# Burak Dayıoğlu

> Burak Dayıoğlu is a seed investor at ATAR Labs backing Rental, Travel and Boating. See 10 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [ATAR Labs](https://shizune.co/investors/profile/atar-labs)
- Total investments: 10
- Last investment: Feb 2025
- Lead investor: 0%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/burakdayioglu/
- X (Twitter): https://twitter.com/dayioglu

Burak Dayıoğlu is a seed investor at ATAR Labs focused on Rental and Travel. Dayioglu holds a BSc and MSc in Computer Engineering and holds CISSP, CSSLP, CRISC, CIPT certificates with a strong technology background. He is an active angel investor.

## Round sizes

| Stage | Round size |
| --- | --- |
| Seed | $170k–$1M |
| Convertible Note | $180k–$500k |

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Rental | 1 | 10% |
| Travel | 1 | 10% |
| Boating | 1 | 10% |
| Sailing | 1 | 10% |
| Tourism | 1 | 10% |

17 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 5 | 50% |
| Angel | 2 | 20% |
| Convertible Note | 2 | 20% |

### Country

| Country | Investments | Share |
| --- | --- | --- |
| Turkey | 4 | 40% |
| Estonia | 1 | 10% |
| United States | 1 | 10% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Onlayer | Detect, monitor and remediate data breach and compliance risks of your company and your merchants. | $1M | Seed | Feb 04, 2025 |  |
| Fizbot | Fizbot enables real estate consultants to easily keep up with the speed and needs of the service industry. It is a technology assistant designed for the real estate industry. For eneuiry email and telephone number is available on their website. | $500K | Convertible Note | Jan 02, 2023 |  |
| heybooster | heybooster is the creator of a platform for marketing analysis that aids e-commerce managers in finding chances for revenue growth and in making better choices. It provides clients with digital reporting, online meetings, online communication, an online project management system, and an online playbook that helps them discover problems, findpossibilities for revenue growth, and cut expenses. | $170.3K | Seed | Sep 16, 2022 |  |
| Viravira | Viravira.co is Europe's leading online yacht charter and sea experiences platform, connecting boat owners with those who want to rent a boat. viravira.co was founded in 2016 with the mission to make the yacht booking experience easier, more transparent and safer for the sailing community.We continue to work hard to make yacht holidays one ofthe leading holiday options for travellers, to make sailing holidays more accessible, to offer instant booking opportunities and to provide an easy and reliable yacht booking experience. | $631K | Seed | Jan 20, 2022 |  |
| Fizbot | Fizbot enables real estate consultants to easily keep up with the speed and needs of the service industry. It is a technology assistant designed for the real estate industry. For eneuiry email and telephone number is available on their website. | $594.4K | Seed | Jan 17, 2022 |  |
| Audit Now | Audit Now is a software platform that allows auditors and auditees to exchange data, information, and evidence. They create beautiful reports based on audit findings. They generate and report on timelines for audit projects. |  | Angel | Nov 25, 2021 |  |
| Makswin Real Estate Technologies, Inc. | Cutting-edge technological solutions aimed at data inconsistency and inefficiencies in the real estate industry. | $500K | Seed | Nov 22, 2021 |  |
| Onlayer | Detect, monitor and remediate data breach and compliance risks of your company and your merchants. | $44K | Angel | Jul 02, 2021 |  |
| Onlayer | Detect, monitor and remediate data breach and compliance risks of your company and your merchants. | $172.6K | Seed | Jul 02, 2021 |  |
| Onlayer | Detect, monitor and remediate data breach and compliance risks of your company and your merchants. | $180K | Convertible Note | Jun 23, 2021 |  |

10 of 10 investments shown.

## Co-investors
- [Leap Investment](https://shizune.co/investors/profile/leap-investment) — VC Fund, 4 deals together
- [Maxis](https://shizune.co/investors/profile/maxis-19c6) — VC Fund, 3 deals together
- [Aegean Ventures](https://shizune.co/investors/profile/aegean-ventures) — VC Fund, 1 deal together
- [Future Impact Fund](https://shizune.co/investors/profile/future-impact-fund) — VC Fund, 1 deal together
- [Global Trust Ventures](https://shizune.co/investors/profile/global-trust-ventures-252b) — VC Fund, 1 deal together
- [Lima Ventures](https://shizune.co/investors/profile/lima-ventures) — VC Fund, 1 deal together

## About ATAR Labs

VC Fund · London, United Kingdom

ATAR Labs builds next generation Security Orchestration, Automation and Response (SOAR) platforms. Our flagship product ATAR helps SOC teams to become more vigilant and effective while helping them achieve more. ATAR has integrations with more than 100 different technologies and orchestrate and automate investigation and response activitiesspanning those platforms and more.

3 contacts available at ATAR Labs.

| Name | Title | Profile |
| --- | --- | --- |
| Burak Dayıoğlu | Co-Founder & CEO | https://shizune.co/investors/profile/burak-dayioglu |
| Gokhan Say | Co-Founder | https://shizune.co/investors/profile/gokhan-say |
| Murat Tora | Co-Founder | https://shizune.co/investors/profile/murat-tora |

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### Similar industry
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### Similar stage
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### Similar country
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## FAQ

### What does Burak Dayıoğlu invest in?

Burak Dayıoğlu invests primarily in Rental, Travel and Boating startups, most often at Seed and Angel stage. Most of the 10 investments tracked by Shizune back companies in Turkey. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### What is Burak Dayıoğlu's check size?

Burak Dayıoğlu typically joins rounds of $170k–$1M at Seed and $180k–$500k at Convertible Note. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Burak Dayıoğlu participates in.

### When did Burak Dayıoğlu last invest?

The most recent investment recorded for Burak Dayıoğlu closed in Feb 2025. Shizune tracks 10 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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