Aiven, a software company that combines the best open source technologies with cloud infrastructure, has announced it raised $100M in its Series C, bringing the company’s total investment to $150M at a valuation of now more than $800M. The round was led by Atomico, with participation from Salesforce Ventures and World Innovation Lab as new investors. Lead investors of Aiven’s Series A (Earlybird Venture Capital) and Series B (IVP) also significantly increased their capital commitments to Aiven.