Many Forms. One Purpose.

15+ Years Building Bridges Between Japan and Korea.

Protean builds and operates trusted platforms that help Japanese people study, move, live and connect in Korea — a living infrastructure spanning both markets.

15+Years Operating
16,000+LINE Subscribers
2,000+Contracts / Year
JP ⇄ KRTwo Markets
Built. Scaled. Exited. Protean JPY was acquired by a NASDAQ-listed fintech company.
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Gateway
Traffic
Customers
Brand
Network
01
Seoul Living Platform

One platform for life in Korea.

A platform supporting Japanese people who study, move, live and connect in Korea.
StudyK-Academy
MoveSeoul Ryugaku Navi
LiveSeoul Heya Navi
ConnectSeoul Mobile Navi
02
Key Assets

Fifteen years, compounded.

15+
Years Operating History
2,000+
Contracts Per Year
16,000+
LINE Subscribers
9,200+
Monthly Organic Clicks
30+
Korean Real Estate Partners
20+
Sublease Units
6
Team Members
03
What You Gain

Not a website. An entry into a market.

For Korean Companies Entering Japan

A Gateway to the Japanese Market

A ready-made, trusted channel to reach Japanese customers moving to and living in Korea — and a foothold for Korean companies looking toward the Japanese market.

Discoverability

SEO & Organic Traffic

9,200+ monthly organic clicks, built over years of content and search ranking that are difficult and slow to replicate.

Demand

Engaged Customer Base

16,000+ LINE subscribers and 2,000+ contracts a year — a warm, returning audience, not cold traffic.

Recognition

Brand & Trust

A recognized, trusted name among Japanese people studying and living in Korea, across housing, study and telecom.

Relationships

Partner Network

30+ Korean real estate partners and on-the-ground relationships built and maintained over fifteen years.

04
Built Over Time

Trust is the asset.

05
Track Record

Built, grown and handed off.

Protean creates businesses, grows them, and hands them to the right successors. Many continue to operate and generate revenue long after the transition.

Protean JPY
Fintech · Cross-border Remittance
Founded 2017  ⟶  Sold to a NASDAQ-listed fintech company 2022
A fintech built as the culmination of years in HR, education and housing — now part of a NASDAQ-listed group.
Seoul Heya Navi
Real Estate · Living
Acquired 2015  ⟶  Operating (flagship)
Acquired and operated for 15+ years as Protean's flagship platform.
K-Academy
Education · Korean Language
Operated 2012 · MBO 2013 ⟶ Sold 2014
Protean's origin — the management buyout that started the company.
ABC Academy
Education · English
Operated & sold as business lead 2011–2012
Led growth and transition as the operating executive.
Nasten
HR · Nurse Recruiting
Built ⟶ Sold 2011
An early business in the HR domain.
06
How We Work

How we work.

Who We Build With

Partners we grow with

We value long-term trust over short-term transactions.

i.
Operating Companies

Creating new value together through partnership and collaboration.

ii.
Investors

Capital for the growth and succession of businesses.

iii.
Owners Considering Succession

A trusted next steward for what you have built.

iv.
Entrepreneurs

Backing builders with capital and experience.

What We Believe

What matters to us
i.
Start from real needs.

We build from people's fundamental problems, not from passing trends.

ii.
Stand on our own.

Businesses that earn their own revenue, not ones dependent on subsidies.

iii.
Never just flip.

We grow businesses to hand them on, not to sell them quickly.

iv.
Long-term trust.

We choose lasting relationships over one-time transactions.

07
2025 — Present

Building the Next Chapter.

08
Contact

Let's build the bridge together.

Many Forms.
One Purpose.

Protean is open to strategic partnerships, investments and business successions in Japan and Korea. From collaboration and capital to succession, we welcome a conversation — from any starting point.

Strategic PartnersInvestorsSuccessorsOperators
09
Company

Company.

NameProtean Inc. (株式会社プロテアン)
FoundedSeptember 2013
FounderNorio Akiyama
LocationSaitama, Japan
Business AreasEducation · Living · Human Resources · Financial Services