+81

+81 is a Japan-based business incubator that works with entrepreneurs to build ventures addressing societal and industrial challenges. Its remit spans the full early-stage sequence: identifying problems, shaping business concepts, testing demand, and launching new companies and services. The firm provides planning, validation, funding, talent and operational resources to the businesses it creates. It is part of the SOLIZE Group, which combines venture creation with operational and digital expertise.

Rather than concentrating on a single market, +81 develops multiple ventures in parallel across distinct verticals. The stated portfolio spans software development, AI-driven development, after-school education and senior housing guarantees, alongside its core venture creation and incubation services. Founding year, team size and fund economics are not disclosed.

The geographic footprint is Japan. Technical domains named by the firm include software development and AI-driven development, both offered within the venture portfolio rather than as external client services. The stated through-line across the portfolio is businesses built to address real-world societal and industrial needs, with +81 supporting business owners through the transition from idea to operating company.