Aspire

Aspire is one of the best-known influencer marketing platforms, built since 2013 by a San Francisco team (formerly known as AspireIQ). It connects brands with social media content creators and serves both sides: brands look for creators for paid campaigns, while creators find collaborations that actually make sense. It's mainly for creators who want to partner with e-commerce and lifestyle brands and earn fairly from their influence.

It works simply: on the way in, you build a profile and connect your social accounts; on the way out, you apply to campaigns in the Creator Marketplace, where brands post their requirements. Aspire pulls data straight from Instagram, TikTok and Pinterest, so brands see the real results of your content and measure reach, clicks and sales. Once you agree, you get a brief, create the content, have it approved and get paid.