Grant Silow

Managing Director
  • Corporate development/venture investing, LinkedIn
  • Sales/go-to-market, Radius Intelligence
  • Growth equity investing, Summit Partners
  • Growth equity investing, Camden Partners
  • Yale School of Management (MBA)
  • Johns Hopkins University (BA, International Studies)

I joined 25madison in April 2018 as an MBA intern. I spend most of my time working on our incubated startups and finding the white space in areas we care about. I also love connecting with entrepreneurs and anybody else who’s thinking about solving big problems in a unique way.


I’m originally from Philadelphia but lived in Baltimore, San Francisco and New Haven before moving to New York. I love Philadelphia sports, dogs, traveling, and nerding out about public policy. 


Work with us

Building businesses is in our DNA. We’re a small but mighty team of tinkerers, designers, geeks (the cool kind), operators, business moguls and everything in between. Wildly strategic, yet so deep into it that we’ve got the scars to prove it.

Whether it's with the 25m Studio, 25madison Ventures,  25m Health, or 25m Create, we’re looking for great people who love their work, solving problems, and having fun. Jerks need not apply.