# Adam Fish

> Adam Fish is the Atlanta-based CEO and co-founder of Ditto, an edge-sync software company whose database lets devices exchange and reconcile data even when cloud connectivity fails. A self-taught developer with a biology degree and an MBA, Fish moved from a short-lived medical-school path to founding mobile CRM company Roobiq, leading product at mobile database company Realm, and starting Ditto with Max Alexander in 2018. Ditto has since raised $136 million, worked across aviation, restaurants and defense, and made Fish's long-running interest in offline software into an enterprise infrastructure business.

- **Role:** CEO and Co-Founder at Ditto
- **Organizations:** Ditto, Realm, Roobiq
- **Nationality:** American
- **Education:** Bachelor's degree in Biology, University of Southern California, Master of Business Administration; began a dual MD/MBA program and left the medical program after one year, University of Louisville
- **Known for:** Co-founded Ditto in 2018 and grew it into an edge-sync company serving aviation, restaurant and public-sector use cases., Helped Ditto raise $136 million across seed, Series A and Series B financing rounds., Named inventor on U.S. patent 11,962,503 B1, Edge Synchronization Platform, issued April 16, 2024.

## Career timeline

- **Late 1990s** — Began building web projects and experimenting with software while young.
- **2004-2008** — Studied biology at the University of Southern California and captained the men's crew team in his junior and senior years.
- **2008-2011** — Entered the University of Louisville's dual MD/MBA track, left medical school after one year, and completed an MBA in 2011.
- **2011-2014** — Co-founded Roobiq, a mobile-first CRM designed to work offline through a data-sync engine.
- **2014-2017** — Worked at Realm and became VP of Product, helping shape its mobile database and synchronization products.
- **2018** — Co-founded Ditto with Max Alexander and began building its peer-to-peer edge-sync platform.
- **2021** — Ditto raised a $9 million seed round.
- **2022** — Ditto announced an indefinite-delivery contract with the U.S. Air Force carrying a ceiling of $950 million.
- **2023** — Ditto raised a $45 million Series A and announced its role in Chick-fil-A's rebuilt point-of-sale system.
- **2024** — Fish was named as an inventor on U.S. patent 11,962,503 for an edge synchronization platform.
- **2025** — Ditto raised an $82 million Series B at a reported $462 million post-money valuation and expanded its Atlanta presence.
- **2026** — Fish described an eight-year journey from coding Ditto in his apartment to gathering roughly 120 teammates for a New Orleans company offsite.

## Achievements

- Co-founded Ditto in 2018 and grew it into an edge-sync company serving aviation, restaurant and public-sector use cases.
- Helped Ditto raise $136 million across seed, Series A and Series B financing rounds.
- Named inventor on U.S. patent 11,962,503 B1, Edge Synchronization Platform, issued April 16, 2024.
- Named inventor on U.S. patent 10,931,753, Landing page redirect with synchronized mini-servers, issued February 23, 2021.
- Led product at Realm before its acquisition by MongoDB.
- Captained the USC men's crew team during his junior and senior years and received academic honors including USC Renaissance Scholar recognition and a Presidential Scholarship.

## Latest updates

- **2026-04** — Ditto's blog listed new technical posts by Fish, including a guide to building a local LLM wiki and a tutorial on a peer-to-peer SwiftUI game.
- **2026-04** — Fish reflected on nearly eight years of Ditto, describing a New Orleans offsite where roughly 120 teammates joined a Second Line parade.
- **2025-11** — An Engage founder profile covered Fish's move to Atlanta, Ditto's participation in Engage Cohort 15, and the introduction of a product called Forge.
- **2025-06** — Fish appeared on the localfirst.fm podcast to discuss Ditto's origin, Realm, mesh networking and local-first software.
- **2025-03** — Ditto announced an $82 million Series B led by Top Tier Capital Partners and Acrew Capital.

## Links

- Website: https://www.ditto.com
- LinkedIn: https://www.linkedin.com/in/adamfish24
- Twitter/X: https://x.com/Adam_Fish
- GitHub: https://github.com/bigfish24
- YouTube: https://www.youtube.com/@localfirstfm

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Profile page: https://yespress.io/adam-fish
Published by YesPress — https://yespress.io
Last updated: 2026-08-22