This maybe useful, almost all of the cos listed are present in the Bay Area:
Company name: Docker
Headquarters: San Francisco
Funding through 2018: $180 million in 5 rounds
Company name: Cloudera
Headquarters: Palo Alto, California
Funding through 2018: $1.04 billion in 8 rounds
Company name: Nutanix
Headquarters: San Jose, California
Funding through 2018: $312.2 million in 5 rounds
Company name: Docusign
Headquarters: San Francisco
Funding through 2018: $508.1 million in 14 rounds
Company name: Mirantis
Headquarters: Mountain View, California
Funding through 2018: $220 million in 4 rounds
Company name: Zuora
Headquarters: Foster City, California
Funding through 2018: $242.5 million in 6 rounds
Company name: Tenable Network Security
Headquarters: Columbia, Maryland
Funding through 2018: $309.84 million in 3 rounds
Company name: Okta
Headquarters: San Francisco
Funding through 2018: $230 million in 8 rounds
Company name: Slack
Headquarters: San Francisco
Funding through 2018: $339.95 million in 7 rounds
Company name: GitHub
Headquarters: San Francisco
Funding through 2018: $350 million in 2 rounds
Company name: Databricks
Headquarters: San Francisco
Funding through 2018: $47 million in 2 rounds
Company name: Checkmarx
Headquarters: Tel Aviv, New York
Funding through 2018: $92 million in 3 rounds
Company name: Illumio
Headquarters: Sunnyvale, California
Funding through 2018: $142.5 million in 3 rounds
Company name: MuleSoft
Headquarters: San Francisco
Funding through 2018: $259 million in 7 rounds
Company name: Blue Jeans Network
Headquarters: Mountain View, California
Funding through 2018: $175 million in 5 rounds
Company name: Qualtrics
Headquarters: Provo, UT
Funding through 2018: $220 million in 2 rounds
Company name: Insidesales
Headquarters: Provo, Utah
Funding through 2018: $201.2 million in 4 rounds
Company name: Tanium
Headquarters: Emeryville, California
Funding through 2018: $302 million in 5 rounds
Company name: Optimizely
Headquarters: San Francisco
Funding through 2018: $146.2 million in 6 rounds
Company name: Xamarin
Headquarters: San Francisco
Funding through 2018: $82 million in 3 rounds
Company name: CloudFlare
Headquarters: San Francisco
Funding through 2018: $182.05 million in 4 rounds
Company name: Apttus
Headquarters: San Mateo, California
Funding through 2018: $186 million in 3 rounds
Company name: Stripe
Headquarters: San Francisco
Funding through 2018: $280 million in 7 rounds
Company name: Gainsight
Headquarters: Redwood City, California
Funding through 2018: $104.25 million in 6 rounds
Company name: Adaptive Insights
Headquarters: Palo Alto, California
Funding through 2018: $176.28 million in 7 rounds
Company name: DigitalOcean
Headquarters: New York
Funding through 2018: $123 million in 3 rounds
Company name: Tidemark
Headquarters: Redwood City, California
Funding through 2018: $118.37 million in 8 rounds
Company Name: Sprinklr
Headquarters: New York
Funding through 2018: $123.5 million in five rounds
Company name: AppAnnie
Headquarters: San Francisco
Funding through 2018: $94 million in 5 rounds
Company name: Tintri
Headquarters: Mountain View, California
Funding through 2018: $260 million in 6 rounds
Company name: Udacity
Headquarters: Mountain View, California
Funding through 2018: $160 million in 4 rounds
Company name: Bracket Computing
Headquarters: Sunnyvale, California
Funding through 2018: $131.7 million in 3 rounds
Company name: Qumulo
Headquarters: Seattle
Funding through 2018: $66.8 million in 3 rounds
Company name: Hedvig
Headquarters: Santa Clara, California
Funding through 2018: $30.5 million in 3 rounds
Company name: Cumulus Networks
Headquarters: Mountain View, California
Funding through 2018: $51 million in 2 rounds
Company name: CrowdStrike
Headquarters: Irvine, California
Funding through 2018: $156 million in 4 rounds
Company name: 6sense
Headquarters: San Francisco
Funding through 2018: $41 million in 2 rounds
Company name: Confluent
Headquarters: Mountain View, California
Funding through 2018: $30.9 million in 2 rounds
Company name: Interana
Headquarters: Menlo Park, California
Funding through 2018: $28.2 million in 2 rounds
Company name: Twilio
Headquarters: San Francisco
Funding through 2018: $233.7 million in 6 rounds
Company name: Mixpanel
Headquarters: San Francisco
Funding through 2018: $77.02 million in 5 rounds
Company name: Payoneer
Headquarters: New York
Funding through 2018: $90 million in 8 rounds
Company name: Stack Exchange
Headquarters: New York, NY
Funding through 2018: $68 million in four rounds
Company name: SimilarWeb
Headquarters: Tel Aviv
Funding through 2018: $65 million in 7 rounds
Company name: Mesosphere
Headquarters: San Francisco
Funding through 2018: $48.75 million in 3 rounds
Company Name: HackerOne
Headquarters: San Francisco
Funding through 2018: $34 million in 2 rounds
Company name: Realm
Headquarters: San Francisco
Funding through 2018: $29 million in 3 rounds
Company name: CoreOS
Headquarters: San Francisco
Funding through 2018: $20 million in 4 rounds
Company name: AtScale
Headquarters: San Mateo, California
Funding through 2018: $9 million in 2 rounds
Company Name: GitLab
Headquarters: San Francisco
Funding through 2018: $7.32 million in 3 rounds