# Paul Copplestone, Founder > Paul Copplestone, Founder. 2 investments on record. The rounds they were named in and the filings that name them, each with its source. Source: https://millionrounds.com/person/paul-copplestone (Millionrounds; every figure on the page links to its filing or article) US · Founder # Paul Copplestone Founder Latest rounds - **AgentMail** Seed · $6M Mar 2026 - **Mem0** Series A · $20M Oct 2025 Backs *Developer Tools* *AI* *Open Source* *Martech* Profile summary - **Rounds named:** 2 last Mar 2026 - **Filings:** 1 with regulators - **Podcasts:** 2 +1 mentions What this record rests on - ✓ **Named in rounds** 2 rounds name them - ✓ **On filings** 1 filing with a regulator - **Linked to a firm** No firm on record - **Claimed** Not claimed yet Titles come from filings their firm signed. [Correct or remove](https://millionrounds.com/corrections?person=paul-copplestone)[Is this you? Claim it](https://millionrounds.com/claim?person=paul-copplestone) ## Rounds they were named in - **Rounds:** 2 - **Led:** 0 - **Disclosed:** $26M - **Active:** 2025–26 2026 - [AgentMail](https://millionrounds.com/company/agentmail) *Seed* **$6M** *US* Mar 2026 Joined · +6 investors 2025 - [Mem0](https://millionrounds.com/company/mem0) *Series A* **$20M** *US* Oct 2025 Joined · +14 investors By stage - Seed **1** - Series A **1** What they backed Developer Tools **2** AI **2** Open Source **1** Martech **1** Alongside - [Dharmesh Shah *2*](https://millionrounds.com/fund/hubspot-ventures) - [Y Combinator *2*](https://millionrounds.com/fund/y-combinator) - [Basis Set Ventures *1*](https://millionrounds.com/fund/basis-set-ventures) - [Brian Balfour *1*](https://millionrounds.com/fund/brian-balfour) - [General Catalyst *1*](https://millionrounds.com/fund/general-catalyst) - [GitHub Fund *1*](https://millionrounds.com/fund/github-fund) - [James Hawkins *1*](https://millionrounds.com/fund/james-hawkins) - [Jennifer Taylor *1*](https://millionrounds.com/fund/jennifer-taylor) Rounds where a report named this person rather than a firm, matched on name: read it as a strong hint, not proof, since people share names. ## Companies they are listed as backing Portfolio - [QuestDB](https://millionrounds.com/startup/questdb) ## Where they are named on record Filings - SEC Form D · Company raising **Supabase, Inc.** Executive Officer, Director on 2 filings · since 2021 Each row is a document a firm filed with a regulator: somebody signed it, and it carries a date. ## Hear them before you pitch them - [In Depth](https://millionrounds.com/podcasts/in-depth) · 25 Jun 2026 · 60 min How Supabase became the essential infrastructure for the AI era | Paul Copplestone (Co-founder, CEO) With [Paul Copplestone](https://millionrounds.com/person/paul-copplestone) About this episode In this episode of In Depth, Brett sits down with Paul Copplestone, co-founder and CEO of Supabase, the open-source Postgres platform now serving more than seven million developers. Before Supabase, Paul launched a Thumbtack-style marketplace in Southeast Asia and co-founded an office-management… Listen on Apple Podcasts - [Term Sheet](https://millionrounds.com/podcasts/term-sheet) · 24 Sept 2025 · 33 min The “Egoless” Company Culture that Powers Supabase with CEO Paul Copplestone With [Paul Copplestone](https://millionrounds.com/person/paul-copplestone) Mentions [New Zealand](https://millionrounds.com/person/new-zealand-link-business-franchising) About this episode Paul Copplestone is the CEO and Co-founder of Supabase, the open source Postgres development platform designed for web and mobile apps to scale quickly. The company knows a thing or two about growing fast – only 5 years old, this April they raised $200 million in Series D funding round and were… Listen on Apple Podcasts ### Mentioned in Episodes that name Paul Copplestone in their description, which is not the same as being on them. - [Equity](https://millionrounds.com/podcasts/equity) · 28 Nov 2025 · 30 min Supabase CEO on the "painful" decisions that built a $5B company Mentions [Paul Copplestone](https://millionrounds.com/person/paul-copplestone) About this episode Vibe coding has taken the tech industry by storm, and it's not just the Lovables and Replits of the world that are winning. The startups building the infrastructure behind them are cashing in too. Supabase, the open-source database platform that's become the backend of choice for the vibe-coding… Listen on Apple Podcasts Episodes of [the shows we follow](https://millionrounds.com/podcasts), matched by name. Not them? [Tell us](https://millionrounds.com/corrections?person=paul-copplestone). ## Find people like Paul Filter every partner and angel by firm, kind, market and whether we watched them invest. Free with an account. Search people[How we know what we know](https://millionrounds.com/methodology)