Our Team

Marketing Partner

Kate Castle

As Marketing Partner, Kate leads all of Flybridge’s marketing, communications and investor relations’ initiatives.  In addition, she works with the firm’s portfolio companies to provide both strategic and hands-on marketing support throughout their growth. Kate is also a co-founder of and operating partner in XFactor Ventures, a Flybridge community fund focused on investing in female founders.

Prior to joining the firm in May 2005, Kate served in marketing and public relations roles at Battery Ventures, Cisco Systems, Sangate Systems and Porter Novelli. She also served as a volunteer with the United States Peace Corps teaching English as a Second language at a high school in Gabon, Africa.

Kate currently serves as a Pod Leader for the Parity Partners P3 program, a mentor to entrepreneurs participating in the TechStars Boston program and to high school students participating in the Boston BUILD program. She previously sat on the board of the MIT Enterprise Forum of Cambridge. She holds a BA in Anthropology from Wheaton College in Norton, MA where she graduated cum laude and was a Wheaton Fellow.


  • 5

    Continents lived on

  • 30K

    Photos taken

  • 32+M

    Steps walked in the past 6 years

Chocolate Lab


Chief Lick Officer, Whistle activity fan, therapy dog, co-pilot on roads trips, water addict and occasional troublemaker whose motto is “eat, play, swim and love.”

  • 145

    Minutes of activity per day

  • 30

    States visited...so far

  • 100+

    Kisses given per day