Here you go. Hope this helps:
Accel Partners: VC firm investing in early-stage B2B startups, Accel Partners has one of the most impressive portfolio out there. Companies like Dropbox, Slack, Atlassian, Braintree and Cloudera were all backed by this firm.
Bessemer Venture Partners: Creators of the Top 10 Laws of Cloud Computing and SaaS, Bessemer Ventures is one of the most respected VC firm. When Bessemer decides to invest, other firms typically follow.
Emergence Capital: One of the oldest enterprise-focused VC firms in the US, Emergence Capital made its first investment in Salesforce.com. They’ve since invested in Success Factors, Yammer, Veeva and Box.
In-Q-Tel: In-Q-Tel is the CIA’s investment arm. Over the last few years, it has become the stamp of approval for technologies secure enough for government agencies. It’s never a bad idea to get In-Q-Tel to invest.
Matrix Partners: VC firm affiliated with SaaS economics expert David Skok who creates the annual SaaS survey (with over 300 startups). Matrix Partners invested in Zendesk and Boston-based startup Hubspot.
Scale Venture Partners: Recommended by many B2B entrepreneurs, Scale VP has an impressive portfolio ranging from Hubspot to Box and Exact Target.