About us

SidelineSwap connects athletes so they can buy, sell, and learn about new and used sports gear. We were founded in 2012 by former college athletes who realized how difficult it was to find high-quality used sports gear online. Since launching the marketplace, hundreds of thousands of athletes have joined our community and contributed to our mission of making sports more affordable.

On SidelineSwap you’ll not only find the largest collection of high-quality new and used sports gear on the internet, you will also connect with athletes who know about gear and love their sport. If you browse long enough, you might even find a few pros.

We’re entrepreneurs at heart, and we’re proud to empower our community of sellers. Sellers on SidelineSwap come in all shapes and sizes, from high school athletes selling last season’s gear, to former college players unloading a career’s worth of equipment, to business owners like Eric (see below) who make a living on SidelineSwap.

We’re backed by Global Founders Capital, Riverpark Ventures, Fullstack Sports Ventures, Teamworthy Ventures, FJ Labs, and 500 Startups, and our advisors include former executives from Amazon, Etsy, Seamless, Staples, and ESPN. We’re alumni of 500 Startups, MassChallenge, and the Harvard Innovation Lab.

How this dad makes $100,000 a year with a side gig selling used equipment online

Eric Fanelli shares his incredible story

Our team

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Brendan Candon
CEO
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Eric Carlstrom
CTO
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Anthony Piazza
Business Development
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Conor McDonough
Growth
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Nick Gantsoudes
Community
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Meaghan Latella
Social Marketing Coordinator
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Pin-Bo Tsai
Product + UX / UI Designer
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Nick Allevato
Front-end Developer
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Kevin Guiltinan
Business
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Pat Candon
Business Development
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Jake Keller
Talent
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Owen Moy
Video Content Editor
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Julia Blake
Intern
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Cortland Begor
Intern

Our Investors

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Global Founders Capital
Investor
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Haystack Partners
Investor
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Riverpark Ventures
Investor
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Fullstack Sports Ventures
Investor
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500 Startups
Investor

Perks & Benefits

  • Strong benefits package including medical and dental
  • Free Gym Membership
  • Free parking, and convenient access to the MBTA at Sullivan Square
  • Dog-friendly Office
  • Monthly Team Outings and Lunch Weekly
  • Pet Insurance

Join us

Current openings

Android Engineer
  • Boston, United States
Lead DevOps Engineer
Engineering
  • Charlestown, United States
Head of Product
Engineering
  • Charlestown, United States
Customer Success Manager
Customer Service
  • Charlestown, United States
Growth Marketing Manager
Marketing
  • Boston, United States
Lead Front End Engineer
Engineering
  • Charlestown, United States
Growth Engineer
Engineering
  • Boston, United States