OPT Ventures focuses on investing in disruptive technologies, sharing economy platforms, and direct trading solutions. The firm primarily targets early-stage companies, with a particular emphasis on seed-stage investments. While specific investment sizes are not disclosed, their portfolio suggests a range from seed to larger funding rounds.

Notable portfolio companies include A.L.I. Technologies Japan, a significant player in the Japanese tech scene, and remote.it, a promising startup in the remote connectivity space. OPT Ventures provides advisory services to its portfolio companies, leveraging its expertise in the venture capital ecosystem to support founders beyond financial investment. The firm's investment philosophy centers on identifying and nurturing innovative startups with high growth potential.