Csaba Kakosy
Managing Partner @ Day One Capital
Budapest, Hungary
Csaba Kakosy is a seed investor at Day One Capital in Budapest focused on Software and Automotive. Csaba Kakosy is based out of Budapest, Budapest, and is the Managing Partner of Day One Capital. Csaba previously worked at Szallas.hu as a Chairman Of The Board. Csaba Kakosy attended the Eötvös Loránd University.
- Total investments:
- 9
- Last investment:
- Lead investor:
- 44%
Last updated:
For AI agents: llms.txt
Industries Csaba Kakosy invests in
Stages Csaba Kakosy invests in
Countries Csaba Kakosy invests in
Contacts
| Type | Contact | Validation |
|---|---|---|
| Work email | ||
| Personal email | ||
| Work phone | ||
| Personal phone | ||
| Socials |
Investment Focus
Industry
- Software 3 (33%)
- Automotive 2 (22%)
- Drones 1 (11%)
- Travel 1 (11%)
- Fashion 1 (11%)
Stage
- Seed 3 (33%)
- Series A 2 (22%)
- Series B 1 (11%)
- Venture - Series Unknown 1 (11%)
Country
- Hungary 3 (33%)
- United States 1 (11%)
- The Netherlands 1 (11%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| Is there enough charge in the car for the next trip? When will the vehicle go out of charge? What is the optimal route? These are questions that arise every day when driving an EV. And these just get a lot worse if we are not talking about individual vehicles but 100s of them like electric van delivery fleets, public transport with e-buses or e-carcompany fleets. For them, electric vehicles are much more expensive and difficult to operate than normal petrol or diesel ones, not to mention the constant fear of running out of charge with 100s of vehicles at the same time. Volteum solves these issues for them every day.At Volteum our goal is to enable every company to use EVs as easily, effectively and economically as internal combustion engine vehicles. For this we are developing a software with which fleet operators can optimize their vehicles every day. The product has three main pillars: Firstly, we model and predict the energy consumption and the battery state of charge along the routes with our EV simulation engine. Secondly, based on this we plan optimal trips for the vehicles taking into account the charging needs, time, distance and costs as well. Thirdly, we also manage the daily tasks of the fleet and optimize their operation based on live data.With Volteum electric fleets save money as we optimize their fleet composition, the daily tasks, routes and the charging needs cost-effectively. They can also make sure none of the vehicles will go out of charge thanks to our simulation engine. Last but not least we save loads of human resources, manual calculations and planning with our algorithms. With this we can ensure that all tasks and routes will be covered just as easily and comfortably as with their old vehicles. | $2.9M / Seed / Jun 08, 2026 | ||
| ABZ Innovation specializes in the development and production of drones and related accessories, backed by a solid background of experts and researcher. | $8.2M / Venture - Series Unknown / Jan 22, 2026 | ||
| Perciv provides artificial intelligence (AI)-based software solutions to unlock the latent possibilities of radars and allow resilient and economical autonomous systems with Lidar-like performance even in severe weather circumstances. | $2.6M / Seed / Dec 12, 2024 | ||
| Commsignia specializes in the research and development, manufacturing and distribution of cooperative intelligent transportation systems. Its product line includes a V2X Communication Software Stack and Commsignia’s own security stack implementation, Hybrid V2X/ADAS Safety Applications, a V2X Simulator, On-Board Units (OBU) and Roadside Units(RSU).The company was founded in 2012 and is headquartered in Santa Clara, California. | $15M / Series B / Sep 05, 2023 | ||
| Is there enough charge in the car for the next trip? When will the vehicle go out of charge? What is the optimal route? These are questions that arise every day when driving an EV. And these just get a lot worse if we are not talking about individual vehicles but 100s of them like electric van delivery fleets, public transport with e-buses or e-carcompany fleets. For them, electric vehicles are much more expensive and difficult to operate than normal petrol or diesel ones, not to mention the constant fear of running out of charge with 100s of vehicles at the same time. Volteum solves these issues for them every day.At Volteum our goal is to enable every company to use EVs as easily, effectively and economically as internal combustion engine vehicles. For this we are developing a software with which fleet operators can optimize their vehicles every day. The product has three main pillars: Firstly, we model and predict the energy consumption and the battery state of charge along the routes with our EV simulation engine. Secondly, based on this we plan optimal trips for the vehicles taking into account the charging needs, time, distance and costs as well. Thirdly, we also manage the daily tasks of the fleet and optimize their operation based on live data.With Volteum electric fleets save money as we optimize their fleet composition, the daily tasks, routes and the charging needs cost-effectively. They can also make sure none of the vehicles will go out of charge thanks to our simulation engine. Last but not least we save loads of human resources, manual calculations and planning with our algorithms. With this we can ensure that all tasks and routes will be covered just as easily and comfortably as with their old vehicles. | $1.3M / Seed / Nov 09, 2022 | ||
| Commsignia specializes in the research and development, manufacturing and distribution of cooperative intelligent transportation systems. Its product line includes a V2X Communication Software Stack and Commsignia’s own security stack implementation, Hybrid V2X/ADAS Safety Applications, a V2X Simulator, On-Board Units (OBU) and Roadside Units(RSU).The company was founded in 2012 and is headquartered in Santa Clara, California. | $11M / Series A / Aug 15, 2019 | ||
| Commsignia specializes in the research and development, manufacturing and distribution of cooperative intelligent transportation systems. Its product line includes a V2X Communication Software Stack and Commsignia’s own security stack implementation, Hybrid V2X/ADAS Safety Applications, a V2X Simulator, On-Board Units (OBU) and Roadside Units(RSU).The company was founded in 2012 and is headquartered in Santa Clara, California. | Seed / Dec 23, 2016 | ||
| ÁERON’S DESIGN IS CHARACTERIZED BY THE UNIQUE COMBINATION OF SUPERB QUALITY, INNOVATIVE CRAFTMANSHIP, AND EFFORTLESS ELEGANCE. EVERY COLLECTION FOCUSES ON REINVENTING TRADITIONAL TAILORING TECHNICS WHILEONLY USING FINEST MATERIALS SUCH AS A DISTINCTIVE SUEDE JAPANESE LEATHER THAT HAS BECOME A SIGNATURE FABRIC OF ÁERON. THE DIFFICULT BALANCE OFCREATING ONE ARTFUL PACKAGE, WHERE WORK AND PLAY HARMONIZES TOGETHER, FORMS THE MINIMAL YET FEMININE SENSUALITY OF A DECADE-DEFINING ÁERON LOOK. ÁERON ENCOMPASSES A RICH VARIETY OF HIGH-WAISTED TAILORED PANTS, ASYMMETRICAL COATS, OVERSIZE SWEATERS, AND MINIMALISTIC DRESSES. | Series A / Aug 01, 2014 | ||
| See all 9 investments → | |||
Co-Investors
About Day One Capital
Day One Capital is an early-stage venture capital fund that works with entrepreneurs and technology start-ups from Europe. As an early-stage technology investor, managing privately financed funds, Day One Capital seeks to find and join the most exciting Central Eastern European teams on their global mission.
Day One Capital Contacts
| Name | Phone | Socials | |
|---|---|---|---|
András Fehér
Associate
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Csaba Kakosy
Managing Partner
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Dóra Branyiczki
Principal
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Elek Straub
Managing Partner and Chairman of the Board
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Gyorgy Simo
Managing Partner, CEO
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FAQ
What does Csaba Kakosy invest in?
Csaba Kakosy invests primarily in Software, Automotive and Drones startups, most often at Seed and Series A stage. Most of the 9 investments tracked by Shizune back companies in Hungary. The Investment Focus section breaks down every industry, stage and country in the portfolio.
How do I contact Csaba Kakosy?
Public channels for Csaba Kakosy include LinkedIn, X (Twitter) and Facebook. For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.
When did Csaba Kakosy last invest?
The most recent investment recorded for Csaba Kakosy closed in Jun 2026. Shizune tracks 9 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 Oct 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
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