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EsperTech is the company behind Esper (Java based) and NEsper (.Net based). Development of Esper, which is open source – under a GPL license – was started in 2004, and EsperTech was founded in 2006. The company is based in New Jersey and does not have any other offices. The company is completely self-funded and has no sales force. Nevertheless, it has users world-wide (mostly in the banking, IoT, telecommunications and security) as well as OEMs that have embedded Esper into their own offerings. Impetus Technologies, for example, uses Esper as a part of its StreamAnalytix offering.

Because of its open source presence and large number of OEM/ISV partnerships EsperTech believes that Esper is probably the most widely used platform of its type world-wide. This is not an unreasonable claim.

EsperTech (logo)

Company Info

Headquarters: PO Box 3129, Wayne, NJ 07474-3129, USA
Telephone: (877) 994 7368


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EsperTech is the company behind the open source Esper (Java based) and NEsper (.Net based) products, where the former was one of the first CEP engines to be introduced.
Cover for Streaming Analytics 2018

Streaming Analytics 2018

This Market Update considers both stream processing platforms upon which you might build analytics as well as streaming analytics platforms per se.
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