Turn market entry into
market momentum.
Interbay helps businesses unlock new markets and accelerate growth across borders. Our tech-enabled advisory model blends strategy, execution and local expertise to deliver measurable results.
Advisory Firm That Executes
Founded by former global business leadership team from Japan's leading B2B intelligence company.
With combined 60+ years hands on experience in cross border go-to-market execution, sales enablement, marketing, PR, localization and cross-border expansion in tech, start-up and high-growth industries.
With backgrounds spanning strategy, sales, marketing, operations and investment advisory, the team combines the rigor of enterprise execution with the agility of a startup. We act not just as advisors but as hands on partners embedded in your growth initiatives.
Bridging languages and cultures between Japan and global markets to execute strategy with local precision.
From strategy to on-the-ground operations, we support every step of your cross-border expansion.
Deep expertise in the latest technology trends and business models across global markets.
Our Team
Karen Hsu
Former investment banker with 20+ years of GTM, business strategy, enterprise development and investment experience in Japan, the U.S., Southeast Asia and East Africa. Track record of managing complex programs and diverse teams with focus on results driven inclusive and sustainable growth. Born and raised in Yokohama, Japan.
Hirozane Sugihara
Nearly two decades of experience in creative and digital execution for businesses operating in Japan. Starting in the entertainment industry, has since expanded across manufacturing, pharmaceutical, IT, trading, wellness, and hospitality sectors. Work spans digital platform development, brand and creative direction, and long-term operation of large-scale media properties, including a decade-long engagement with a major overseas music media outlet. Bilingual in English and Japanese.
Ai Igarashi
12+ years of experience in ad-tech, SaaS and B2B marketing in Japan and APAC. Worked with companies such as MediaMath to drive revenue growth, market entry and customer success. Expertise include SaaS sales (new business & account management), GTM planning and execution, digital marketing (paid ads, affiliate, content, social), customer success and retention.
Alice Thet
8+ years of experience supporting start-ups and tech companies in the U.S., Southeast Asia, and Hong Kong with business expansion, market analysis, and digitalization strategies. Well-versed in liaising with multi-cultural stakeholders across challenging business environments to synthesize technical specifications into localized business strategies. Native trilingual speaker of English, Mandarin, and Burmese.
Our Services
Blending strategy, execution and local expertise to deliver measurable results
Market Entry & Expansion
GTM strategy and market research to determine commercial viability before overcommitting resources. One-stop access to high-value connections, partnerships and channels.
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GTM Strategy & Market Research -
PoC Execution & Case Studies -
Partnership & Channel Development -
End-to-end marketing and PR support
Localization & Operations
Fully bilingual, execution-ready team that bridges language, culture and operational realities. Move faster, avoid misalignment and execute globally without losing local nuance.
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Bilingual On-the-Ground Execution -
Product & Message Localization -
Stakeholder Management
Revenue Growth & Business Development
Build customer pipelines, secure partnerships and access high-value clients. Data-driven targeting and Tech/AI-assisted sales workflows.
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Customer Pipeline & Lead Generation -
Tech/AI-Assisted Sales Workflows -
Data-Driven Targeting
Additional Services
Who We Serve
Leading Japanese IT/Tech Companies
Looking to Expand Globally
Established or high-growth Japanese technology, AI, SaaS, or digital companies seeking international customers, partnerships, or new market opportunities
- Global Market Entry Strategy
- Access to High-Value International Clients
- Product & Marketing Localization
- Mentorship for International Expansion
Enables Japanese tech companies to accelerate global growth efficiently while mitigating cultural and operational risks.
Global Companies Seeking to
Enter Japan or a New Market
Global Tech, SaaS, fintech, AI, cybersecurity and others targeting Japan or Asia that need local market intelligence and go-to-market execution support.
- Access to High-Value Partners & Channels
- Localization for Japanese Culture & Context
- Revenue Growth & AI-Assisted Workflows
- Partnership, JV & Strategic Advisory
Enables global companies to enter Japan confidently and effectively, reducing risk and time-to-market while maximizing impact and revenue potential.