# Cem Sertoglu

> Cem Sertoglu is a seed investor at Earlybird Venture Capital backing E-Commerce and Marketplace. See 34 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [Earlybird Venture Capital](https://shizune.co/investors/profile/earlybird-venture-capital)
- Location: New York, United States
- Total investments: 34
- Last investment: Oct 2025
- Lead investor: 38%
- Last updated: Aug 2026
- LinkedIn: http://www.linkedin.com/in/csertoglu
- X (Twitter): http://twitter.com/csertoglu
- Website: https://cemsertoglu.com/

Cem Sertoglu is an internet and technology venture capitalist and entrepreneur. He is currently a Managing Partner at Bek Ventures, a European venture investment firm focusing on technology and health technology companies.He is also a managing partner at Young Turk Ventures, an internet-focused investment firm. From 2008 to 2009, Sertoglu was apartner at iLab Ventures, the venture capital arm of AccessTurkey Capital Group that is focused on early-stage through late-stage growth equity investments, primarily in on-line consumer services companies and technology-driven business services companies in Turkey.Prior to these, Sertoglu founded SelectMinds, a provider of cloud-based, social talent sourcing apps that allow companies to use social networks such as Facebook to recruit employees. He served as its CEO from 1999 to 2005. The company was bought by Oracle in 2012.Sertoglu's investment highlights include: GittiGidiyor, the first major Turkish internet exit to eBay in 2011; YemekSepeti, the leading online meal delivery marketplace in Turkey; Grupanya, Turkey’s leading daily deal business; and Wikimart.ru, a leading Russian e-commerce platform. Other investments include: HipWay, CivicSolar, Lofty, Lime&Tonic, Gezlong and Vivense Home & Living.Sertoglu attended the University of Texas at Austin and received his bachelor's degree in Economics in 1993. He also attended Robert College from 1982 to 1989. He publishes a blog on Venture Capital and technology, titled SortiPreneur.

## Round sizes

| Stage | Round size |
| --- | --- |
| Seed | $455k–$8M |
| Series A | $1.5M–$45M |
| Series B | $24M–$80M |

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| E-Commerce | 2 | 6% |
| Marketplace | 2 | 6% |
| Financial Services | 2 | 6% |
| CRM | 1 | 3% |
| Solar | 1 | 3% |

53 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 6 | 18% |
| Series A | 6 | 18% |
| Series B | 3 | 9% |
| Series C | 2 | 6% |
| Series D | 2 | 6% |

9 stages tracked in total.

### Country

| Country | Investments | Share |
| --- | --- | --- |
| Turkey | 5 | 15% |
| United States | 5 | 15% |
| Germany | 1 | 3% |
| Ireland | 1 | 3% |
| United Kingdom | 1 | 3% |

6 countries tracked in total.

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| VitVio | Vitvio drives efficiency, safety, and quality of care in the operating theater by tracking workflows, staff movement, and equipment positioning using the latest computer vision AI technologies. | $8M | Seed | Oct 23, 2025 |  |
| Midas | Midas is the first neobroker of Turkey, providing zero commission Turkish and American stocks. | $80M | Series B | Aug 19, 2025 |  |
| Picus | Picus developed a novel and holistic approach to IT security: Continuous Security Validation. The Picus Security Validation Platform simulates real-world cyber threats to evaluate and optimize cybersecurity measures, ensuring organizations are prepared for potential security breaches. Picus enables businesses to test their security controlscontinuously, identifying gaps and weaknesses in their defenses. The company's technology integrates with existing security tools, providing actionable insights to enhance an organization’s ability to detect, prevent, and respond to cyber-attacks. | $45M | Series C | Sep 19, 2024 |  |
| Midas | Midas is the first neobroker of Turkey, providing zero commission Turkish and American stocks. | $45M | Series A | Apr 19, 2024 |  |
| VitVio | Vitvio drives efficiency, safety, and quality of care in the operating theater by tracking workflows, staff movement, and equipment positioning using the latest computer vision AI technologies. | $2M | Pre-Seed | Mar 30, 2024 |  |
| VitVio | Vitvio drives efficiency, safety, and quality of care in the operating theater by tracking workflows, staff movement, and equipment positioning using the latest computer vision AI technologies. | $2M | Pre-Seed | Mar 30, 2024 |  |
| Upstash | Upstash develops serverless data platform for developers of data-intensive applications using a consumption-based pricing model. | $10M | Series A | Feb 08, 2024 |  |
| Upstash | Upstash develops serverless data platform for developers of data-intensive applications using a consumption-based pricing model. | $10M | Series A | Feb 08, 2024 |  |
| Upstash | Upstash develops serverless data platform for developers of data-intensive applications using a consumption-based pricing model. | $1.9M | Seed | Mar 17, 2022 |  |
| Picus | Picus developed a novel and holistic approach to IT security: Continuous Security Validation. The Picus Security Validation Platform simulates real-world cyber threats to evaluate and optimize cybersecurity measures, ensuring organizations are prepared for potential security breaches. Picus enables businesses to test their security controlscontinuously, identifying gaps and weaknesses in their defenses. The company's technology integrates with existing security tools, providing actionable insights to enhance an organization’s ability to detect, prevent, and respond to cyber-attacks. | $24M | Series B | Oct 20, 2021 |  |

10 of 34 investments shown.

## Co-investors
- [Earlybird Venture Capital](https://shizune.co/investors/profile/earlybird-venture-capital) — VC Fund, 6 deals together
- [Tiny Supercomputer Investment Company](https://shizune.co/investors/profile/tiny-vc) — VC Fund, 5 deals together
- [Valar Ventures](https://shizune.co/investors/profile/valar-ventures) — VC Fund, 5 deals together
- [Allianz X](https://shizune.co/investors/profile/allianz-x) — VC Fund, 4 deals together
- [Andreessen Horowitz](https://shizune.co/investors/profile/andreessen-horowitz) — VC Fund, 4 deals together
- [Greyhound Capital](https://shizune.co/investors/profile/greyhound-capital) — VC Fund, 4 deals together

## About Earlybird Venture Capital

VC Fund · Berlin, Germany

Founded in 1997, Earlybird invests in all development and growth phases of technology companies. Among the most experienced venture investors in Europe, Earlybird offers its portfolio companies not only financial resources but also strategic support plus access to an international network and capital markets. With EUR 2 billion under management,eight IPOs and 30 trade sales, Earlybird is one of the most established and active venture capital firms in Europe.

5 contacts available at Earlybird Venture Capital.

| Name | Title | Profile |
| --- | --- | --- |
| Andre Retterath | Principal | https://shizune.co/investors/profile/andre-retterath |
| Annette Schiering | Financial Analyst | https://shizune.co/investors/profile/annette-schiering |
| Catrin Schmidt | Team Assistant | https://shizune.co/investors/profile/catrin-schmidt |
| Cem Sertoglu | Co-Founder and Managing Partner | https://shizune.co/investors/profile/m-cem-sertoglu |
| Christian Nagel | Managing Partner | https://shizune.co/investors/profile/dr-christian-nagel |

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## FAQ

### What does Cem Sertoglu invest in?

Cem Sertoglu invests primarily in E-Commerce, Marketplace and Financial Services startups, most often at Seed and Series A stage. Most of the 34 investments tracked by Shizune back companies in Turkey. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### What is Cem Sertoglu's check size?

Cem Sertoglu typically joins rounds of $455k–$8M at Seed, $1.5M–$45M at Series A and $24M–$80M at Series B. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Cem Sertoglu participates in.

### When did Cem Sertoglu last invest?

The most recent investment recorded for Cem Sertoglu closed in Oct 2025. Shizune tracks 34 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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