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Onuii

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A mathematical problem solving application for middle and high school students

Seoul, South KoreaFounded 2016Edtech
Valuation $50–100M Last recorded · 2021
Headcount <100 Current team size
Total funding $10–50M Disclosed equity funding
Unlock exact values This page shows ranges. Dealroom has the exact numbers for Onuii and the history behind them.

About Onuii

Onuii Inc., a South Korean educational technology firm established in 2016, is making significant strides in the private education market by targeting the digital-native Gen Z. The company's journey began when its CEO, nicknamed Jess, and CTO, Ira, met at a startup academy and conceived an on-demand academic support service. This initial concept evolved into their first product, the `` app, a real-time Q&A platform where students studying independently can receive immediate help from tutors.

The company's flagship service, ``, launched in June 2019, has been a primary driver of its rapid expansion. Seoltab is a one-on-one, non-face-to-face smart tutoring service conducted via tablet, connecting students with tutors from top-tier universities, often referred to as 'SKY' (Seoul National, Korea, and Yonsei Universities). The business model is centered on subscriptions for this personalized tutoring, which includes customized curricula, AI-powered learning management, and access to a vast library of digital textbooks and past exam questions. This approach has proven highly successful, with the company reporting a cumulative 530,000 paying subscribers and an average annual revenue growth of 230% over three years. By 2023, the service had surpassed 120 billion KRW in cumulative revenue.

Onuii's growth trajectory attracted significant investor confidence, culminating in a Series A funding round of approximately 14 billion KRW in November 2021, with participation from KB Investment, Strong Ventures, and others. Operating on a B2C model, the firm generates revenue from tutoring fees, which are comparable to traditional academy costs but bundle live tutoring, on-demand lectures, and digital materials. By focusing on creating an engaging and effective remote learning environment, Onuii aims to alleviate educational disparities, making elite tutoring accessible to students anywhere in Korea.

Source: Dealroom company data

At a glance

Status
Operational
Founded
2016
Headquarters
Seoul, South Korea
Employees
68
Open positions
None listed
Dealroom signal
35.6/100
Industry
Education
Sector
Edtech, Tutoring and Homework
Client focus
b2c
Investment activity
1 company, latest Jul 2024
Capital deployed
—
Preferred round
ACQUISITION

Funding history

4 recorded events

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
SERIES A✓Equity / VC Nov 2021 $12M $47M Strong Ventures · Aju IB Investment · Hana Ventures · Stick Ventures ↗
SEEDEquity / VC Aug 2020 $1.5M $6M Hana Ventures —
Showing the latest 2 of 4 recorded eventsBook a demo for the full funding history →

Growth signals

Onuii website traffic

Latest recorded traffic for Onuii is 2.7K monthly website visits, down 34.1% over the last three months. Onuii's team declined 2.9% over the past year.

Latest monthly visits2.7K 3-month web change-34.1% 1-year team growth-2.9%
Summary metrics are public; monthly history is available with a demoCompare with peers →

Similar companies

Closest operating peers by Dealroom taxonomy

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Investments and acquisitions

Capital deployed

Recent portfolio relationships for companies that also act as investors or acquirers.

Investors

7 investors on the cap table

From Dealroom's funding and investor records, grouped by the round each investor first entered.

Seed3 investors entered at this stage

  • Strong Ventures
  • D.CAMP
  • Hana Ventures

Series A3 investors entered at this stage

  • Aju IB Investment
  • Stick Ventures
  • KB Investment

Other known investors1 additional known investor

  • Primer
Team profiled 2 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 2 quality Hidden — book a demo/100
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Global footprint

Workforce and web traffic by country
Workforce by country
4 countries with
team presence
🇰🇷 South Korea90.3%
🇦🇺 Australia3.2%
🇺🇸 United States3.2%
🇬🇧 United Kingdom3.2%
4 countries shown

Market sentiment

Posts on X, past 7 days

An AI-synthesised read of the highest-engagement posts about Onuii on X, ranked by likes and reposts, corporate channels excluded.

Reading the room on X — pulling top posts and synthesizing themes…

Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour

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