G-gen
Category: AI Infrastructure
A Japanese Google Cloud-focused cloud integrator (JV of Serverworks and Bespin Global) providing multi-cloud, generative-AI deployment and governance services to enterprise customers. G-gen was founded in 2021. The company is led by Takashi Hashiba (羽柴孝). Based in Shinjuku, Tokyo, Japan. Team size: 101-500. Latest round: Corporate Round. Key investors include Serverworks (majority parent, 66.6% voting rights as of FY ending Feb 2026), Bespin Global / Newberry Global Japan (JV co-parent).
- Founded
- 2021
- Headquarters
- Shinjuku, Tokyo, Japan
- Team size
- 101-500
Value proposition
G-gen is a Google Cloud Premier Partner and MSP that helps enterprises adopt, integrate, and operate Google Cloud and Google Workspace, combining Google Cloud expertise with parent Serverworks' AWS expertise to deliver multi-cloud and generative-AI solutions end-to-end.
Products and solutions
Google Cloud billing/resale (請求代行), Google Workspace licensing, cloud integration and MSP operations, generative-AI solutions (GenAI Workshop, GenAI x App PoC, Gemini Enterprise verification), G-gen Tech Suite (AI agent: Tech Agent + Tech Update, launched Aug 2025), マルチクラウドパッケージ (Google Cloud × AWS, launched Jan 2026), data analytics platform, digital product development, Google Cloud certified training, security assessment / Google Security Operations, CCoE support
Unique value
Japan's top-tier Google Cloud Premier Partner with 1,300+ customer engagements and 500+ certifications, uniquely positioned as a JV combining Google Cloud expertise (G-gen) with AWS expertise (Serverworks) and Bespin Global's multi-cloud capabilities for enterprise multi-cloud and generative-AI delivery.
Target customer
Enterprise companies in Japan across diverse industries, plus public-sector (local government) organizations, seeking Google Cloud adoption, multi-cloud integration, and generative-AI deployment.
Industries served
Enterprise IT, cloud services, generative AI, data analytics, public sector (local government), digital transformation across multiple industries.
Technology advantage
Google Cloud Premier Partner and MSP status; deep Google Cloud engineering talent (multiple Google Cloud Partner Top Engineer awardees); multi-cloud capability via parent Serverworks (AWS) and Bespin Global; generative-AI and AI-governance delivery; AIOps and AI FinOps managed services.
How they differentiate
Differentiates as a Google Cloud-specialist Premier Partner backed by AWS-specialist parent Serverworks and Bespin Global, enabling true multi-cloud (AWS + Google Cloud + Azure) delivery plus generative-AI and AI-governance services for enterprise — a rare combination in the Japanese market.
Main competitors
Other Japanese cloud integrators/SIs such as TIS, SCSK, and other Google Cloud Premier Partners, AWS-focused integrators like Serverworks (parent, complementary), global multi-cloud consultancies.
Key partnerships
Serverworks (parent, AWS), Bespin Global / Newberry Global Japan (parent, multi-cloud), BIPROGY (Japan business partnership for multi-cloud & generative-AI governance, targeting ~¥10B combined annual revenue), Google Cloud (Premier Partner/MSP), Fastly (Value-Added Reseller program).
Notable customers
Sumitomo Rubber Industries (Dunlop), Kodansha, Mitsubishi Estate, Meitetsu (Nagoya Railroad), Toyo Construction, Sangetsu, Workman, Nippon Life Insurance, ANA Group, Kirin Business System, dip, Tower Records
Major milestones
Established Aug 2021 as JV of Serverworks (50%) and Bespin Global Group (50%) with capital of ¥150M, became Google Cloud Premier Partner, merged with Topgate (founded 2006) in July 2024 to become a top-tier domestic Google Cloud partner, signed Japan business partnership with Serverworks and BIPROGY (Sept 2026) for multi-cloud and generative-AI governance services.
Growth metrics
1,300+ customer engagements; 500+ Google Cloud certifications; ~120–122 employees; 30 Google Cloud Partner Top Engineer 2026 awardees; 19 All Certification Holders 2025; G-gen FY02/26 sales ~¥8.34B; Google Cloud Premier Partner and MSP.
Market positioning
Positioned as one of Japan's top-tier Google Cloud partners (domestic top-class after merging with Topgate in 2024), targeting enterprise multi-cloud and generative-AI adoption with a goal of ~¥10B combined annual revenue with partners within 5 years.
Geographic focus
Japan (Tokyo HQ; expanding to Kansai region)
About Takashi Hashiba (羽柴孝)
Ex-Serverworks Cloud Integration Department Manager; AWS Certified Solutions Architect Professional; JAWSUG Tokyo core member; previously worked at a Japanese food-ingredients manufacturer. Founded Topgate (2006), which merged into G-gen in 2024.
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Official website: https://g-gen.co.jp/