25Madison

Co-founder of 25madison with extensive experience in global equity capital markets and industrial financing at Goldman Sachs, and prior background as a manufacturing engineer at General Electric.

Managing partner at SoftBank Capital NY and founder of Seed Capital Partners with substantial experience in early-stage venture capital.

Kirk Posmantur works at 25Madison, where he supports entrepreneurs in building and scaling their business concepts by working directly with founders and brands and connecting them to the firm's global network. His career has centered on connecting people, brands, and platforms to form partnerships.

Founder and publisher of Level Three Labs which produces news and analysis publications, and founder of Debut Inbox, a newsletter discovery platform developed in partnership with CNN.

Steven Price is an entrepreneur who has founded companies in media, telecommunications, and business services, some of which became publicly traded or were acquired. At 25madison he works with the firm's team, board, and portfolio founders to set overall strategy and help build businesses. He is currently focused on opportunities in fintech, healthcare and health services, sustainability, B2B application software, consumer and commerce enablement, and supply chain tech.

Jaja Liao joined 25Madison in February 2022 as an early-stage investor for the 25Madison Ventures Fund. She studied Molecular Biology at Yale and previously worked as an early-stage investor at Headline (formerly e.ventures) in San Francisco, focusing on healthcare, consumer, and SaaS. Her career also includes roles at Google, Clover Health, Rainfall Ventures, and TikTok, where she was the 10th US employee.

Jamie Brown works at 25Madison, where they source, evaluate, and execute investments for Propel and partner with portfolio companies on strategy and operations. Having grown up between Hong Kong and the London suburbs, they have lived and worked across the U.S. and Europe as well as Mexico, and are now based in New York.

Merrill Anovick began his career at Google and earned an MBA from Harvard Business School before joining 25Madison in 2021. He is a General Partner co-leading 25Madison Propel, the firm's Transformation Buyout fund, and works on the firm's company incubation efforts across verticals. He has co-founded several 25Madison incubated companies.

Grant Silow joined 25Madison's founding team in 2018, having previously worked at Camden Partners, Summit Partners, and Radius, an AI software startup. He is a General Partner co-leading 25Madison Propel, the firm's transformation buyout fund, which applies AI transformation resources to lower-middle market services businesses it acquires.

Roy Timor is a technical leader focused on AI productization, with earlier work on the Waze app and at Google DeepMind. He builds and deploys end-to-end AI agents in production, turning complex workflows into automated systems across consumer-scale and compliance-heavy domains.

Venture partner and product leader with experience in security and technology firms Flashpoint and Echosec, prior supply chain role at Apple, and technical background from US Navy service and elite business and engineering education.

Board member of 25madison with private equity and investment banking experience at Apollo and Goldman Sachs, and board positions at Cox Media Group and Rackspace.

Alison McGuire serves as Controller at 25Madison. She previously worked as Finance Manager at Virgin, Director of Financial Planning and Analysis at Imagem, International Accounting Manager at Nook Media, and Senior Associate at KPMG.

Ava Forte joined 25Madison in January 2025, after starting her career at McKinsey. She works on priority initiatives and supports teams across the firm's platform, helping align strategy with execution to back early-stage companies. She previously founded a smoothie cafe at the University of Michigan's business school.

Avery Hill works at 25m Health, supporting incubation and early-stage investments at the intersection of healthcare and technology, collaborating with health systems and entrepreneurs on solutions aimed at improving patient outcomes. Originally from London, they moved to the US for university, spent time in the Bay Area, and relocated to New York in early 2024.

Ben Goldstein began his career at Centerview Partners before joining 25Madison, where he works across investing and business building. His role involves working with founders, researching markets, and helping develop concepts into products.

Calista Reyes is part of 25m Evolve at 25Madison, where she works on early-stage incubations and evaluates potential investment opportunities. She previously worked on the go-to-market team at an early-stage startup and focuses on helping founders define their initial ICP, build go-to-market strategies, and win their first customers.

Charlotte Meyers joined 25Madison in fall 2024, where she focuses on early-stage companies applying AI in underserved or underexplored markets. A New York native, she has previously lived in Nashville and Sydney before returning to the city.

Chi Pham works with founders to develop narratives and user experiences, translating early-stage ideas into concrete strategy and design. She has a background in business and IT, and focuses on the intersection of strategy, technology, and design. Originally from Vietnam, she is now based in New York City.

Cindy Xiong is a member of 25Madison who began her career at Goldman Sachs and later led operations at a health tech startup focused on pediatric autism. At 25Madison she works on building new incubations and evaluating early-stage investments, with a focus on ventures addressing inefficiencies in healthcare.

Connor Smith works at 25madison, where he focuses on Propel, applying AI—including voice interfaces, signal processing, and automation—to lower-middle market companies in legacy industries. He is an engineer whose background spans construction, mechanical systems, and property operations, and he has developed voice-enabled and AI technologies across automotive, consumer tech, and critical infrastructure. He holds over 20 patents in AI, audio processing, voice interfaces, and cloud systems.

David Cabal is a Staff Engineer at 25m Health, where he works to help the firm's incubations reach market faster by building foundational engineering components and supporting teams in delivery. He originally comes from Texas and lives in Tennessee.

Dhruv Vasishtha works with founders building early-stage companies from inception, with a focus on ventures serving high-needs patients and their care providers. He helps startups address capital, customer, and talent challenges, and has spent his career at venture-backed healthcare startups spanning SaaS, AI agents, and value-based tech-enabled services. Born in New Delhi and raised largely in New York City, he now lives in Boston.

Fannie Chen is Chief Operating Officer at 25Madison. She previously served as VP and Deputy General Counsel at Casper, Director of Corporate & Commercial Counsel at Blue Apron, and an associate at Davis Polk & Wardwell. She holds a JD from Columbia Law School and a BA from Stanford University (Phi Beta Kappa), and was a Fulbright Scholar.

Gabby Fonseca is an operations and HR professional at 25madison, where she focuses on building community and streamlining processes for the firm's team and founders. A New Jersey native, she has previously lived in Washington, DC and Madrid, Spain.

Hye Lynn Suh is a visual and interaction designer who works on turning early-stage, complex ideas into intuitive, testable products. Her background spans visual design, creative coding, and product design. Originally from Los Angeles, she has been based in New York since her undergraduate years.

James Pastoressa has a background in family office environments and public accounting, supporting finance and accounting operations across multiple businesses. At 25madison, he supports the firm's platform companies and manages financial operations across the portfolio.

CEO of ClimateHaven and former operational partner at 25madison with experience in legal and regulatory matters at Lyft's micromobility division and corporate development at Citi Bike.

Kat Howley works at 25Madison, where she focuses on incubating new companies in the healthcare sector, working with founders on solutions related to quality, access, and cost of care. Originally from the Washington, DC area, she is now based in New York.

Board member of 25madison and chairman of Centerbridge Partners Europe with principal finance experience at Goldman Sachs and founder of GRP Financial.

Lydia Cheuk has worked at the intersection of law, business, and innovation, advising companies across technology, consumer brands, and media. Her experience includes building legal and business functions from the ground up and supporting early-stage companies as they scale.

Experienced media and entertainment executive who has served as chairman and CEO of major companies including Sony Entertainment, chairman of Snap Inc., and chairman of Warner Music Group.

Ryan Macy works with 25m Health, supporting the firm's incubations and investments on technology. He writes software and focuses on engineering architecture, recruiting engineering talent, and developing developer cultures, drawing on prior experience in health tech, building engineering teams, and launching products.

Sanford Spivey focuses on building companies from scratch, using go-to-market experimentation and narrow-wedge product development, with an interest in overlooked or niche markets where AI-powered software can transform specific workflows. He has worked across hardware, software, and large technology markets throughout his career and has lived in the United States, Mexico, and Australia.

Tan K. Torun is Canadian and Turkish and has lived in Istanbul, Montreal, and the U.S. During college he built and later exited a company in out-of-home (OOH) assets and digital signage, and afterward led venture operations at Elevate Members in Los Angeles, where he sourced and supported startups, structured SPVs, and helped build a platform for alternative investors. At 25Madison he focuses on incubating, validating, and scaling B2B startups in compliance-heavy or operationally intense areas such as supply chain, real estate, and industrials.

Tom Kenny joined 25Madison in February 2022 after starting his career at Jefferies. At the firm, he evaluates investment opportunities and helps build new businesses in the early-stage ecosystem.

Walt Winslow joined 25m Health in 2023, where he focuses on incubating early-stage healthcare businesses and works closely with founders to develop solutions aimed at patient impact. He was raised in rural North Carolina and has worked in Atlanta, New York, Palo Alto, and Chicago.

Matt Fremont-Smith works at 25Madison, where he focuses on developing the firm's team and capabilities and building it into an operating platform for creating businesses. He works with founders and helps the firm's incubated startups get organized and scale. He grew up outside Boston and spent his career in NYC and Asia.