# Datumo

Startup profile on Capital Atlas: https://capitalatlas.ai/startups/datumo

- Industry: Information Services
- Headquarters: Seoul, South Korea
- Website: https://open.datumo.com/
- Total disclosed funding: $25M
- Latest round: Series B (Dec 1, 2025)
- Investors on record: 18

## About

Founded in 2018 and based in Seoul, South Korea, Datumo, formerly known as SelectStar Inc., operates and manages web and mobile applications for crowdsourcing platform in which users can participate in various AI training data projects in exchange for cashable reward points. In December 2025, Datumo raised KRW 5.5 billion in series B funding from new investors Samsung Venture Investment, Mirae Asset Venture Investment, and Plux Ventures. The round is part of a larger KRW 26 billion series B funding. Datumo earns revenue through enterprise contracts with major Korean firms like Samsung, LG, Hyundai, and SK Telecom. It generated approximately $6 million in 2024, with income derived from data annotation services, AI model evaluation tools, and licensed datasets sourced from structured content such as published books. The company will use the December 2025 funding to improve its platform and reliability evaluation, and to expand into the global market.

## Funding rounds

- Series B, Dec 1, 2025, $3.8M — Samsung Venture Investment, Mirae Asset Venture Investment, Plux Ventures
- Series B, Aug 11, 2025, $15M — SBI Investment Korea, Shinhan Venture Investment, KB Investment, Moorim Capital, Salesforce Ventures, Kiwoom Investment, Samsung Securities, KB Securities, Infobank, ACVC Partners
- Series A, Jun 1, 2023, $3.1M — Korea Development Bank
- Series A, Aug 1, 2020, $3.4M — Kakao Ventures, Kolon Investment, Company K Partners
- Seed, Sep 1, 2019 — Kakao Ventures, Korea Tech Incubator for Startup
- Seed, Jul 16, 2019, $0.3M — Kakao Ventures

## Investors

- Kakao Ventures (https://capitalatlas.ai/funds/kakao-ventures) — Seed, Series A
- Korea Tech Incubator for Startup — Seed
- Kolon Investment (https://capitalatlas.ai/funds/kolon-investment) — Series A
- Company K Partners (https://capitalatlas.ai/funds/company-k-partners) — Series A
- Korea Development Bank (https://capitalatlas.ai/funds/korea-development-bank) — Series A
- SBI Investment Korea (https://capitalatlas.ai/funds/sbi-investment-korea) — Series B
- Shinhan Venture Investment (https://capitalatlas.ai/funds/shinhan-venture-investment) — Series B
- KB Investment (https://capitalatlas.ai/funds/kb-investment) — Series B
- Moorim Capital — Series B
- Salesforce Ventures (https://capitalatlas.ai/funds/salesforce-ventures) — Series B
- Kiwoom Investment (https://capitalatlas.ai/funds/kiwoom-investment) — Series B
- Samsung Securities — Series B
- KB Securities (https://capitalatlas.ai/funds/kb-securities) — Series B
- Infobank (https://capitalatlas.ai/funds/infobank) — Series B
- ACVC Partners (https://capitalatlas.ai/funds/acvc-partners) — Series B
- Samsung Venture Investment (https://capitalatlas.ai/funds/samsung-venture-investment) — Series B
- Mirae Asset Venture Investment (https://capitalatlas.ai/funds/mirae-asset-venture-investment) — Series B
- Plux Ventures (https://capitalatlas.ai/funds/plux-ventures) — Series B