MarTech Startup Ziflow Raises $6M in Expansion Funding to Meet Growing Demand for Creative Collaboration LONDON and BOSTON, April 8, 2021-- Ziflow, the industry's leading creative review and approval solution for agencies and brands, today announced it has raised a $6 million expansion round, led by Companyon Ventures, with participation from Riverside Acceleration Capital (RAC), bringing total funding to approximately $7.3 million. The funds will be used to accelerate the expansion of Ziflow's product development and customer facing initiatives to meet the growing demand for enterprise-ready creative collaboration tools that compliment today's remote working environments.