TEAM

A global team built across investing and scaling high-growth companies

We bring experience in growth investing, strategy consulting and financing to partnerships with growth companies in Japan.

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Archibald Ciganer, CFA

Managing Partner

Archie has more than 20 years of investment and financial markets experience in Japan. Prior to founding Artemis, he spent 18 years at T. Rowe Price Japan, where he served as a portfolio manager for the firm’s Japan Equity Strategy and as CIO of the investment division. During his tenure, he led investments across both public and private markets and, from 2018 onward, was an early practitioner of crossover investing in Japan, backing late-stage growth companies ahead of and beyond IPO. At Artemis, he leads the firm’s strategy of investing in high-quality Japanese startups at the mid-to-late stage, including crossover and secondary opportunities. He brings a long-term, public-markets-informed investment approach and an extensive network across Japan’s corporate, financial and startup ecosystems.

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Archibald Ciganer, CFAManaging Partner

Archie has more than 20 years of investment and financial markets experience in Japan. Prior to founding Artemis, he spent 18 years at T. Rowe Price Japan, where he served as a portfolio manager for the firm’s Japan Equity Strategy and as CIO of the investment division. During his tenure, he led investments across both public and private markets and, from 2018 onward, was an early practitioner of crossover investing in Japan, backing late-stage growth companies ahead of and beyond IPO. At Artemis, he leads the firm’s strategy of investing in high-quality Japanese startups at the mid-to-late stage, including crossover and secondary opportunities. He brings a long-term, public-markets-informed investment approach and an extensive network across Japan’s corporate, financial and startup ecosystems.

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Jean-Philippe BiragnetPartner

J-P has 30 years of consulting experience working across Japan, Asia-Pacific, Europe and US, advising leading global companies and Financial Sponsors on strategy, growth and operational performance improvement. Prior to joining Artemis, J-P was a senior Partner with Bain & Company in Japan, where he spent the last 25 years. He led Bain’s TMT practice in Japan for 20 years, supporting the scaling of multiple high-growth companies in Japan. He set up and led Bain’s Private Equity practice in Japan, supporting leading Growth Equity and Private Equity funds with commercial due-diligence and post-acquisition value creation. He most recently built/led Bain’s AI practice in Japan. His background gives Artemis deep technology industry expertise, extensive Private Equity commercial due diligence experience, as well as strategy and operational improvement capabilities to help Japan growth-stage companies scale domestically and globally.

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Sunao SanoPrincipal

Sunao has over 10 years of experience in private investments and investment banking across Japan, Southeast Asia, and US. Prior to joining Artemis, he served as Managing Director in MUFG’s Global Markets Business Group, where he played a key role in establishing Artemis Ventures. Sunao also served as a Vice President at Dragon Fund, a Singapore-based growth equity firm with ~$500 million in AUM, where he led the establishment of the platform and was involved in growth equity investments across Southeast Asia. Prior to that, he worked in the Private Credit and Equity team at Morgan Stanley Investment Management, focusing on U.S. middle-market transactions within its multi-billion-dollar private investment platform. Sunao began his career at MUFG, where he gained cross-border investment banking experience in Japan and US. He brings to Artemis strong experience in investment execution and portfolio management, together with a strong network of institutional relationships, including across MUFG.

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Toshiaki ImamuraPrincipal

Toshi has over 10 years of experience at MUFG across startup finance, growth investing, and corporate banking. At MUFG, he spearheaded the establishment and business development of Mars Growth Capital and Dragon Fund, which provide debt and equity financing to startups globally, primarily in the APAC region. He earned his MBA from Stanford Graduate School of Business, where he was involved in portfolio operations at the Stanford GSB Impact Fund. At Artemis, he draws on his experience working with startups, together with his cross-border network, to identify and support high-growth companies in Japan.

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Yinan XingCTO & COO

Yinan has experience in technology, corporate management, and venture building across Japan and Asia. Prior to joining Artemis, she served as COO at Aniwo, an Israeli-Japanese venture platform, and later worked at GA technologies, a publicly listed Japanese proptech company, with responsibilities spanning operations, business development, and cross-border expansion. She also worked in the AI sector, leading business development and technology commercialization in Japan and working with founders, investors, and partners across the region. At Artemis, Yinan oversees the firm’s internal operations, technology, and fund management operations. She also supports the investment team through the implementation of technology tools across the firm.

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