Macquarie Capital Venture Studio, the infrastructure-focused accelerator affiliated with the nearly $500 billion-dollar investment firm, Macquarie Group, has added three companies to its portfolio. The companies, AirMap, Envoy Technologies, and Teralytic, provide services in airspace management for drones; electric vehicle sharing services; and soil analysis, respectively. Through the venture studio, Macquarie tries to bring the companies into new markets through its connections with infrastructure and development projects around the world. The Sydney, Australia-based investment firm has already invested in six companies for its accelerator program, launched in conjunction with R/GA. Other companies in the Macquarie portfolio include the developer of redesigned solar axis trackers, Sunfolding; a company that produces water from condensation, Zero Mass Water; and a drone inspection company, Hangar Inc. Envoy marks the second investment in electric vehicle charging infrastructure and services for Macquarie, since the company also invested in FreeWire Technologies.