MemSQL

Top Executive: CEO Eric Frenkiel

San Francisco-based MemSQL develops a distributed in-memory database that can process transactions and run analytics in real time using SQL.

In March the company debuted MemSQL 5 with a range of new technologies and enhanced capabilities to improve the software's database, data warehouse and streaming workload performances. The new release can merge transactions and analytics into a single database through its hybrid transaction/analytical processing technology that supports OLTP and OLAP queries.

In April MemSQL, founded in 2011, raised $36 million in Series C financing.