About This Deal

MongoDB acquired Realm (Tightdb, Inc.) for $39.0 million in cash (purchase price per the merger agreement; $38.8 million total merger consideration after closing adjustments), a transaction completed in May 2019, structured as all cash.

Realm (Tightdb, Inc.) operates in Mobile database / data synchronization, is based in San Francisco, California, USA. MongoDB acquired all outstanding capital stock of Tightdb, Inc. ("Realm"), based in San Francisco, California, on May 7, 2019. Realm offers a mobile database together with a platform providing real-time data synchronization, one of the most popular mobile database and synchronization platforms.

To accelerate MongoDB's mobile efforts: data synchronization is the single biggest challenge in building compelling mobile applications, and Realm's synchronization platform is a natural complement to MongoDB Atlas and Stitch, reinforcing MongoDB's run-anywhere strategy.

A widely-adopted mobile database and the synchronization technology MongoDB needed to extend its platform to mobile and edge devices. Integration of Realm's mobile sync with MongoDB Atlas and Stitch; extension of the run-anywhere strategy to mobile/edge. MongoDB platform (Atlas / Stitch; later MongoDB Realm / Atlas Device Sync) MongoDB management, Q1 FY2020 earnings call (Jun 5, 2019): "Realm reinforces our run-anywhere strategy and like MongoDB is focused on giving developers a far more flexible, intuitive and comprehensive way to work with data. We will be providing more details about our future plans for Realm."

Deal Terms

Acquirer
MongoDB
Target
Realm (Tightdb, Inc.)
Value
$39.0 million in cash (purchase price per the merger agreement; $38.8 million total merger consideration after closing adjustments)
Date
May 2019
Type
Full acquisition
Status
Ready

Transaction Details

Target HQ
San Francisco, California, USA
Segment
Mobile database / data synchronization
Structure
all cash
Announced
May 7, 2019
Closed
May 7, 2019
Synergies
Integration of Realm's mobile sync with MongoDB Atlas and Stitch; extension of the run-anywhere strategy to mobile/edge.

In Their Words

To accelerate our mobile efforts, we recently acquired Realm, one of the most popular mobile database and synchronization platforms. Data synchronization is the single biggest challenge in building compelling mobile applications and Realm has developed a comprehensive synchronization platform that is a natural complement to MongoDB Atlas and Stitch. Realm reinforces our run-anywhere strategy.MongoDB management, Q1 FY2020 earnings call (Jun 5, 2019)
We completed the acquisition of Realm, developers of a leading mobile application database and data synchronization technology, which we plan to fully integrate with our platform to allow developers to seamlessly work with data on mobile devices.MongoDB FY2020 10-K, Item 1 Business

Advisors

Advisory firms were not disclosed for this transaction.

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Sources: Press release ↗ · Last updated June 11, 2026

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