
Self-Managed
Boston Siege Football Club is a amateur soccer league that competes in the nationally recognized UPSL league. Boston Siege Football Club is run by Boston Siege Sports which includes Boston Siege FC and it's various affiliates one of which is the brand new Sevilla FC Soccer Academy - Boston backed by Spanish Soccer Giants from Seville, Sevilla FC.
New to athlete partnerships? See how sports sponsorship works on OpenSponsorship.
Brands can sponsor Boston Siege FC on OpenSponsorship by creating a free account, browsing Boston Siege FC's profile, and sending a sponsorship proposal for social posts, appearances, or integrated campaigns. OpenSponsorship handles messaging, deliverables, and deal terms in one platform so you can connect directly with this team.
Boston Siege FC is listed on OpenSponsorship and available for brand sponsorships. Brands can review campaign packages, audience details, and pricing on this profile, then submit a proposal to start a partnership with this team.
According to OpenSponsorship, Boston Siege FC's audience includes based in Boston, Massachusetts, United States. Brands can use this profile to evaluate reach, content niche, and sponsorship fit before sending a proposal.

Genisys Credit Union, headquartered in Auburn Hills, Michigan, has done something most brands never do with athlete sponsorship: it kept renewing. What started as a single partnership with Detroit Lions tight end Sam LaPorta has become a multi-year, two-athlete program that Genisys has renewed and expanded every season since 2024, adding Lions wide receiver Isaac TeSlaa in 2025 and renewing him again in 2026.
October 6, 2026