Brendan O'Brien is co-founder of cloud billing provider Aria Systems.
These companies are experiencing significant year over year growth (Aria Systems, Aryaka, Get Satisfaction, Marketo, Spredfast, Virsto and Workday).
Companies rely on Aria Systems to automate their recurring revenue models and manage the entire lifecycle of their subscribers.
On demand billing and recurring subscription management company,Aria Systems has raised $20 million in new funding led by InterWest Partners with Hummer-Winblad and Venrock participating in the round.
Aria Systems has been around since 2003, which can seem like a century in the San Fransisco area, where the company is based.
Aria Systems is bringing together the chocolate of usage- and subscription-based revenue opportunities with the peanut butter of increasingly connected automotive systems.
Editor's note: Bruce Cleveland and Doug Pepper are experienced investors and have collectively backed more than 20 SaaS-based enterprise software companies including: Aria Systems, Marketo, Optimizely and Spredfast.
I know from experience because my firm, InterWest, is an early investor in several companies in this category including Marketo, GetSatisfaction, Spredfast, Varolii, Cloud9, Aria Systems and Cubetree (acquired by Successfactors).
Cells were then sorted on a BD FACS ARIA IIIu system using CD14 positive selection.
