David Wallerstein
Chief eXploration Officer and Senior Executive Vice President @ Tencent
United States
David Wallerstein is a seed investor at Tencent in United States focused on Mobile and Health Care. David A.M. Wallerstein is based out of Israel and is the senior advisor of Tencent. David previously worked at Tencent as a Chief eXploration Officer, Senior Executive Vice President. David A.M. Wallerstein attended the University of California, Berkeley.
- Total investments:
- 13
- Last investment:
- Lead investor:
- 31%
Last updated:
For AI agents: llms.txt
Industries David Wallerstein invests in
Stages David Wallerstein invests in
Countries David Wallerstein invests in
Round sizes
Contacts
| Type | Contact | Validation |
|---|---|---|
| Work email | ||
| Personal email | ||
| Work phone | ||
| Personal phone | ||
| Socials |
Round size
- Seed
- $1.6M–$4.6M
- Series B
- $11M–$90M
Investment Focus
Industry
- Mobile 3 (23%)
- Health Care 2 (15%)
- Artificial Intelligence 2 (15%)
- Video 1 (8%)
- Gaming 1 (8%)
Stage
- Seed 4 (31%)
- Series B 3 (23%)
- Series A 1 (8%)
- Series C 1 (8%)
- Debt Financing 1 (8%)
Country
- United States 3 (23%)
- Israel 1 (8%)
- Germany 1 (8%)
- Iceland 1 (8%)
- Nigeria 1 (8%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| Reask is a science and technology company that focuses on natural hazard modeling. Reask offers real-time, post-event, and longer-term AI solutions for global weather-related catastrophes by Global Risk mapping and probabilistic trend forecasting of catastrophe risk analytics. | $4.6M / Seed / Jun 15, 2023 | ||
| Lilium is an aviation company developing an emissions-free regional air mobility service. It has designed and prototyped the Lilium Jet, a brand-new type of aircraft that will enable it to deliver regional journeys that are considerably faster than rail or road, yet competitive in price. The demonstrator aircraft first flew in 2019 and is afive-seater, fully-electric aircraft that can take-off and land vertically (VTOL). | $119M / Post-IPO Equity / Nov 23, 2022 | ||
| Reask is a science and technology company that focuses on natural hazard modeling. Reask offers real-time, post-event, and longer-term AI solutions for global weather-related catastrophes by Global Risk mapping and probabilistic trend forecasting of catastrophe risk analytics. | Seed / Jan 19, 2022 | ||
| Phytech provides growers with a decision support service to increase their yields and to optimize irrigation. The service is based on innovative plant sensors which monitor the plant's growth in real-time and provide the grower critical alerts through the web and mobile applications. | $23.5M / Series C / Sep 22, 2020 | ||
| Lilium is an aviation company developing an emissions-free regional air mobility service. It has designed and prototyped the Lilium Jet, a brand-new type of aircraft that will enable it to deliver regional journeys that are considerably faster than rail or road, yet competitive in price. The demonstrator aircraft first flew in 2019 and is afive-seater, fully-electric aircraft that can take-off and land vertically (VTOL). | $240M / Venture - Series Unknown / Mar 23, 2020 | ||
| Reliance Health is a healthcare company using technology to make healthcare more affordable and accessible. Using an integrated approach that includes affordable health insurance, telemedicine, and a combination of partner and proprietary healthcare facilities. | $6M / Series A / Jan 01, 2020 | ||
| Phytech provides growers with a decision support service to increase their yields and to optimize irrigation. The service is based on innovative plant sensors which monitor the plant's growth in real-time and provide the grower critical alerts through the web and mobile applications. | $11M / Series B / Sep 28, 2017 | ||
| Teatime Games is an Iceland-based gaming startup that reinvents social games. | $1.6M / Seed / Sep 27, 2017 | ||
| Lilium is an aviation company developing an emissions-free regional air mobility service. It has designed and prototyped the Lilium Jet, a brand-new type of aircraft that will enable it to deliver regional journeys that are considerably faster than rail or road, yet competitive in price. The demonstrator aircraft first flew in 2019 and is afive-seater, fully-electric aircraft that can take-off and land vertically (VTOL). | $90M / Series B / Sep 05, 2017 | ||
| Reliance Health is a healthcare company using technology to make healthcare more affordable and accessible. Using an integrated approach that includes affordable health insurance, telemedicine, and a combination of partner and proprietary healthcare facilities. | $2.3M / Seed / Mar 31, 2017 | ||
| See all 13 investments → | |||
Co-Investors
About Tencent
Tencent is an internet service portal offering value-added internet, mobile, telecom, and online advertising services. Its communications and social platforms Weixin and QQ connect users with each other, with digital content and daily life services in just a few clicks. Tencent has maintained steady growth under its user-oriented operating strategies. It provides value-added internet, mobile, and telecom services, as well as online advertising under the strategic goal of providing users with "one-stop online lifestyle services." Tencent’s Internet platforms in China – QQ (QQ Instant Messenger), WeChat, QQ.com, QQ Games, Qzone, 3g.QQ.com, SoSo, PaiPai, and Tenpay – aim to address the various needs of internet users, including communication, information, entertainment, e-commerce, and others. In September 2013, Tencent's market valuation rose to $101 billion, and as of November 21, 2013, QQ had 2 billion active users and WeChat had 650 million monthly active users. The numbers of active users for QQ mail, Qzone, Tencent Weibo, and QQ news were 274 million, 626 million, 220 million, and 150 million, respectively. Tencent was founded in November of 1998. In April 2000, the IDG and PCCW invested a total of $2.2 million dollars in the company. Tencent was listed on the Hong Kong Stock Exchange (SEHK) on June 16, 2004. Baidu, Alibaba, and Netease are Tencent's major competitors.
Tencent Contacts
| Name | Phone | Socials | |
|---|---|---|---|
Hongwei Chen
Executive Director of Investment
|
|||
Iain Bruce
Non-Executive Member of the Board of Directors
|
|||
James Mitchell
Chief Strategy Officer and Senior Executive Vice President
|
|||
Jonathan Mailoa
Principal Researcher
|
|||
Levin Yao
Managing Director, Tencent Investment
|
Access 48,091 investors
822 industries, 177 countries. Updated daily. Emails and phones included.
Browse database — It's Free!
Find investors for your startup
Search 48,091 investors by industry and country. Emails and phones included.
Similar Investors
Similar industry
Similar stage
Featured in Investor Lists
Recommended lists
FAQ
What does David Wallerstein invest in?
David Wallerstein invests primarily in Mobile, Health Care and Artificial Intelligence startups, most often at Seed and Series B stage. Most of the 13 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.
What round sizes does David Wallerstein invest in?
David Wallerstein typically joins rounds of $1.6M–$4.6M at Seed and $11M–$90M at Series B. These are whole funding-round sizes, not David Wallerstein's own check, which is rarely disclosed: the 10th–90th percentile of the confirmed public funding rounds David Wallerstein took part in.
How do I contact David Wallerstein?
Public channels for David Wallerstein include LinkedIn and X (Twitter). 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 David Wallerstein last invest?
The most recent investment recorded for David Wallerstein closed in Jun 2023. Shizune tracks 13 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 Nov 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
Contact your first 100 investors today
Find who invests in your industry, stage, and country. Download investor list with emails in 5 minutes.
Find investors — It's Free!
Continue with Google
Continue with LinkedIn
