TL;DR: If you are replacing Proxis, the closest options are Operand, Holy Grail, Plutis. The table below compares 12 alternatives on what they do, stage, size and status.
Every alternative below is compared on what it actually does, not just its category — so you can see which one genuinely replaces Proxis (YC Summer 2024).
Last verified:
The three closest alternatives to Proxis are:
| Alternative | What it does | Stage | Team | Status |
|---|---|---|---|---|
| Operand | — | YC Winter 2025 | 8 | Active |
| Holy Grail | — | YC Summer 2019 | 7 | Active |
| Plutis | — | YC Winter 2023 | 2 | Active |
| Snapboard | — | YC Winter 2020 | 2 | Inactive |
| Demospace | — | YC Winter 2023 | 2 | Inactive |
| Hey Healthcare | — | YC Summer 2019 | 1 | Inactive |
| Insoshi | — | YC Winter 2008 | — | Inactive |
| Post.fm | New email inbox. | YC Summer 2010 | — | Inactive |
| Thinkature | — | YC Summer 2006 | — | Inactive |
| Acunote | — | YC Winter 2011 | — | Active |
| Trelium | The Agent to Build Your Agents | YC Fall 2025 | 6 | Active |
| Emailio | Email built for wellness | YC Winter 2014 | 5 | Active |
It depends on your size. Operand is the closest match on what Proxis actually does. If you need something more established, sort the table by team size — larger teams generally mean more support and a longer track record. If budget is the constraint, the earlier-batch companies are usually the ones still competing on price.
Proxis is still operating, so switching is a choice rather than a forced migration. Compare on fit and price rather than urgency.
Every company here is Y Combinator-backed and was matched to Proxis on what it actually does — its own description of its product — rather than on a broad category label. Batch, team size and operating status come from the YC directory and are shown as-is. We do not rank by payment.
Looking to save on B2B tools? Browse our vetted lifetime SaaS deals from verified vendors.
Built by LemStudio
Loading interactive view…