# CSK Venture Capital

> CSK Venture Capital is a VC fund in Tokyo backing Software, Health Care and Biotechnology. See 12 investments, check sizes, portfolio. Updated Aug 2026.

- Type: VC Fund
- Location: Tokyo, Japan
- Total investments: 12
- Last investment: Jan 2010
- Lead investor: 8%
- Last updated: Aug 2026
- Website: http://www.cskvc.co.jp

CSK Venture Capital is a VC fund in Tokyo focused on Software and Health Care. CSK Venture Capital invests in companies of Japan and overseas, focusing on the areas of Information Technology and Life Science. They provide IPO and management consulting services.

## Round sizes

| Stage | Round size |
| --- | --- |
| Series A | $1.5M–$13M |
| Series C | $24M–$30M |

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Software | 4 | 33% |
| Health Care | 3 | 25% |
| Biotechnology | 3 | 25% |
| Information Technology | 3 | 25% |
| Security | 2 | 17% |

28 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Funding Round | 4 | 33% |
| Series A | 3 | 25% |
| Series C | 2 | 17% |
| Series D | 2 | 17% |
| Series B | 1 | 8% |

### Country

| Country | Investments | Share |
| --- | --- | --- |
| United States | 7 | 58% |
| Israel | 2 | 17% |
| France | 1 | 8% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| MicroCHIPS | Microchips Biotech, Inc. is dedicated to improving the lives of patients by revolutionizing drug delivery. Our proprietary microchip-based implant can store and release precise doses of drugs over months and years. The implant, which is placed under the skin by a trained physician during a simple office procedure using local anesthesia, can bewirelessly activated or deactivated by a physician or patient, without requiring removal. In addition, physicians can wirelessly modify the frequency or dose of the drug to meet the individual needs of each patient. | $16.5M |  | Jan 07, 2010 |  |
| Ecrio | Ecrio provides optimized, standards compliant software clients and development resources to mobile phone service providers and device manufacturers for mobile commerce and real time communications. The Ecrio Mobile Communications Client Suite (MCCS) transforms everyday applications into communication-rich applications. The MCCS frameworkreduces the complexity and effort required to add rich communication functions to applications ranging from Voice and SMS to video telephony, content sharing, social communications and enterprise solutions. Applications running in common application environments, developed using standard SDK tools on a wide range of device types and platforms can be easily upgraded to communication-rich applications using the framework’s rich set of functions and its simple access methods.The Ecrio MCCS solves the challenges of enabling and sharing high-value and complex communication capabilities among multiple applications and devices, reducing the incremental effort, cost, and risk of deploying and using new LTE and IMS service capabilities. It accelerates application development resulting in more uses and optimized experiences expanding the individual value and market reach and achieving a higher value for the service capability investment. | $24M | Series C | Sep 19, 2007 |  |
| Exanet | Exanet Ltd. designs network attached storage systems. It offers ExaStore, a solution with a clustered distributed file system; ExaSync software that offers a method of protecting and recovering data, providing mirroring between local or remote ExaStore systems; and EX1500, an integrated server pre-installed with the ExaStore clustered distributedstorage operating system. The company also provides ExaAdmin, a Web-based console and command-line interface that offers centralized configuration, management, and monitoring of ExaStore clustered storage solution from a single point; ExaStore, which provides monitoring for the cluster status, filesystem performance, and protocol information; and ExaVolumes that offers on-demand provisioning, which allows administrators to allocate capacity independently of physical storage configuration. In addition, it offers ExaSnapshots, which offers online point-in-time data protection; ExaRestore that allows administrators to recover data sets in one step. Further, the company’s solutions include data protection, digital media, disaster recovery, global content delivery, high performance computing, hosted storage services, technical applications, and Web services. It serves media and entertainment, telecom and service providers, Internet, manufacturing and imaging, enterprise, education, government, software and semiconductor industries. Exanet Ltd. was founded in 2000 and is headquartered in Ra'anana, Israel with offices in United States, United Kingdom, Germany, France, and Japan. | $18M |  | Jun 25, 2007 |  |
| DxO Labs | DxO Labs SA engages in the development and sale of digital image processing products and solutions in France. Its photography products include DxO Optics Pro, a digital photography software application for image correction and enhancement; and DxO FilmPack that gives digital images the style of the conventional films, and digitally simulates thecolors. The company also develops and licenses intellectual property of optics and silicon architectures in the areas of embedded still and video image processing for camera phones and digital cameras. In addition, DxO Labs SA offers DxO Analyzer, an image quality evaluation solution. Its customers include consumer electronics manufacturers, such as digital camera vendors and camera phone vendors; imaging components suppliers, including camera module manufacturers, sensor vendors, and processor vendors; and photographers, as well as photography journalists and imaging experts. The company offers its products through distributors and resellers. DxO Labs SA was formerly known as DO Labs SA. The company was founded in 2002 and is based in Boulogne, France. DxO Labs has additional offices in the United States, Japan, and Korea. | $12.8M | Series A | Jan 30, 2006 |  |
| Sphera Corporation | Sphera is the global provider of Web hosting automation and management software, today announced that it has expanded its management team and moved its corporate headquarters to Denver, Colorado. In the coming months, Sphera will continue to leverage recent funding to support and build its infrastructure in high-potential markets, strengthen itstechnology portfolio, increase sales and marketing initiatives and increase support for its global customers. | $3M |  | Jul 05, 2005 |  |
| Perlegen Sciences | Perlegen Sciences engages in the discovery and commercialization of genetic variations that provide physicians with information to improve the clinical decision-making process and patient treatment outcomes. Its products include MammaPLUS, a breast cancer risk stratifier and a panel of common genetic variants that stratifies individual genetic andbackground/clinical risk for those at moderately elevated risk for non-familial breast cancer, as well as impacts the risk for developing invasive breast cancer; and Genotype Browser Website that provides a way to access and view the results of a study of genetic variation in various diverse human populations. Perlegen Sciences, Inc. was founded in 2000 and is based in Mountain View, California. | $74M | Series D | Feb 28, 2005 |  |
| Horizon Semiconductors | Horizon Semiconductors Ltd. is a fabless semiconductor company, develops integrated system-on-a-chip (SoCs) solutions. | $5M | Series A | Nov 21, 2003 |  |
| Game Trust | Game Trust, Inc. provides infrastructure for community and commerce applications in online games and entertainment. The company develops Game Frame, a platform for online casual games and entertainment designed to support audience of the online casual game playing market. Its Game Frame platform is licensed by Web site operators and game developersto provide users with online entertainment experience, as well as to integrate community features and commerce capabilities in new or existing titles. The company has operations in the United States and Europe. It serves game distributors and developers. The company was founded in 2002 and is headquartered in New York, New York. As of October 1, 2007, Game Trust, Inc. operates as a subsidiary of RealNetworks, Inc. | $1.5M | Series A | Oct 01, 2003 |  |
| Perlegen Sciences | Perlegen Sciences engages in the discovery and commercialization of genetic variations that provide physicians with information to improve the clinical decision-making process and patient treatment outcomes. Its products include MammaPLUS, a breast cancer risk stratifier and a panel of common genetic variants that stratifies individual genetic andbackground/clinical risk for those at moderately elevated risk for non-familial breast cancer, as well as impacts the risk for developing invasive breast cancer; and Genotype Browser Website that provides a way to access and view the results of a study of genetic variation in various diverse human populations. Perlegen Sciences, Inc. was founded in 2000 and is based in Mountain View, California. | $30M | Series C | Jan 28, 2003 |  |
| Sphera Corporation | Sphera is the global provider of Web hosting automation and management software, today announced that it has expanded its management team and moved its corporate headquarters to Denver, Colorado. In the coming months, Sphera will continue to leverage recent funding to support and build its infrastructure in high-potential markets, strengthen itstechnology portfolio, increase sales and marketing initiatives and increase support for its global customers. | $20M | Series B | Jan 17, 2002 |  |

10 of 12 investments shown.

## Co-investors
- [Bank of America](https://shizune.co/investors/profile/bank-of-america) — VC Fund, 2 deals together
- [Gemini Israel Ventures](https://shizune.co/investors/profile/gemini-israel-funds) — VC Fund, 2 deals together
- [Jerusalem Venture Partners (JVP)](https://shizune.co/investors/profile/jerusalem-venture-partners) — VC Fund, 2 deals together
- [Maverick Ventures](https://shizune.co/investors/profile/maverick-ventures) — VC Fund, 2 deals together
- [SB Life Science](https://shizune.co/investors/profile/sb-life-science) — VC Fund, 2 deals together
- [TLcom Capital Partners](https://shizune.co/investors/profile/tlcom-capital-partners) — VC Fund, 2 deals together

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## FAQ

### What does CSK Venture Capital invest in?

CSK Venture Capital invests primarily in Software, Health Care and Biotechnology startups, most often at Funding Round and Series A stage. Most of the 12 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### What is CSK Venture Capital's check size?

CSK Venture Capital typically joins rounds of $1.5M–$13M at Series A and $24M–$30M at Series C. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds CSK Venture Capital participates in.

### When did CSK Venture Capital last invest?

The most recent investment recorded for CSK Venture Capital closed in Jan 2010. Shizune tracks 12 investments in total for this profile, including round sizes, stages and portfolio companies, all sourced from confirmed public funding rounds and refreshed monthly.

### Is Shizune's investor data accurate?

Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Aug 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.

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