# Siu Quek

> Siu Quek is a seed investor at Carousell (Singapore) backing Health Care and Education. See 14 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [Carousell](https://shizune.co/investors/profile/carousell)
- Location: Singapore, Singapore
- Total investments: 14
- Last investment: Feb 2024
- Lead investor: 0%
- Last updated: Aug 2026
- LinkedIn: https://sg.linkedin.com/in/siurui
- X (Twitter): https://twitter.com/siurui
- Website: https://x.com/siurui
- Facebook: https://www.facebook.com/siurui

Siu Quek is a seed investor at Carousell in Singapore focused on Health Care and Education. Siu Rui Quek is the Co-founder and CEO of Carousell. Siu Rui previously worked at VSee as a Collaboration Evangelist. Siu Rui Quek attended the National University of Singapore. Siu Rui Quek has received the Asia's Most Influential Award, Outstanding Young Alumni Award, and Eminent Business Alumni Award.

## Round sizes

| Stage | Round size |
| --- | --- |
| Seed | $743k–$7.6M |
| Pre-Seed | $260k–$1.3M |

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Health Care | 4 | 29% |
| Education | 3 | 21% |
| Information Technology | 3 | 21% |
| Artificial Intelligence | 3 | 21% |
| SaaS | 2 | 14% |

32 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 8 | 57% |
| Pre-Seed | 4 | 29% |
| Series A | 1 | 7% |
| Private Equity | 1 | 7% |

### Country

| Country | Investments | Share |
| --- | --- | --- |
| Singapore | 11 | 79% |
| Indonesia | 1 | 7% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Yolk.fm | Yolk.fm is a social platform that allows users to chat rather than send text messages. | $1.3M | Pre-Seed | Feb 29, 2024 |  |
| Circular | Circular is delightful subscription e-commerce, with sustainability at its heart. By focusing on customer experience while reducing waste and underutilization, we provide subscriptions to premium devices at affordable prices and with unmatched flexibility. Our mission is simple: to make subscribing to devices superior to owning them in every way,and thereby to accelerate the transition to a waste-free circular economy.At Circular, being a great place to work is anything but an afterthought. We are serious about crafting a place where adults work and learn together and every day is filled with meaning, collaboration, joy, and (most of all) impact. | $7.6M | Seed | Oct 08, 2023 |  |
| NodeFlair | Career Transparency for the Tech Community (think Glassdoor for Tech Talents)NodeFlair's vision is to be a career recommendation engine for the 25M tech talents globally. We aim to help companies hire the best tech talents with our recruitment products and services.Today, >20% of Tech talents in Singapore make better career decisionsusing our verified career data. We are best known for our payslip-verified salary data. | $2M | Series A | Jul 06, 2023 |  |
| Mito Health | Mito Health is an AI-powered medical healthtech that provides technological advances to revolutionize the future of personalized preventative care. | $1.3M | Pre-Seed | Apr 18, 2023 |  |
| Jackett | Jackett is a SaaS to help K-12 schools automate school test creation and grading through artificial intelligence. This is done through leveraging machine learning models to transform existing educational content into automatically generated tests. Jackett's automation helps teachers work 18 times faster compared to the manual process. | $1M | Seed | Aug 25, 2022 |  |
| Jackett | Jackett is a SaaS to help K-12 schools automate school test creation and grading through artificial intelligence. This is done through leveraging machine learning models to transform existing educational content into automatically generated tests. Jackett's automation helps teachers work 18 times faster compared to the manual process. | $1M | Pre-Seed | Aug 25, 2022 |  |
| Aigis | Aigis provide full stack comprehensive employee health benefits in one easy-to-manage platform. | $1M | Seed | May 12, 2022 |  |
| Doyobi | Doyobi enables educators to teach science and coding in a fun and interactive way. Its guided courses integrate videos, quizzes, and projects to make teaching easy. Doyobi’s courses are used in programs supported by Google and the Singapore government, as well as by educators from different parts of the world.Doyobi aims to help kids grow intooriginal thinkers and develop a sense of purpose. Its programs are designed to nurture curiosity, creativity, and a growth mindset. Doyobi’s pedagogy is built on helping learners develop attitudes and mindsets they would need to thrive beyond 2030, build coding and science fundamentals aligned to K12 standards, learn to use planning and design thinking to create prototype solutions to the UN Sustainable Development Goals (UN SDGs). | $2.8M | Seed | Oct 20, 2021 |  |
| uWave | uWave's mission is to reinvent students' life by providing a platform for students to find and stay connected with friends, know what's going on in their community, and share what matters to them. Students can now meet new friends and discuss a wide range of topics, including relationships, careers, and news, in a secure closedcommunity (with anonymity). uWave users can access exclusive perks and convenient services (i.e., travel, discounts, jobs, etc.). | $260K | Pre-Seed | Oct 04, 2021 |  |
| StratifiCare | StratifiCare is a medical company that focuses on the development and manufacturing of in vitro diagnostic medical devices it provides solutions for personalized medicine. StratifiCare features a panel of biomarkers which are able to determine the progress of dengue fever. The company was founded on July 13, 2015, and headquartered in Singapore. | $742.9K | Seed | Sep 07, 2021 |  |

10 of 14 investments shown.

## Co-investors
- [Forge Ventures](https://shizune.co/investors/profile/forge-ventures) — VC Fund, 4 deals together
- [500 Global](https://shizune.co/investors/profile/500-startups) — VC Fund, 2 deals together
- [Epic Angels](https://shizune.co/investors/profile/epic-angels) — VC Fund, 2 deals together
- [Goodwater Capital](https://shizune.co/investors/profile/goodwater-capital) — VC Fund, 2 deals together
- [Y Combinator](https://shizune.co/investors/profile/y-combinator) — VC Fund, 2 deals together
- [ADB Ventures](https://shizune.co/investors/profile/adb-ventures) — VC Fund, 1 deal together

## About Carousell

VC Fund · Singapore, Singapore

Carousell is a classifieds marketplace that allows people to buy and sell preloved items. It is a Singapore-based consumer-to-consumer marketplace app for iOS and Android.The Carousell marketplace has a diverse range of products across a variety of categories, including cars, lifestyle, gadgets, and fashion accessories. It has been ranked as thetop Shopping app in Singapore, Taiwan, Hong Kong, and Australia, and is backed by leading international Venture Capitalists Sequoia Capital, Rakuten Ventures, 500 Startups, Golden Gate Ventures, and QuestVC.Launched in Aug 2012, Carousell began in Singapore and has expanded to 19 cities around the world, spanning 7 countries.

5 contacts available at Carousell.

| Name | Title | Profile |
| --- | --- | --- |
| Marcus Wei | Co-founder | https://shizune.co/investors/profile/marcus-tan-yi-wei |
| Siu Quek | Co-founder, CEO | https://shizune.co/investors/profile/quek-siu-rui |
| Andrius Baranauskas | VP, Product | https://shizune.co/investors/profile/andrius-baranauskas |
| Brian Sze | General Manager | https://shizune.co/investors/profile/brian-sze-2 |
| Lucas Ngoo | Co-founder | https://shizune.co/investors/profile/lucas-ngoo |

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## FAQ

### What does Siu Quek invest in?

Siu Quek invests primarily in Health Care, Education and Information Technology startups, most often at Seed and Pre-Seed stage. Most of the 14 investments tracked by Shizune back companies in Singapore. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### What is Siu Quek's check size?

Siu Quek typically joins rounds of $743k–$7.6M at Seed and $260k–$1.3M at Pre-Seed. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Siu Quek participates in.

### When did Siu Quek last invest?

The most recent investment recorded for Siu Quek closed in Feb 2024. Shizune tracks 14 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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