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MongoDB, Inc.

Founders

Who Founded MongoDB?

Dwight Merriman, Eliot Horowitz, Kevin Ryan · Founded 2007 · HQ today: New York, New York, United States

Who founded MongoDB?

MongoDB was founded by Dwight Merriman, Eliot Horowitz, Kevin Ryan in 2007. It is now led by Chirantan "CJ" Desai.

Founders
Dwight Merriman, Eliot Horowitz, Kevin Ryan
Founded
2007
Headquarters
New York, New York, United States
Number of founders
3
Current CEO
Chirantan "CJ" Desai (since 2025)
Where was MongoDB founded?
MongoDB was founded in New York, New York in 2007.
When was MongoDB founded?
MongoDB was founded in 2007.
Who started MongoDB?
MongoDB was founded by Dwight Merriman, Eliot Horowitz and Kevin Ryan.
How old is MongoDB?
MongoDB is 19 years old as of 2026.

Founding Story

Dwight Merriman and Kevin Ryan, DoubleClick's co-founder/CTO and former CEO, and Eliot Horowitz, who had worked with Merriman at ShopWiki, founded 10gen in 2007 to build a cloud application platform. The database they built for that platform proved more useful than the platform itself, so 10gen open-sourced MongoDB in 2009 and renamed itself MongoDB, Inc. in 2013.

Dwight Merriman

Co-founder 2007

Background

Co-founder and former CTO of DoubleClick, where he helped build ad-serving systems at very high volume.

Role at MongoDB, Inc.

Dwight Merriman co-founded 10gen (now MongoDB) in 2007 after scaling problems with relational databases at DoubleClick shaped his view of how application data should be stored. He served as MongoDB's early CEO and later chairman, and also co-founded Business Insider and Gilt Groupe with Kevin Ryan.

Dwight Merriman was born in 1968 in New York City. Education: Miami University.

Merriman was born on August 5, 1968. He co-founded DoubleClick with Kevin O'Connor and was its chief technology officer for 10 years. He was previously chairman of MongoDB and sits on its board.

Eliot Horowitz

Co-founder 2007

Background

Software engineer and tech entrepreneur.

Role at MongoDB, Inc.

Eliot Horowitz co-founded MongoDB (originally 10gen) in 2007. Frustrated by the severe limitations of traditional relational databases (like MySQL) when attempting to build highly scalable web applications, he helped architect a completely new 'document-based' database model. He served as Chief Technology Officer for over a decade, building MongoDB into the absolute default database for modern cloud applications.

Eliot Horowitz was born in 1981. Education: Brown University.

Horowitz was chief technology officer of MongoDB. He later founded the robotics software company Viam, where he is chief executive.

Kevin Ryan

Co-founder 2007

Background

Former CEO of DoubleClick and a serial New York founder through his AlleyCorp firm.

Role at MongoDB, Inc.

Kevin Ryan co-founded 10gen in 2007 alongside Merriman and Horowitz, contributing business leadership and early company-building experience. He has co-founded several other New York companies, including Business Insider, Gilt Groupe, and Zola.

Education: Yale University; INSEAD; Trumbull College.

Kevin P. Ryan was an executive at DoubleClick from 1996 to 2005. He co-founded the venture firm AlleyCorp in 2008, through which he also started Gilt Groupe and Business Insider. (Exact birth year remains publicly undisclosed).

MongoDB, Inc.: CEO & Leadership History

Full timeline →

Chirantan "CJ" Desai

President and Chief Executive Officer

2025 – Present

In his first full quarters, revenue growth accelerated to 30% in Q2 fiscal 2027 and MongoDB reported three consecutive quarters of positive GAAP EPS.

Mike Berry

Chief Financial Officer

2025 – Present

Has highlighted operating leverage, with non-GAAP operating margin reaching 24% in Q2 fiscal 2027.

Dev Ittycheria

Former President and Chief Executive Officer

2014 – 2025

Grew MongoDB from an open-source project into a company with $2.0B of fiscal 2025 revenue, with Atlas becoming the main revenue engine.

Keep researching MongoDB

Who Founded MongoDB? FAQ

Who were the three co-founders of 10gen / MongoDB in 2007?

MongoDB was founded in 2007 in New York City by Dwight Merriman (lead software architect), Eliot Horowitz (CTO and lead database engineer), and Kevin Ryan (serial entrepreneur and business chairman), who had previously built DoubleClick into a digital advertising giant.

What was the founding frustration at DoubleClick that led to MongoDB's creation?

At DoubleClick, the founders served billions of ad impressions daily and constantly struggled with relational databases (Oracle and SQL Server). Every time they needed to add a new tracking field or scale traffic, they had to rebuild relational tables, shard databases manually, and endure downtime, prompting them to build an entirely new kind of database.

What was 10gen's original vision as a Platform-as-a-Service (PaaS)?

In 2007, 10gen was originally conceived as an open-source cloud application stack (similar to Google App Engine) called Babble. However, the founders realized that the open-source document database component they created to store application data was far more valuable than the platform itself, spinning out MongoDB as a standalone project in 2009.

Who was Eliot Horowitz and what was his role as foundational CTO?

Eliot Horowitz served as MongoDB's Chief Technology Officer from 2007 to 2020. Horowitz wrote the original core C++ codebase for MongoDB, designed the BSON document format, created the replica set consensus protocols, and led the engineering of wired clustering and sharding.

Who was Dwight Merriman and what was his technical contribution?

Dwight Merriman served as MongoDB's first CEO and Chairman, designing the query language and document model architecture. Merriman also co-founded AlleyCorp, Business Insider, and Gilt Groupe, serving as a pillar of New York City's tech ecosystem.

Who was Kevin Ryan and what was his role in funding and scaling MongoDB?

Kevin Ryan served as the founding investor, Chairman, and business strategist for 10gen / MongoDB. Ryan secured early venture capital backing from Union Square Ventures, Flybridge, and Sequoia Capital, establishing MongoDB as the flagship anchor of New York's 'Silicon Alley.'

Why did the founders open-source MongoDB under the GNU AGPL in 2009?

In February 2009, the founders open-sourced MongoDB to spark global developer adoption. By removing licensing costs, developers worldwide could download and experiment with the database, triggering a grassroots revolution that swept across web startups.

What was the founding philosophy: 'Built by developers, for developers'?

The founders established MongoDB's guiding principle: software tools should adapt to the natural mental models of programmers, not force programmers to contort their code to match the rigid mathematical limitations of 1970s relational storage tables.

Who was Eliot Horowitz and what was his technical contribution to MongoDB?

Eliot Horowitz was co-founder and Chief Technology Officer of MongoDB from 2007 to 2020. A prodigy software engineer who worked at DoubleClick and graduated from Brown University, Horowitz wrote much of the core database engine code, designed MongoDB's native replication and sharding protocols, and architected the aggregation pipeline framework.

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