New Mountain Capital Acquires W2O from Mountaingate Capital

Mountaingate Capital Acquires Walker Sands From Stone-Goff Partners

October 8, 2025

Marketing & Advertising

Mountaingate Capital completed its acquisition of Walker Sands, an integrated B2B growth services agency, from Stone-Goff Partners. The deal establishes Mountaingate’s second platform investment in Mountaingate Fund III and supports Walker Sands’ next phase of growth, including adding capabilities, expanding internationally, and pursuing buy-and-build.

Mountaingate Capital Invests in WTWH Media

January 26, 2023

Media & Entertainment

Denver-based private equity firm Mountaingate Capital completed an investment in WTWH Media, a Cleveland-based B2B digital media and marketing platform. The transaction establishes WTWH as a Mountaingate platform company to accelerate growth organically and through selective strategic acquisitions.

W2O (New Mountain Capital) Acquires Swoop and IPM.ai

January 7, 2021

Data & Analytics

W2O, a portfolio company of New Mountain Capital, has acquired healthcare-focused data and AI companies Swoop and IPM.ai. The deal folds Swoop and IPM.ai into W2O's new health technology business to expand its AI-driven patient analytics, real-world evidence, and audience-targeting capabilities; leadership from the acquired companies will remain with W2O.

W2O Acquires Influencer and Entertainment Agency starpower

October 5, 2020

Marketing & Advertising

W2O has acquired influencer and entertainment marketing agency starpower, integrating the team into W2O’s single, integrated P&L to expand its influencer, celebrity and branded-entertainment capabilities for health, wellness and consumer clients. The starpower leadership will remain in place and will gain access to W2O’s proprietary data models and 1,500-person multidisciplinary team; the deal is part of W2O’s buy-and-build strategy since partnering with New Mountain Capital.

W2O Acquires Elysia Group

September 24, 2020

Healthcare Services

W2O has acquired Elysia Group, a health economics and outcomes research (HEOR) consultancy that operates in the United States and Asia Pacific. The founders of Elysia joined W2O to lead its Health Economics and Real-World Evidence practice and the capability will integrate with W2O's recently acquired Discern Health to expand market access and evidence-generation services.

W2O Acquires Discern Health

July 28, 2020

Healthcare Services

W2O Group has acquired Discern Health, a health economics and outcomes research (HEOR) consulting firm with offices in Baltimore and Washington, D.C. The deal—an add-on to W2O (a portfolio company of New Mountain Capital)—expands W2O's value‑based care, market access, HEOR and health policy capabilities.