By: Steven Price and Grant Silow

In April 2021, 25madison welcomed Martin Aguinis on board as an Entrepreneur-in-Residence. 25madison has been building startups since 2018, and we have several models: In many cases, we’ve started with a white space, built an MVP, and then partnered with a Founding CEO to launch the company. In other cases, we’ve co-founded early-stage companies. Here, we’ll back a phenomenal entrepreneur who has an idea for a company, which we work together to test, validate and build.

Martin is a serial entrepreneur. He started multiple companies during college and has not stopped post-graduation. Martin got…

By: Grant Silow

Today, we’re excited to announce our six summer interns at 25madison. This is our fourth year in business and our fourth year bringing on interns. The program has been a reliable source of full-time team members (Nate Rosen, Merrill Anovick, myself), founders (Noah Gray, CEO of Onda), and introductions to EIRs and companies (Morgan, a Summer 2021 intern, introduced us to EIR Martin Aguinis before she even started!).

MBA Interns

If you caught the first edition of this story last month, you already know our favorite tools for Workflow Management and Research. We’re building on that lineup and dishing out our Marketing and Creative tool essentials.

Spoiler alert: if you’re looking for a start-up starter pack, Webflow and Figma top our list as must-haves.

By: The Studio Team at 25madison


ActiveCampaign: Goldilocks email platform

When it comes to email marketing platforms, we’ve tried them all. Mailchimp, Sendgrid, ExactTarget, Responsys, ActiveCampaign and more. While they all have their ideal targets, our favorite for startups is ActiveCampaign. It’s the Goldilocks of marketing…

Investors include Apollo Global Management and Endeavor

NEW YORK, April 29, 2021 – 25madison, a leading venture studio and incubator, today announced that it has closed on its latest funding round. Apollo Global Management, Inc. (NYSE: APO), the global alternative investment manager, Endeavor and a number of prominent high net worth individuals and family offices are among investors backing the venture studio’s focus on building early-stage companies.

With $60 million of capital raised to date, 25madison is well positioned to execute on its mandate to build and invest in early stage companies. Built by founders who have run successful companies…

Spoiler alert: Slack and are our must haves

By: The Studio Team at 25madison

In the words of our CEO Steven Price, “instant gratification isn’t fast enough.” In our early-stage world, speed and efficiency are paramount. To that end, our digital toolset is critical to enable fast communication, learning, development, creation, and deployment. Over the years, we’ve tested out dozens of digital tools, ultimately landing on the below run-down of our must-haves for workflow management and research (keep an eye out for future articles on our favorite creation and marketing tools). But we’re always searching for new tools, or new ways to use old tools. So please reach…

A year ago, we closed down the 25madison office in response to Covid-19. At the time, we had no idea how long it would be before we saw each other again. The last year has brought challenges, learnings, and unexpected benefits that impact our team and the businesses we help build. We’ve shared some of our learnings below.

By Grant Silow

1. Culture Matters

When we put together our first betting pool on return-to-office dates, nobody had a prediction further out than Memorial Day 2020. Even that two and a half month stretch seemed like it would pose serious risks to our cohesion…

New York, NY: 25madison promotes Matt Berberian to Head of Studio, effective immediately. Berberian, who has served as the company’s VP of Design and Development since 2019, will continue to lend his creative edge to the active direction of 25madison’s incubation cohorts, and further develop its design, testing and process capabilities. Berberian will form part of 25madison’s leadership team alongside CEO Steven Price, President Matt Fremont-Smith, COO Justine Lee and newly appointed Chief Partnership Officer Kirk Posmantur.

“Matt leads our incubation process, and I’m excited to see his impact on our next cohort of businesses,” says Steven Price, CEO of…

New York, NY: 25madison, a New York-based venture studio, today announced the promotion of Justine Lee to Chief Operating Officer. Lee, who has served as the company’s General Counsel and Chief Impact Officer since 2019, will retain oversight of legal affairs and impact strategy while adding business and operating responsibilities.

“We are excited about this enhancement to our management team as 25madison expands into its next phase of growth. Justine is an extremely talented executive who is equally comfortable leading investments, navigating legal issues, and running operations,” says Steven Price, CEO of 25madison. “We are thrilled that Justine will help…

New York, NY: 25madison, an NYC-based venture studio, announced today that Keith Cowing, the former VP of Product at Flatiron Health, has been named CEO of its latest incubation, which is expected to launch in early-2021. The company’s mission is to provide aging in place solutions so that families and individuals can live their greatest years in the homes they love.

Cowing previously served as VP of Product at Flatiron Health, where he helped drive the company to its $2B acquisition by Roche. Cowing is no stranger to startups. He is a Venture Partner at NextGen Venture Partners and was…

Following a flood of entries, 5 finalists were selected, and a winner awarded $10,000.

By Samantha Eisler

This summer, 25madison teamed up with our cohort of Harvard Business School interns to create the 25madison pitch competition, open to all startups whose founding team includes at least one Harvard graduate student or a recent Harvard graduate. The top five finalists are receiving free pitch coaching sponsored by the Women in Investing Club, in the form of office hours with 25madison leaders, and AWS credits and support. …


25madison is an NYC-based venture studio, incubating companies from the ground up and investing in early-stage companies. Learn more at

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