong cash flow generation and valuation multiples in the PE market.

Simultaneously, Kain Capital's investment in RadX demonstrates parallel PE momentum in outpatient diagnostic imaging. The radiology sector has experienced significant transformation as providers and payers increasingly shift diagnostic procedures from hospital-based settings to lower-cost independent facilities. Outpatient radiology platforms benefit from operational leverage, improved unit economics, and growing utilization demand, making them appealing to growth-oriented investors.

Both sectors exemplify PE's broader healthcare strategy: targeting subsegments with favorable supply-demand imbalances, demonstrated revenue visibility, and opportunities to enhance operational efficiency through platform consolidation and technology integration. The timing of these investments aligns with post-pandemic stabilization in healthcare utilization patterns and improved capital availability for healthcare-focused sponsors.

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Sources

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AlphaMaven summarised this story from the reporting below. Each link opens the original article.

PE Hub Warburg, Martis, MKH Capital eye substance use care assets; Outpatient radiology demand drives Kain Capital’s investment in RadX