Cello
Cello is an AI-powered referral platform designed for B2B SaaS companies. Founded in 2022 and headquartered in Munich, Germany, Cello aims to enhance customer acquisition, retention, and expansion by enabling users to share products they love.
Proven Score (provisional)
Emerging. Based on Proven marketplace listings, member redemption clicks, years in business, market standing, verified clients and connected data, scaled to 100. Client quality (20 points) is added once publicly named clients are verified. Checked 2026-10-21.
Company facts
| Founded | 2022 (4 years) |
| Latest funding | Seed |
| Employees | 62 |
| Headquarters | United States |
| Trusted networks on Proven | 4 investor, bank and government networks offer Cello to their members |
| Member offers on Proven | 1 |
| Member redemption clicks | 3 |
Company facts from Apollo.io company data. Network, offer and redemption data from the Proven platform. A Proven Score is published once publicly named clients are verified with sources.
Discounts for Proven network members
50% off for 12 months after leaving the Free tier & free GTM assessment
Members redeem through their investor or bank's Proven marketplace. Terms vary by network.
Competitors in Advertising & growth
Source: Proven platform data, public records and vendor websites. Vendors cannot pay to change a score. Methodology. Updated 2026-10-21.