Insights

Growing User Base SidelineSwap has attracted over 1.5 million athletes and small businesses since 2015, indicating a robust and engaged community actively buying and selling sporting gear, creating ample opportunity for upselling premium services or exclusive listings.

Strategic Partnerships Recent collaborations with DICK'S Sporting Goods and Seel Inc. demonstrate a commitment to expanding recommerce capabilities and offering return assurance, providing avenues to develop joint marketing campaigns and cross-promotional sales efforts.

Market Expansion Potential With a recent partnership with DICK'S Sporting Goods to extend its services nationwide, SidelineSwap is poised for increased market penetration, opening opportunities to offer tailored solutions for larger retail partners or white-label resale platforms.

Technology Adoption Utilizing advanced tech stacks like Ruby, Cloudflare, and Open Graph indicates a modern, scalable infrastructure that can support integration with enterprise systems, creating prospects for selling enterprise solutions or API services.

Funding & Growth Having raised $12.5M and securing strategic investments from eBay Ventures signals strong financial backing, facilitating expansion plans, new feature development, and targeted outreach to sports retailers and brands seeking resale platform solutions.

SidelineSwap Tech Stack

SidelineSwap uses 8 technology products and services including Quantcast Measure, Facebook Pixel, Cloudflare, and more. Explore SidelineSwap's tech stack below.

  • Quantcast Measure
    Analytics
  • Facebook Pixel
    Analytics
  • Cloudflare
    Content Management System
  • Open Graph
    Content Management System
  • Lightbox
    Javascript Libraries
  • Prism
    Javascript Libraries
  • Ruby
    Programming Languages
  • iOS
    Programming Languages

Media & News

SidelineSwap's Email Address Formats

SidelineSwap uses at least 1 format(s):
SidelineSwap Email FormatsExamplePercentage
First@sidelineswap.comJohn@sidelineswap.com
53%
First.Last@sidelineswap.comJohn.Doe@sidelineswap.com
25%
Last@sidelineswap.comDoe@sidelineswap.com
22%

Frequently Asked Questions

Where is SidelineSwap's headquarters located?

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SidelineSwap's main headquarters is located at 52 Roland Street Boston, Massachusetts United States. The company has employees across 3 continents, including North AmericaEuropeSouth America.

What is SidelineSwap's phone number?

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You can contact SidelineSwap's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is SidelineSwap's official website and social media links?

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SidelineSwap's official website is sidelineswap.com and has social profiles on LinkedInCrunchbase.

What is SidelineSwap's NAICS code?

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SidelineSwap's NAICS code is 5415 - Computer Systems Design and Related Services.

How many employees does SidelineSwap have currently?

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As of April 2026, SidelineSwap has approximately 61 employees across 3 continents, including North AmericaEuropeSouth America. Key team members include Coo / Cfo: A. G.Chief Technology Officer, Founding Team: E. C.Vp Of Engineering: M. S. J.. Explore SidelineSwap's employee directory with LeadIQ.

What industry does SidelineSwap belong to?

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SidelineSwap operates in the Technology, Information and Internet industry.

What technology does SidelineSwap use?

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SidelineSwap's tech stack includes Quantcast MeasureFacebook PixelCloudflareOpen GraphLightboxPrismRubyiOS.

What is SidelineSwap's email format?

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SidelineSwap's email format typically follows the pattern of First@sidelineswap.com. Find more SidelineSwap email formats with LeadIQ.

When was SidelineSwap founded?

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SidelineSwap was founded in 2014.

SidelineSwap

Technology, Information and InternetMassachusetts, United States51-200 Employees

SidelineSwap makes it easy for athletes, fans and sports families to buy and sell their gear online. Since launching the marketplace in 2015, more than 1.5M athletes have joined SidelineSwap and listed more than $1B worth of gear for sale.

Our mission is to equip athletes to be their best. 

We offer customers the best selection of inventory, at the best prices, with easy access content, generated by a community of experts, so that they can confidently make their next purchase and perform at their best.  

And we empower every athlete, parent, coach, and small business to sell. Whether they're just clearing out last season’s gear, looking for a way to keep product on the field and out of a landfill, or building a sporting goods business, we’re here to deliver the best selling experience in sports.

Our team is based in Charlestown, MA. We value growth mindsets, trust, scrappiness, leading from everywhere, and a passion for delivering amazing customer experiences. 

Interested in joining us? Keep an eye out for opportunities @ sidelineswap.com/about

Section iconCompany Overview

Headquarters
52 Roland Street Boston, Massachusetts United States
Phone number
NAICS Code
5415 - Computer Systems Design and Related Services
Founded
2014
Employees
51-200

Section iconFunding & Financials

  • $25M$50M

    SidelineSwap's revenue is estimated to be in the range of $25M$50M

Section iconFunding & Financials

  • $25M$50M

    SidelineSwap's revenue is estimated to be in the range of $25M$50M

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