Insights

Strategic partnerships SidelineSwap has established or pursued strategic partnerships with major retailers and platforms, including Dick's Sporting Goods and eBay Ventures, signaling openness to recommerce collaborations and co-branded selling opportunities that sales teams can leverage to expand reseller channels.

Recommerce expansion The company launched a Recommerce Platform and has coresignaled services to retailers and brands, creating a clear path for B2B collaborations such as trade-in programs, refurbished inventory routes, and wholesale partnerships.

Marketplace scale With over 1.5 million athletes listing more than $1B in gear, SidelineSwap represents a large, engaged user base and a high-volume marketplace that can be monetized through seller services, premium listings, and targeted advertising.

Funding momentum Active financing rounds including a $12.5M raise and strategic investments from eBay Ventures indicate strong investor support and willingness to back growth initiatives, enabling sales teams to position enterprise-grade solutions and expanded services.

Customer risk tools Recent initiatives like Return Assurance in partnership with Seel demonstrate a focus on buyer/seller trust and risk mitigation, presenting opportunities to offer warranty, protection plans, and embedded assurance services to improve conversion and basket size.

SidelineSwap Tech Stack

SidelineSwap uses 8 technology products and services including Comscore, iCIMS, Ghost, and more. Explore SidelineSwap's tech stack below.

  • Comscore
    Analytics
  • iCIMS
    Applicant Tracking Systems
  • Ghost
    Content Management System
  • SQL
    Database
  • dc.js
    Javascript Graphics
  • Lightbox
    Javascript Libraries
  • Node.js
    Programming Languages
  • Ruby
    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 June 2026, SidelineSwap has approximately 59 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 ComscoreiCIMSGhostSQLdc.jsLightboxNode.jsRuby.

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 operates an online marketplace that facilitates buying and selling sports gear. The platform serves athletes, fans and sports families, offering access to a broad inventory of new and used equipment. Since its 2015 launch, more than 1.5 million athletes have joined the platform and listed more than $1 billion in gear.

The company is based in the Boston area, with its team centered in Charlestown, Massachusetts, and operates within the technology, information and internet sector. Recent partnerships include a 2024 agreement with Dick's Sporting Goods to extend recommerce services nationwide, and a 2025 collaboration with Seel to offer Return Assurance on used gear.

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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