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Top B2B Companies in Japan

TrustList ranks 105 companies in Japan across 8 categories. The biggest lists are IT product companies (28), web hosting companies (16) and venture capital firms (15). Each list below is the top of its full ranking, ordered by rating, review volume and listing quality; no one pays for a position.

The businesses here list work in Asia, Europe, North America and Tokyo. 104 of them have written a profile you can read before you get in touch.

  1. Medidata Solutions logo

    Mobile App Development · Custom Software Development · Search Engine Optimization · Also in United States of America

    Medidata Solutions provides a cloud platform for clinical research. It brings trial data, AI-based insight and patient-facing technology together.

  2. Kalibrate logo

    Custom Software Development · Web Development · Web Design · Also in United Kingdom

    Kalibrate sells data, analytics software and consulting to retailers that need to decide where to open sites and how to price.

  3. Zuora logo

    Web Development · Web Design · IT Services · Also in United States of America

    Zuora makes a subscription management platform. Businesses in any industry use it to launch subscription products, set up usage-based pricing and new packaging, and understand…

  4. Fossid AB logo

    Artificial Intelligence - AI · Web Development · Web Design · Also in Sweden

    Fossid AB develops software that finds open source code inside a company's products.

  5. SAi logo

    Web Development · Web Design · IT Services · Also in Belgium

    SAi makes software used by sign shops, print providers and CNC operators. Its two main product families cover design and printing on one side and routing and cutting on the other.

  1. Telehouse Europe logo

    Web Development · Web Design · IT Services · Also in Hong Kong and North America

    Telehouse offers carrier-neutral colocation, remote hands and cross-connects from data centres in Europe, Asia and North America.

  2. Equinix logo

    Web Development · Web Design · IT Services · Also in Ghana and Ivory Coast

    Equinix, Inc. of Redwood City operates colocation data centres and interconnection services for enterprises, network operators and cloud providers worldwide.

  3. Akamai Technologies logo

    Mobile App Development · Web Development · iOS App · Also in Latin America and Oceania

    Akamai sells a content delivery network and, through its cloud service formerly known as Linode, virtual machines and related infrastructure in regions across several continents.

  4. Digital Realty logo

    Web Development · Web Design · IT Services · Also in Hong Kong and Latin America

    Digital Realty operates more than 300 data centres in over 55 metros and sells colocation and interconnection under its PlatformDIGITAL offering.

  5. Alibaba Cloud logo

    Cloud storage · eCommerce · Partners · Also in Hong Kong and Middle East

    Alibaba Cloud, the cloud arm of Alibaba Group, sells virtual machines, storage, networking and a CDN from regions across Asia, Europe, the Americas and the Middle East.

  1. Beenos Partners logo

    Networking · Internet · Travel · Also in Ukraine

    Beenos Partners is the venture side of BEENOS, a Japanese group that connects Japan with overseas markets.

    Why #1: Founded 1999, as stated on its own website, read 5 Oct 2026

    Not yet on record: client reviews, vetting.

  2. Pulsar Venture Capital logo

    Venture Capital · Partners · Networking · Also in Dublin and Europe

    Pulsar Venture Capital, known as Pulsar VC, invests in highly scalable next-generation technology start-ups. It has operated since 2009 and describes itself as a hands-on investor.

    Why #2: Founded 2009, as stated on its own website, read 5 Oct 2026

    Not yet on record: client reviews, vetting.

  3. Cool Japan Fund logo

    Cool Japan Fund is a public-private investment fund set up by statute in November 2013.

    Why #3: Founded 2013, as stated on its own website, read 5 Oct 2026

    Not yet on record: client reviews, vetting.

  4. Corundum Open Innovations logo

    Venture Capital · Partners · Also in Tokyo, Japan and Tokyo

    Corundum Open Innovation is a venture capital firm linking Israel and Japan, founded in 2015 and backed by Japanese corporations. It has teams in both countries.

    Why #4: Founded 2015, as stated on its own website, read 5 Oct 2026

    Not yet on record: client reviews, vetting.

  5. Blackstone Group logo

    Artificial Intelligence · Partners · Insurance · Also in London and Austin

    Blackstone Group is an investment business that puts capital to work for pension funds, large institutions and individuals.

  1. Irep Inc logo

    Consumer Products & Services · Arts, Entertainment & Music · Advertising & Marketing · Also in California

    Irep Inc is a digital marketing agency with headquarters in Tokyo and a base in the San Francisco Bay Area.

    Why #1: Based in Tokyo, Japan, and the San Francisco Bay Area, USA · Founded 1997, as stated on its own website, read 5 Oct 2026

    Not yet on record: client reviews, vetting.

  2. Custom Media KK logo

    Consumer Products & Services · Advertising & Marketing · Hospitality & Leisure

    Custom Media KK is a bilingual B2B marketing agency that links Japan with overseas markets.

    Why #2: Based in Japan · In business 15+ years, as stated on its own website, read 28 Sept 2026

    Not yet on record: client reviews, vetting.

  3. IPONWEB logo

    Web Development · Web Design · IT Services · Also in United Kingdom

    IPONWEB builds the technology behind programmatic advertising.

    Why #3: Office in Japan · In business 10+ years · Team of 400+, as stated on its own website, read 5 Oct 2026

    Not yet on record: client reviews, vetting.

  4. Kemosabe logo

    Partners · Production · Advertising

    Kemosabe is a full-service creative and media buying agency working from London, with particular experience in travel and tourism.

    On record: Founded 2016 · professional accreditation, as stated on its own website, read 5 Oct 2026

  5. BIG SPLASH Creative logo

    BIG SPLASH Creative is a film and media production studio in Tokyo.

    On record: Based in Tokyo, Japan

  1. Arsaga Partners, Inc logo

    Business Services · Real Estate · Financial Services

    Arsaga Partners, Inc is a Japan-based consultancy that helps organisations digitise their work, carrying projects from strategy through to build and ongoing support.

  2. Avelio Systems logo

    Android · PHP · CMS

    Avelio Systems is a Japanese software developer based in Tokyo.

  3. Connecting Dots Tech Solutions Pvt. Ltd logo

    Information Technology

    Connecting Dots Tech Solutions Pvt. Ltd is an IT consulting and outsourcing company that develops, runs and maintains software systems for clients.

  4. CoreBuild logo

    Software Development · SaaS · Collaboration

    CoreBuild is a software development company specialising in web and mobile applications.

  5. Digital Zen Works logo

    Consumer Products & Services · Arts, Entertainment & Music · Hospitality & Leisure · Also in Tokyo

    Digital Zen Works is a software and web development studio in Tokyo, Japan.

  1. Apex K.K. logo

    Apex K.K. is an executive search firm based in Tokyo. It recruits bilingual professionals, from mid-level to senior management, for employers in Japan and abroad.

  2. ARK Outsourcing logo

    Insurance · Accounting · Outsourcing

    ARK Outsourcing is a professional services firm in Shibuya, Tokyo.

  3. Bigbeat Inc. logo

    Partners · Production · Advertising

    Bigbeat Inc. is a business-to-business advertising and marketing agency in Tokyo, Japan.

  4. Data matics Staffing logo

    Business Services · Engineering · Manufacturing · Also in Doha, Qatar and Doha

    Data matics Staffing is a talent acquisition consultancy that recruits professionals for employers in India, the Middle East and Africa.

  5. Divine Solutions Japan logo

    Divine Solutions Japan, which trades as DSJ, is a specialist recruiter for financial services and technology in Asia, with its work centred on Japan.

  1. AME Cloud Ventures logo

    Cloud · Engineering · Manufacturing · Also in China

    AME Cloud Ventures is a venture fund led by Jerry Yang, who co-founded Yahoo.

  2. Dreamers Fund logo

    Blockchain · Science · Learning · Also in Washington and New York

    Dreamers Fund, also called Dreamers VC, is a Los Angeles venture fund that invests in early-stage companies.

  3. DNX Ventures logo

    Series A · Early Stage · Series · Also in California and Silicon Valley

    DNX Ventures is an early-stage venture capital firm that invests in startups selling to businesses.

  4. World Innovation Lab logo

    Cloud · Automation · Government

    World Innovation Lab is a venture fund with bases in the United States and Japan.

  5. Monozukuri Ventures logo

    Seed Stage · Artificial Intelligence · Manufacturing · Also in Toronto and New York City

    Monozukuri Ventures is a venture capital firm operating out of Japan and North America that specialises in hard tech and IoT.

  1. FANUC Corporation logo

    Collaborative Robots · Industrial Robots

    FANUC makes industrial robots, collaborative robots and machine tools for factory automation, supported by service in more than 100 countries.

  2. YASKAWA Electric Corporation logo

    Collaborative Robots · Industrial Robots

    YASKAWA makes industrial and collaborative robots, AC servos and drives, and CNC controllers for factory automation and systems integration.

  3. Rapyuta Robotics logo

    Rapyuta Robotics makes people-assist mobile robots and modular storage systems that warehouse and logistics operators use to speed up picking.

  4. Thinker Inc. logo

    Collaborative Robots · Also in Osaka

    Thinker Inc. makes the Pre-Touch Sensor TK-01 for robot hands, letting system builders and on-site teams handle transparent and mirrored objects.

  5. TIER IV, Inc. logo

    TIER IV, Inc. develops open-source autonomous driving software and reference designs that partners and organizations can build on.

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