Data knows
the answer.

With 350 billion data points and AI, we help home buyers, real-estate developers, advertisers and local businesses make better decisions.

QWhat will this apartment be worth in two years?
For home buyersAI price forecast

Two-year forecasts built on transaction, listing and supply data.

More about Richgo
350Bdata points collected
1MRichgo monthly users (2024)
90.7%AI MAS enterprise renewal (2024)
KRW 12.5Braised to date
Products

Four products built on data.

For home buyers, real-estate developers, advertisers and local businesses. Each product is built around the data its users need to decide.

Richgo

For home buyers · Korea · Web, iOS, Android

Everything to check before you buy a home.

Prices, reported transactions and AI forecasts two years out for every apartment complex in Korea, built on government filings and years of market data.

  • Prices and transactions by complex, unit type and floor, plus AI forecasts two years out
  • AI analysis of regions and complexes trained on 10+ data sources, with an investment checklist
  • School districts, local development news, new-build subscriptions, land, buildings and court auctions on one map
Open Richgom.richgo.ai
9:41
Richgo apartment map screen
9:41
Richgo · Complex analysisRichgo · Regional prices

AI MAS

For developers and builders · B2B SaaS

Site feasibility in minutes, not weeks.

AI MAS estimates a fair sale price, forecasts subscription demand and tracks a site against 70+ market indicators. Builders, developers and public agencies use it to review projects.

  • AI-estimated sale prices and expected subscription competition
  • Site monitoring across 70+ supply, demand, price and purchasing-power indicators, updated weekly
  • A data room and custom reports built around your review process
Visit AI MASmas.richgo.ai
AI MAS · AI fair sale priceAI MAS · Data roomAI MAS · Custom reportsAI MAS · NICE finance data

GrowthMate

For advertisers · Naver, Google, Meta, Kakao

Find where ad spend leaks before you spend more.

GrowthMate brings four ad platforms into one view. Every day, AI flags wasted spend and repetitive work and drafts fixes. Only what you approve goes live.

  • Naver, Google, Meta and Kakao performance in one dashboard
  • Leak detection on the last 90 days of data
  • Approval-based optimization and automated reports
Visit GrowthMategrowthmate.kr
GrowthMate · Naver KPIsGrowthMate · Sales & weatherGrowthMate · Click-fraud check

AEO Pro

For local and specialist businesses · US & Korea

Get named when customers ask AI.

AEO Pro checks every week whether ChatGPT, Gemini, Perplexity and Claude recommend your business, and fixes what keeps them from reading your site.

  • Weekly measurement on the questions your customers actually ask
  • Connect without sharing passwords; an agent makes fixes and checks the live page
  • Automatic rollback if a change fails, with a weekly report
AEO Pro · Mention rateAEO Pro · Connections
AEO Pro · AI-readiness score

Product screens are real screens as of October 2026. Some figures are masked or shown as examples.

Technology

Models that keep learning.

We keep training machine-learning and deep-learning models on data collected every day since 2019.When the engine improves, every product improves with it.

01 · Collect

350B data points

Government transaction filings, building and land registers, court auctions, listings, school and commercial-district data, collected daily since 2019.

02 · Model

Forecasts and agents

Models that forecast prices and supply-demand two years out, and LLM agents that read websites and AI answers the way a customer would.

03 · Decide

Answers you can act on

A fair price for a home, a go or no-go on a site, where ad spend leaks, and the fixes that get a business named by AI. Every number traces back to its source.

Partners

Investors and customers

Institutional investors and leading Korean builders, public agencies and financial institutions work with DataKnows.

Investors

SJ Investment Partners
Kolon Investment
Woori Bank
KEB Hana Bank
Woomi Construction
Korea Venture Investment Corp.
D.CAMP
K2 Investment Partners

CustomersAI MAS enterprise and public-sector clients

Hyundai Engineering
Hyundai E&C
Lotte E&C
GS E&C
DL E&C
DL Construction
SK ecoplant
Hanwha E&C
BS Hanyang
KT Estate
Korea Real Estate Investment & Trust
NNC
Gukjin Housing
Shinhan Investment
Korea Land & Housing Corp.
Seoul Housing & Communities Corp.
Korea Housing Finance Corp.
Korea Real Estate Board
Korea Research Institute for Human Settlements
Korea Ratings

Partners and memberships

NICE Information Service
Oasis Business
loplat
Korea Asset Purchase
Korea PropTech Forum
KREPA
History

Always building.

Named a global innovator by KPMG (2021) · Top award, Maekyung Fintech Awards (2021)

2026

  • 10

    Launched AEO Pro for AI search visibility (Korea, US)

  • 10

    Began operating GrowthMate, an ad performance service

2025

  • 02

    Launched AI forecasting of real-estate supply and demand

2024

  • 06

    Richgo app passed 1 million monthly users

  • 06

    AI MAS passed 25 enterprise customers · 90.7% renewal rate

  • 01

    Raised a KRW 1.5B bridge round · KRW 12.5B in total

2023

  • 06

    MAS contract with Korea Land & Housing Corp. (LH)

  • Launched Richgo app 2.0 · Raised a KRW 3B bridge round

2022

  • 10

    Launched MAS, real-estate big-data analytics for enterprises

  • 04

    Selected for Hyundai Motor ZER01NE accelerator · KRW 5B Series A

2021

  • 09

    Top award, Maekyung Fintech Awards · Named a global innovator by KPMG

  • 07

    Richgo app passed 200,000 monthly users

2020

  • 11

    Richgo AI integrated into KB Real Estate · Launched the Richgo app

  • 08

    Selected for KB Kookmin Card Future Nine · Pre-Series A

  • 03

    Selected for KB Financial Group Starters

2019

  • 05

    DataKnows Inc. founded

Team

Engineers and real-estate researchers.

Kiwon Kim

Kiwon Kim

CEO
  • B.S. Mathematics, Hanyang University · B.S. Computer Science, Utah State University
  • Real-estate advisory committee, Seoul Metropolitan Government (2018)
  • Author of Big Data Real Estate Investing (2018, 2021)
Soohwan Park

Soohwan Park

CPO
  • B.S. Computer Science, KAIST · M.S. Computer Engineering, Seoul National University
  • Software engineer, Hyundai Mobis (Hyundai Motor Group)
  • Founded and sold a natural-language-processing company

Work with us.

Partnerships, advertising and enterprise inquiries.

support@dataknows.ai
Legal name
DataKnows Inc. (주식회사 데이터노우즈)
Founded
May 24, 2019 · Seoul
Representative
Kiwon Kim
Business reg. no.
219-81-31561
Address
2F, Cheonwoo Building, 9-22 Sinbanpo-ro 45-gil, Seocho-gu, Seoul, Republic of Korea