TL;DR: If you are replacing Sandbox Banking, the closest options are Prospa, Tally, Pesto. 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 Sandbox Banking (YC Winter 2017).
Last verified:
The three closest alternatives to Sandbox Banking are:
| Alternative | What it does | Stage | Team | Status |
|---|---|---|---|---|
| Prospa | Banking for businesses | YC Winter 2021 | 70 | Active |
| Tally | — | YC Winter 2025 | 2 | Active |
| Pesto | — | YC Winter 2021 | 8 | Active |
| Laminate | — | YC Winter 2023 | — | Active |
| Increase | API-first banking for ambitious technology companies. | YC Summer 2020 | 15 | Active |
| Duplo | Venmo for B2B in Africa | YC Winter 2022 | 13 | Active |
| Parker | Parker is a digital bank. | YC Winter 2019 | 10 | Inactive |
| Satchel | — | YC Summer 2018 | 8 | Inactive |
| Zeal | Modern payroll for modern work | YC Summer 2019 | 45 | Active |
| Proof Trading | Institutional equities broker-dealer | YC Summer 2019 | 7 | Active |
| Debteye | Automate credit counseling. | YC Summer 2011 | 2 | Acquired |
| Y Combinator | Make something people want. | YC Unspecified | 100 | Active |
It depends on your size. Prospa is the closest match on what Sandbox Banking 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.
Sandbox Banking has been acquired, which often means pricing, roadmap or support changes. That is the usual reason people start looking at this list.
Every company here is Y Combinator-backed and was matched to Sandbox Banking 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.
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