We provide a range of software engineering services,
from JVM porting and compiler consulting
to application software development
in Java, C++ and other languages:
Java Consulting
First-hand experience developing commercial software using Java SE/EE, JBoss, Tomcat, Spring, Hadoop, Lucene, Elasticsearch, MySQL, HTML5, and other modern technologies.
Algorithm-Intensive Applications Development
Speaking the language of scientists and engineers, we can help your problem domain experts convert their ideas to industrial-grade software.
Custom Compilers And Tools
From optimizing compilers to debuggers to profilers to complete custom-built IDEs, we create quality tools for all stages of software development and maintenance.
DetailsJVM Porting/Optimization
As an Oracle Java Licensee, we can help you Java-enable your hardware/OS, implement specific JSRs, or extend/tune a Java implementation for your specific application domain.
Legacy Code Solutions
Whether you need to translate your legacy sources from an obsolete programming language to a mainstream one, migrate existing applications to a new platform, or integrate them into a modern environment, we can supply custom tools that would automate most of the work.
Products
Excelsior JET
Certified Java SE JVM with a static (AOT) compiler and deployment toolkit
Accelerate and protect your desktop and server Java applications. Deploy without dependency on the JRE.
Use the most secure environment for running Eclipse RCP applications and Tomcat Web applications.
Excelsior JET Embedded
High performance, small footprint Java SE Embedded solution
Leverage the most powerful version of the Java technology in your embedded devices with minimum overheads.
XDS FREE
Family of Modula-2/Oberon-2 compilers and "via C" cross-compilers
Optimise your Modula-2/Oberon-2 programs for Windows and Linux/x86, or use a "via C" cross-compiler to target other platforms.





News archive
Excelsior JET 15.3 Released
From version 15.3 onward, Excelsior JET includes the OpenJDK implementation of the standard Java SE API. Also introduced in this version is the support for Spring Boot applications. Download now or learn more.
Excelsior JET 15 Released
Version 15 introduces incremental compilation for AMD64 targets and improves application performance and scalability across all platforms.
The Excelsior JET Engineering Team Has Launched a Technical Blog
My engineering colleagues have launched a technical blog today. Visit https://www.excelsiorjet.com/blog to learn more about the inner workings of Excelsior JET and the JVM in general. The relevant posts from our main blog archive will gradually migrate to the new blog in the coming months.
Contact Us
By Email
support@excelsior-usa.com
Any technical questions or issues
sales@excelsior-usa.com
Pricing, licensing, support renewals, etc.
info@excelsior-usa.com
All other issues.
By Phone
+7 (383) 330 55 08
We are in GMT+6 - mind the time difference
By Fax
+1 (509) 271 52 05 (intl e-fax)
By Mail
P.O.Box 100Novosibirsk 630090 Russia
Or Come Over For a Visit
6 Lavrenteva Ave.Novosibirsk 630090 Russia
Media/Analysts
Dmitry LeskovDirector of Marketing
+1 (408) 786 5641 skypein
(4am-4pm GMT)
dleskov@excelsior-usa.com