Powering Smarter Deal Discovery: Similarweb Partners with Affinity

We’re excited to announce our collaboration with Affinity, the relationship intelligence platform for dealmakers, on the launch of Affinity Sourcing, a new AI-powered solution designed to change the way investment teams identify and prioritize opportunities.

Affinity Sourcing brings together predictive signals and relationship insights to surface high-potential companies early in their growth trajectory. By integrating Similarweb’s trusted digital signals, the platform delivers investors timely visibility into company momentum, online performance, and emerging market trends.

“Investors today need a clear edge in identifying tomorrow’s market leaders before the rest of the world catches on. By integrating Similarweb’s digital signals into Affinity Sourcing, investment teams gain early, reliable visibility into real-time company momentum, helping them act with speed and conviction. We’re proud to partner with Affinity to make data-driven sourcing faster, smarter, and more accessible.”
Alyssa Lewis, VP Investors at Similarweb

“Affinity Sourcing uses AI to help firms identify companies worth pursuing, weeks or even months ahead of traditional methods. This partnership with Similarweb enables us to incorporate powerful web traffic signals into our sourcing engine, giving our users a more complete picture of company activity and growth potential.”
Ken Fine, CEO of Affinity

Two leaders in their respective fields

The partnership brings together two leaders in their respective fields to unlock greater speed and intelligence for deal teams. Similarweb’s data provides a trusted foundation for decision-making, while Affinity’s platform translates those insights into actionable sourcing opportunities.

Affinity joins a growing roster of OEM clients who rely on Similarweb data for M&A, private equity, and due diligence workflows.

We look forward to continuing to support Affinity’s mission to modernize deal discovery and helping more investment teams act with confidence and clarity.

Stay tuned as we expand our OEM ecosystem and bring the power of digital intelligence to new industries and use cases.

by Yael Klass

VP of Corporate Marketing

Yael, with 10+ years in SaaS and a background in art education, excels in storytelling and international campaigns. She contributes to Forbes and teaches at Reichman University.