# Gunnulf Martenson

> Gunnulf Martenson is a funding round investor at THE WORLD BANK backing Mobile and Wireless. See 1 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [THE WORLD BANK](https://shizune.co/investors/profile/the-world-bank-group)
- Location: Helsinki, Finland
- Total investments: 1
- Lead investor: 0%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/gunnulf-martenson-b0438218/

Gunnulf Martenson is a funding round investor at THE WORLD BANK in Helsinki focused on Mobile and Wireless. Gunnulf Martenson has over forty years of experience in the ICT industry in a variety of roles covering software and hardware design, network planning and consultancy. During this time he spent seven years with Nokia Telecommunications (now Nokia Siemens Networks). He worked for over ten years with private local telephone companies inFinland leading their international subsidiary, Finnet International for five years. He also was a member of the board of several of their software subsidiaries. In the early 1990s he was the telecommunications industry specialist in the International Finance Corporation (IFC) and is now a free-lance consultant to the World Bank. He holds a Master of Science degree from Stanford University in California and a Licentiate of Technology degree from Helsinki University of Technology in Finland.

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Mobile | 1 | 100% |
| Wireless | 1 | 100% |
| Information Technology | 1 | 100% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Altobridge | Altobridge wireless network solutions provide a lower capital and lower operating cost option for the delivery of voice and mobile broadband services, enabling mobile network operators to connect unconnected communities and enterprises at minimum cost.Central to this lie a series of patented and patent-pending technologies namely; Data at theEdge™ (data optimisation in wireless networks), Local Connectivity™ (local voice switching) and Split Architecture™ (transmission and power optimisation), all of which – individually and combined – drive down communications delivery costs for mobile network operators, by reducing backhaul and power consumption costs. | $7.8M |  |  |  |

1 of 1 investments shown.

## Co-investors
- [Intel Capital](https://shizune.co/investors/profile/intel-capital) — VC Fund, 1 deal together

## About THE WORLD BANK

VC Fund · Washington, United States

The World Bank is a vital source of financial and technical assistance to developing countries around the world. They are not a bank in the ordinary sense but a unique partnership to reduce poverty and support development. The World Bank Group comprises five institutions managed by their member countries. Established in 1944, the World BankGroup is headquartered in Washington, D.C. They have more than 10,000 employees in more than 120 offices worldwide. They provide low-interest loans, zero to low-interest credits, and grants to developing countries. These support a wide array of investments in such areas as education, health, public administration, infrastructure, financial and private sector development, agriculture, and environmental and natural resource management. Some of their projects are cofinanced with governments, other multilateral institutions, commercial banks, export credit agencies, and private sector investors. They also provide or facilitate financing through trust fund partnerships with bilateral and multilateral donors. Many partners have asked the Bank to help manage initiatives that address needs across a wide range of sectors and developing regions.

5 contacts available at THE WORLD BANK.

| Name | Title | Profile |
| --- | --- | --- |
| Boutheina Guermazi | Director for Regional Integration in Africa and MENA | https://shizune.co/investors/profile/boutheina-guermazi |
| Gunnulf Martenson | Free-lance consultant | https://shizune.co/investors/profile/gunnulf-martenson |
| Herve Villeroche | Executive Director for France | https://shizune.co/investors/profile/herve-villeroche |
| Massimo Morini | Senior Consultant | https://shizune.co/investors/profile/massimo-morini |
| Melanie Robinson | Executive Director for the United Kingdom | https://shizune.co/investors/profile/melanie-robinson-2 |

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## FAQ

### What does Gunnulf Martenson invest in?

Gunnulf Martenson invests primarily in Mobile, Wireless and Information Technology startups, most often at Funding Round stage. Most of the 1 investments tracked by Shizune back companies in Ireland. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### 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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