c-treeACE V11.5 Database

c-treeACE Database

A fully ACID advanced key-value store that supports multiple relational & non-relational APIs. Its unique No+SQL technology facilitates high-performance NoSQL and industry-standard SQL access within the same application, over the same data.


See the speed of the c‑treeACE Database


Learn how c‑treeACE can be deployed easily in a variety of environments right for your business.


Start architecting your software today by downloading the most robust No+SQL database, c‑treeACE.

Enterprise RAS Technology


With decades of engineering built into c-treeACE, you'll find it to be the most reliable database technology. Features include advanced indexing and full transaction control to automatic recovery.


c-treeACE offeres a wide variety of features to make sure your application data is available when you need it.


c‑treeACE is a nearly zero-administration database, offering a complete set of tools to interact with the Database, and manage backups and service the database with minimal disruption to your workflow.

Core Technology


An advanced, ACID-compliant, key-value store based on our traditional ISAM engine.


A full-featured ANSI-compliant SQL engine, based on our advanced NoSQL key-value store as it's storage engine.


Our multimodel approach is unique in the way our NoSQL and SQL engines complement each other.


Fine tuning with multiple performance options provides unprecedented application data access.


With numerous mechanisms to enforce data-access policies to advanced data encryption.

ACID Transactions

c‑treeACE provides ACID guarantees on both NoSQL and SQL transactions, concurrently.

+20 Platforms
& 22 APIs

An ideal choice for interoperability between the many supported platforms.

Engineer2Engineer Support

98 percent support satisfaction currently among FairCom customers.

What's New?

Now Available: c-treeACE V11.5


“We reviewed every database option available on the market today. Only FairCom could meet the real-time and throughput requirements we had to deliver in the TeaLeaf Web application management solution.”

Tim Knudsen Director of Product Management, TeaLeaf

Fine Tuning

Take Control of Your Data

Our core value is Empowerment. For developers, this means having absolute control over your application. We’ve built c‑treeACE with this principle in mind and that’s what makes it an engineering-level database. In today’s environment this is critical as developers are under increasing pressure to produce innovative applications fast, while ensuring they stay reliable and secure. This takes more than traditional databases offer—it requires precision and control.

Since 1979

The Most Robust No+SQL Database Technology

FairCom has been refining its NoSQL technology for over 35 years. Built upon the solid foundation originally called ISAM (Indexed Sequential Access Method), c‑treeACE has become the most robust No+SQL multimodel solution available, well suited for a broad range of transactional applications. It provides a very strong ACID key-value store with full SQL capabilities. Our cross-platform support (Unix, Linux, macOS, Windows), scalability, and high availability combined with our long history of stability and innovation have been noted in the industry for their strength.

Proven and Trusted

Technology Proven by the Real World

Each component of your mission-critical system is as strong as the company that stands behind it. Choosing c‑treeACE means choosing technology with a proven record. Millions of applications around the world are operating right now on c‑treeACE. For nearly four decades our technology has been chosen because of the performance and integrity behind it. Our technology is running in over 100 countries, on 6 continents and has been selected by 43 of the Fortune 100. Without even realizing it, you’re probably already relying on us. We’re embedded in pay-at-the-pump hardware in gas stations and environmental detectors monitoring energy usage. We’re in financial systems that guard your assets and medical systems that protect your health. We’re in the machines that build the microchips powering your computer and in the applications processing your transactions.

Fast and Consistent

ACID Transactions with NoSQL Performance

A challenge facing NoSQL solutions is the tendency to achieve scaling through clusters that are not synchronized in real-time. This results in “eventually consistent” (BASE) data rather than the ACID-compliant transactions that ensure accurate, up-to-date data throughout the system. With ACID-compliant transactions and NoSQL performance, FairCom has a proven track record providing data integrity for financial institutions and other mission-critical uses.

Always on. Always running.

Failover and High Availability with c-treeAMS

Increase availability and add fault tolerance to system architecture. The c‑treeAMS Replication Agent allows a separate, independent server to be constantly updated with all the data changes of a master server. You can develop logic in your application so that, in case of an unexpected interruption of the main server, it will simply switch to the replicated server—preserving not only the original data, but the current transaction state as well. When the system comes back online, the last replication location is identified and the files are brought back in sync. Due to the low bandwidth consumed, the servers can be geographically remote and yet have the updated data immediately available in near real-time. Learn More


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