AK

Ad Ketelaars

Investor, Advisor and Board Member

📍 Singapore, Singapore🔄 Updated September 2026💼 5 investments📅 30 years investing🗓 Last invested Sep 2017
VC🌍 Singapore
5
Total investments
3
Early stage
0
Mid stage
0
Late stage
30y
Years active

Portfolio

4 investments · sorted by recency
All investments
Early stage
Mid stage
Late stage
Advisor, Investor
Sep 2017
We're a global team of scientists and engineers on a mission to make VR/AR/MR viable as the next computing platforms. We eliminate the eye strain and visual discomfort that plague today's technology, finally making it usable for extended periods for applications beyond gaming. Lemnis Technologies'​ Verifocal™ is the first software and hardware platform that works with the human eye to fix the vergence-accommodation conflict, creating a more immersive and comfortable VR experience. We're building the fundamental technology layer that will drive every head-mounted display in the next generation -- see how it works at https://youtu.be/7dvNRonmMQA Lemnis Technologies was founded in March 2017 in Singapore and now has 9 full-time employees, half of whom hold a PhD. Lemnis’ team members have written over 60 international publications and conducted research at some of the top academic institutions in the world, such as MIT, Brown, ETH Zurich, Inria, NUS, KAIST. We are backed by global investors including Wavemaker Partners and Entrepreneur First.
Board Member
Nov 2016
CyberTwice B.V. is a software development company focused on building Software-as-a-Service (SaaS) applications for Enterprise Access Control and Surveillance, integrated with Microsoft Teams. Services include CyberGate that enable a SIP video door station to communicate to Teams with live 2-way audio & video, and ATTEST, the Azure based (Teams) Recording solution for Compliance & Collaboration in the Financial Services, Public Safety and Energy/Utility sector. CyberTwice is located in Alkmaar, The Netherlands.
Non Executive Board Member
Sep 2015
The Future Is Personalised. Structo is a 3D printing solutions provider with a mission to build a completely personalised future through digital factories. Using innovative and proprietary technology, we develop novel digital manufacturing solutions to solve challenging manufacturing problems across industries. With expertise in additive manufacturing hardware, material sciences, software and automation systems, we deliver application-specific solutions to empower new manufacturing methods and scalable unit economics.
Non Executive Board Member
Aug 2015
Caringo was founded in 2005 to change the economics of storage by designing software from the ground up to solve the issues associated with relentless data growth. Caringo’s flagship product, Swarm, decouples data from applications and hardware providing a cloud and object storage platform for continued data access and analysis that continuously evolves while guaranteeing data integrity. To learn more about Caringo visit www.caringo.com or email us at info@caringo.com.
Experience · 11 entries
All (11)
Investments (5)
Founder (1)
Board (4)
2024
Senior Advisor and Chairman of the Investment Committee
Sep 2024
Antares Ventures is a pioneering early-stage (Series A/B) VC Fund that takes a strategic approach to investing in Deep Tech ventures that address critical challenges in Asias Growth Markets. We invest globally and focus on themes relevant to these markets, such as Decarbonization, Sustainable Agriculture, Sustainable Cities, and Accessible Healthcare.
2017
Advisor, Investor
Sep 2017
We're a global team of scientists and engineers on a mission to make VR/AR/MR viable as the next computing platforms. We eliminate the eye strain and visual discomfort that plague today's technology, finally making it usable for extended periods for applications beyond gaming. Lemnis Technologies'​ Verifocal™ is the first software and hardware platform that works with the human eye to fix the vergence-accommodation conflict, creating a more immersive and comfortable VR experience. We're building the fundamental technology layer that will drive every head-mounted display in the next generation -- see how it works at https://youtu.be/7dvNRonmMQA Lemnis Technologies was founded in March 2017 in Singapore and now has 9 full-time employees, half of whom hold a PhD. Lemnis’ team members have written over 60 international publications and conducted research at some of the top academic institutions in the world, such as MIT, Brown, ETH Zurich, Inria, NUS, KAIST. We are backed by global investors including Wavemaker Partners and Entrepreneur First.
Venture Partner
Aug 2017
Entrepreneurs First invests in exceptional individuals to build startups from scratch. We bring together talented outliers to develop their most ambitious ideas and raise money from the world’s best investors. Since pioneering Talent Investing in 2015, we’ve learned to recognize individuals with extraordinary futures before anyone else, embedding them in a community of ambitious peers and giving them the tools they need to succeed, fast. We back them before they have a company, a team, even before they have an idea, based purely on talent. EF’s portfolio is now collectively valued at over $16B, and includes companies such as Aztec, Cleo, Magdrive, Neptune, Omnea, Opply, PolyAI, Tractable, and many more. EF is backed by some of the worlds leading founders and investors, including Founders Fund, Greylock, John Collison (founder – Stripe), Patrick Collison (founder – Stripe), Reid Hoffman (founder – LinkedIn), Eric Schmidt (former CEO - Google), Demis Hassabis (founder – Google DeepMind ), Taavet Hinrikus (founder – Wise), Matt Mullenweg (founder – WordPress), Charlie Songhurst (Board member – Meta), Christa Davies (Board member – Stripe), Lachy Groom (founder – Physical Intelligence), Aidan Gomez (founder – Cohere), Mati Staniszewski (founder – ElevenLabs), Danny Rimer (Partner - Index Ventures), Matt Cohler (former General Partner - Benchmark). We exist to make great companies happen that otherwise wouldn’t. For more information about Entrepreneurs First, visit www.joinef.com Were hiring! Join our global team and experience firsthand the workings of a globally unique talent investor working with cutting edge entrepreneurs on world changing technologies: https://www.joinef.com/about/careers
2016
Board Member
Nov 2016
CyberTwice B.V. is a software development company focused on building Software-as-a-Service (SaaS) applications for Enterprise Access Control and Surveillance, integrated with Microsoft Teams. Services include CyberGate that enable a SIP video door station to communicate to Teams with live 2-way audio & video, and ATTEST, the Azure based (Teams) Recording solution for Compliance & Collaboration in the Financial Services, Public Safety and Energy/Utility sector. CyberTwice is located in Alkmaar, The Netherlands.
Director
May 2016
Apsara Investments Pte Ltd seeks to create value by investing in B2B tech companies mainly active in SE Asia. Typically Apsara invests at the “seed” or “pre-series A” stage as well as in “funds” investing in the same category.
Show all 11 entries ↓
Investment activity
1996–2017 · 5 investments
19961201522016120171
Recent (last 2 years)Earlier