Knock
Infrastructure for sending product and customer messaging.
25 employees · est. 2021 · New York, United States
ProcessOne
Since 2002, ProcessOne has been developing large-scale messaging platforms, driving the largest services worldwide.
8 employees · est. 1999 · Paris, France
ProcessOne is the older company (2021 vs 1999); Knock is the larger of the two.
Side-by-Side Comparison
| Metric | Knock | ProcessOne |
|---|---|---|
| Founded | ||
| Founded | 2021 | 1999 older |
| Headquarters | ||
| Headquarters | New York, United States | Paris, France |
| Employees | ||
| Employees | 25 larger | 8 |
| Industry | ||
| Industry | Not tracked yet | Messaging |
| Funding Stage | ||
| Funding Stage | Series A | Not tracked yet |
| Total Funding | ||
| Total Funding | $18.00M | Not tracked yet |
| Funding Rounds | ||
| Funding Rounds | 2 | Not tracked yet |
| Services | ||
| Services | Messaging Workflows, Template Management, Preference Centers, Observability and Analytics | Not tracked yet |
| Target Customers | ||
| Target Customers | Product-Led Teams, Developers, Marketing Operations Teams, Growth and Product Teams | Not tracked yet |
| Taxonomy | ||
| Taxonomy | Customer Messaging Infrastructure, Product Notifications, Cross-channel Notifications, Lifecycle Messaging, Growth And Retention, Product And Engineering Teams, Notification Systems, SaaS Messaging Solutions, Communication Infrastructure | Real-time Messaging, Instant Messaging, Push Notifications, Mobile Applications, Web Services, XMPP, Erlang, Push Services, Social Messaging, Application Development, Messaging Server, Distributed Systems, Elixir |
| Website | ||
| Website | knock.app | process-one.net |
About Knock
Knock, founded in 2021, positions itself as a pivotal player in the messaging infrastructure sector. The company’s core offering enables cross-channel product notifications and lifecycle messaging, aiming to boost engagement, growth, and retention. With its headquarters in the United States, Knock o...
About ProcessOne
ProcessOne is a French startup founded in 1999 with a focus on messaging technologies. The company's slogan "ProcessOne makes your products and services realtime, going from innovation to production in record time" reflects its commitment to delivering real-time solutions quickly. ProcessOne special...
We will tell you when either one moves
BounceWatch watches Knock and ProcessOne for new funding, fast hiring, new executives and a change of software vendor. When one happens, we email you the same day.
Funding, hiring, leadership and stack changes at Knock and ProcessOne — by email.
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Compiled from the BounceWatch company index. We last looked at Knock on 20 Mar 2026, and ProcessOne on 13 Sep 2024. Where a field is blank here, it means we have not recorded it — not that the answer is zero. How we source and date this.