- Declara (Mountain View) - Building tools to help people learn and collaborate more effectively. Looking for data scientists (and I think search engineers). https://www.declara.com/about/careers/ (One of the founders has a movie-worthy personal story: http://www.businessweek.com/articles/2013-09-26/declara-co-f...)

- Zephyr Health (SF) - Building tools for getting insights out of lots of disparate health/medical datasets. Looking for engineers with a passion for data (http://www.jobscore.com/jobs2/zephyrhealth/java-developer/d6... and http://www.jobscore.com/jobs2/zephyrhealth/database-engineer...)

- LendUp (SF) - ML-driven payday loan lending, done is a very socially responsible way. Looking for engineers with a passion for data (https://www.lendup.com/careers/backend-developer)

- Periscope (SF) -- Periscope offers a SaaS analytics platform that works super super fast on large datasets. They're looking for engineers to work on data/analytics tools (https://www.periscope.io/data-obsessed-engineer)

- Vurb (SF) -- They're building a new and better way to surf the web. Looking for data scientists and search engineers. They were the recent grand prize winner at TC Disrupt in New York (http://vurb.com/jobs)