›Portfolio Companies

Past, Present and Future Leaders

InterWest is proud and privileged to partner with visionary management teams who are shaping the future of Information Technology and Healthcare. The companies they have started are vital parts of the portfolio of industry-leading startups that InterWest has helped over the last four decades.

Our Companies

Early stage IT and Healthcare Investing

Aria Systems


company snapshot


Aria Systems is a leader in subscription billing and management solutions. A pioneer in SaaS-based billing, Aria has grown rapidly to manage millions of accounts worldwide across a wide range of industries. Its Billing and Subscription Management Platform is the industry's most reliable, flexible and scalable on-demand platform for organizations looking to accelerate recurring revenue capture while reducing operating costs.

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