Kirk Posmantur
InvestorChief Partnership Officer, Board Member, Founder at 25Madison Β· Chairman of the Board at Black Mountain Investment Group
Flatiron, NYC and Del Mar, CA (bicoastal)
About
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.
Invests in
AI & Machine LearningConsumerEnterprise SoftwareHealthtechSaaS
Experience
- Axcess WorldwideFounder & CEOcurrent1999 β presentNew York City Metropolitan Area
- 25madisonCo-Foundercurrent2018 β presentNew York City Metropolitan Area
- Forbes Travel GuideBoard Membercurrent2011 β present
- CaptivateBoard Membercurrent2013 β present
- Andalusian Private CapitalSenior Deal Partnercurrent2024 β present
- Omni Viking Lakes HotelAsset Managercurrent2020 β present
- BiltSenior Advisorcurrent2025 β present
- FlexjetSenior Advisorcurrent2013 β present
- Bloom EnergySenior Advisorcurrent2023 β present
- Spurs Sports & EntertainmentSenior Advisorcurrent2021 β present
- Chicago BearsSenior Advisorcurrent2023 β present
- ICON YachtsSenior Advisorcurrent2026 β present
- Diriyah Company l Ψ΄Ψ±ΩΨ© Ψ§ΩΨ―Ψ±ΨΉΩΨ©Senior Advisorcurrent2023 β present
- Atlanta HawksLimited Partner2014 β 2017
- NetJetsStrategic Advisor to Chairman1999 β 2008
- Cendant CorporationExecutive Vice President1993 β 1999
- American Hotel & Lodging AssociationVice President Corporate Relations1988 β 1993
- American Hotel & Lodging AssociationDirector of Member Relations1985 β 1988
Education
- University of Nevada-Las VegasBachelor's degree, William F. Harrah College of Hotel Management1990 β 1994
Same school
Also attended University of Nevada-Las Vegas10
James CarterSr. Staff Scientist & Lab Manager at The Innovation SpaceMichiel BakkerAdvisor at 1st Course CapitalPatrick OlsonPortfolio Manager at VTF CapitalChristopher CalicottManaging Director at Trammell Venture Partners (TVP)Duncan PoeVice President, Corporate Development at CleansparkJoni McMillanVice President, Corporate Operations at Cleanspark
+ 4 more
Shared employers
Also worked at Bloom Energy13
Alex MoteyVenture Fellow at Augment VenturesMatt EggersManaging Director at Prelude VenturesPeter GrossAdvisor, Managing Partner of PMG Associates; Former Founder and CEO of EYP Mission Critical Facilities at Overture ClimateGinny MillerPartner at 1Sharpe VenturesMarie ThompsonPartner at PowerhouseNisha HollaResearch Fellow at 3one4 Capital
+ 7 more
Also worked at NetJets2
Deals Β· 1
Skylark Travel GroupBoard seat
via 25Madison Β· filed Oct 2024 Β· $1.6M raise
Attribution from SEC filings, press coverage, and firm rosters.
Colleagues at 25Madison
Aaron Sobel
Board Member, Partner (Apollo Private Equity), Board Member (Cox Media Group), Board Member (Rackspace) at 25Madison
Alison McGuire
Controller at 25Madison
Anna Vardanyan
Executive Assistant & Office Manager at 25Madison
Ava Forte
Chief of Staff at 25Madison
Avery Hill
Associate at 25Madison
Ben Goldstein
Associate at 25Madison
Bobby Tuohy
Director of Product (Flashpoint), Venture Partner (First In Ventures), Head of Product (Echosec) at 25Madison
Calista Reyes
Associate at 25Madison






















