Circa alternatives
TL;DR: 12 companies doing similar work to Circa in B2B, ranked by how closely they match what Circa actually does — not just by category.
How this list was built: every company here is Y Combinator-backed and shares at least one category with Circa. They are scored on how closely their own description overlaps with Circa's, and all facts shown come from the YC company records — nothing is estimated.
What are the best alternatives to Circa?
| Alternative | What it does | Batch | Team | Status |
|---|---|---|---|---|
| PetaSales | — | Winter 2009 | 2 | Inactive |
| AdThrow | — | Summer 2009 | — | Inactive |
| Fithub | — | Winter 2010 | — | Inactive |
| Insoshi | — | Winter 2008 | — | Inactive |
| Optilly/Installmonetizer | Fb ad optimization platform | Winter 2012 | 11 | Inactive |
| Locent | Locent is an automated messaging platform for companies | Summer 2015 | 11 | Inactive |
| Avalanche | Referral program SDK for startups | Winter 2019 | 1 | Inactive |
| InEvent | In-Person, Hybrid and Virtual Event Management Software | Summer 2019 | 150 | Active |
| Hive | Marketing automation for event promoters (email, sms, ads, CRM) | Summer 2014 | 65 | Active |
| Laylo | The CRM powering iconic musicians and events | Summer 2020 | 24 | Active |
| Per Diem | The AI operating system for restaurants | Winter 2021 | 25 | Active |
| Mailwarm | Prevents your emails from landing in spam. | Summer 2020 | 10 | Active |
Is Circa still active?
Circa is still operating, so switching is a choice rather than a forced migration. Compare on fit and price rather than urgency.
How was this list put together?
Every company here is Y Combinator-backed and shares at least one category with Circa. They are then ranked on how closely their own description overlaps with Circa's, so the closest matches come first rather than whoever happens to share a tag.