impact.com

impact.com is a leading partnership management platform focused on affiliate, influencer and referral programs with strong performance marketing tools. It excels at large-scale tracking and fraud prevention but lacks PartnerStack's native co-sell pipeline features and B2B SaaS-specific marketplace of 115k partners. Pricing is typically higher for enterprise with more customization overhead, making it suitable for brands needing broad channel management rather than streamlined SaaS ecosystem growth.