Office profile

MIXI Headquarters & offices · Tokyo, Japan

Low-angle view of a tall glass tower against a blue sky — Shibuya Scramble Square, home of MIXI's head office · © MIXI

Glass skyscraper rising above low-rise Shibuya under a cloudy sky — Shibuya Scramble Square above the city · Syced / CC0 · Wikimedia Commons

Wood-floored reception hall with pebble-shaped seats and a glass stair enclosure — The reception “museum”, framed in wood · © MIXI

Steel staircase beside a planted café seating area with city views — Stairs and greenery in the “bazaar” · © Nikken Sekkei / photos: Ken Nagare, Masunaga Kenji Photo Office

Café counter with patterned tiles, coffee machines and a menu board — In-house café · © MIXI

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MIXI · Tokyo, Japan

MIXI's head office fills nine floors of Shibuya Scramble Square, above Shibuya Station, laid out by Nikken Sekkei like a town — desks as homes, a “shopping street” of meeting spots and a green “bazaar” with a café and a convenience store.

The office, a ¥240,000-a-year benefits budget and five Shibuya-area headquarters since mixi was born in 2004 — then the business behind Monster Strike. Every number from MIXI's own site, its careers site and the architect's project page.

28F–36FMIXI's floors in Shibuya Scramble Square
24,613 m²office floor area (≈ 264,934 sq ft)
2,116employees, March 2026
¥240,000benefit points per employee each year

See inside the office Benefits

Sources: Nikken Sekkei project page “MIXI Head Office” · MIXI GROUP Recruit (Office, Benefits) · mixi.co.jp company profile (March 2026)

Companies / Japan / Games, sports & social apps / MIXI

THE HEAD OFFICE · SHIBUYA SCRAMBLE SQUARE · 2020

An office planned like Shibuya itself, nine floors above the station

Nikken Sekkei brought MIXI's scattered Shibuya offices together in Shibuya Scramble Square and turned the parts of the city where the company was born into office functions. The typical floor is a “town”: fixed desks are the homes, and around the edge runs an “activity area”, a shopping street for quick meetings. The reception is a “museum” framed in wood, with changing exhibits about MIXI. The green “bazaar” mixes a café, a convenience store, studios and lounges. MIXI's own concept is “For Communication”, built on three ideas: Meet Up, Switch Up and Dream Up.

Floors 28–36
24,613 m² (≈ 264,934 sq ft)
Interior design: Nikken Sekkei
Nikkei New Office Award 2020
In-house café, cafeteria and LAWSON store

The building above Shibuya Station

MIXI's head office fills floors 28 to 36 of Shibuya Scramble Square, 2-24-12 Shibuya.

Glass façade of a tower seen across station roofs — Seen from Shibuya Hikarie · Syced / CC0 · Wikimedia Commons

Glass tower at dusk with a pink sky over the city — Shibuya Scramble Square at dusk · Syced / CC0 · Wikimedia Commons

Street-level entrance with angled canopies and pedestrians walking past — From the street · Edomura no Tokuzo / CC BY-SA 4.0 · Wikimedia Commons

Town, homes and shopping street

Nikken Sekkei laid out the typical floor as a town: fixed desks are the homes and an activity area runs round the edge like a shopping street.

Long white corridor with frosted glass walls — Corridor · © MIXI

Rows of wooden desks with task chairs under bright ceiling lights — Work area · © MIXI

Long open office with rows of desks and windows on both sides — Office floor · © MIXI

Open area with a planted tree, high tables and exposed ceiling ducts — Activity area · © Nikken Sekkei / photos: Ken Nagare, Masunaga Kenji Photo Office

Long wooden meeting table under a large pendant lamp beside glass rooms — Meeting space · © MIXI

Meeting room with white table, grey chairs and floor-to-ceiling windows over the city — Meeting room · © MIXI

Corner meeting room with glass walls and a wide city view — Meeting room with a view · © MIXI

Large seminar room with rows of tables and two projection screens — Seminar room · © MIXI

The green bazaar

The green “bazaar” mixes a café, a convenience store, studios and lounges.

Mesh-sided steel stair passing over a planted seating area — Stairs through the garden · © MIXI

Lounge with sofas, small tables and many plants under an exposed ceiling — Lounge · © MIXI

Cafeteria serving counter with an open kitchen and wooden floor — Cafeteria · © MIXI

Cafeteria counter with a chalkboard menu and dishes on display — Cafeteria counter · © MIXI

Convenience-store shelves stocked with drinks and snacks — LAWSON store in the office · © MIXI

Row of coffee machines on a white counter against a black wall — Drink bar · © MIXI

Studios and quiet rooms

Alongside the café and store, the bazaar holds studios and lounges.

Empty white photo studio with lighting rigs on the ceiling — Studio · © MIXI

Audio room with mixing desk, monitors and speakers — Sound studio · © MIXI

Rounded white booths with colourful graphics on a wooden floor — Booths · © MIXI

Small white room with a massage bed and a mirror — Massage room · © MIXI

Facts: Nikken Sekkei project page “MIXI Head Office” · MIXI GROUP Recruit, “Office” and “Benefits”

Where MIXI works in Shibuya

Building	Address
Shibuya Scramble Square, floors 28–36 (head office, registered on 36F)	2-24-12 Shibuya, Shibuya-ku, Tokyo 150-6136

Source: mixi.co.jp company profile and access · MIXI GROUP Recruit, “Office” · See them on the map ↓

Interior designNikken Sekkei

Office floor area24,613 m² ≈ 264,934 sq ft

Floors28th to 36th

Completed2019 (head office moved March 2020)

Concept“For Communication”: Meet Up, Switch Up, Dream Up

AwardsNikkei New Office Award 2020 (Creative Office); IDA Awards 2021 Honorable Mention; The Plan Award 2021 finalist; CREDAWARD 2022 Gold

Source: Nikken Sekkei project page “MIXI Head Office” · MIXI GROUP Recruit, “Office” · mixi.co.jp history. sq ft converted by eciffo.

Office tour videos

MIXI head office tour, Shibuya Scramble SquareMIXI_RECRUIT (official) · 2025 · YouTube ↗

Benefits (Japan)

MIXI Cafeteria Plan¥240,000/yr

Points to spend on benefits in five categories: inspiration, skills, health, work–family balance and home-office setup.

“Invention support”¥50,000/yr

Part of the plan: theatre, musicals, concerts and festivals, museums, films and theme parks, to feed creativity.

Long-distance commuting¥150,000/mo

Live anywhere in Japan; actual travel costs, including flights and bullet trains, are paid up to this cap.

Housing allowance (new graduates)¥30,000/mo

For the first three years, for new graduates who live within 5 km of the Shibuya office.

MIXI BREAK5 days

Refresh leave plus an incentive, every five years of service.

Reserve leaveUp to 40 days

Annual leave that would expire is banked for set uses such as illness or family care.

Food and drinkHalf price

Half-price lunches in the staff cafeteria and at the in-house BYRON BAY COFFEE café; the drink bar is free.

Massage room30 min

Sessions with a licensed massage therapist, booked in advance, up to 30 minutes each.

Source: MIXI GROUP Recruit, “Benefits & Programs” and “Workstyle & Communication”. A defined-contribution pension and an employee shareholding association are also offered.

Why people stay: what MIXI itself says

Anywhere“Marble Work Style”

Each team picks full remote or the right number of office days, and employees may live anywhere in Japan; commuting by plane or bullet train is paid up to ¥150,000 a month.

No core timeFlextime 5:00–22:00

Employees set their own start and finish within a 5 am – 10 pm window.

MCCInternal job postings

MIXI CAREER CHALLENGE posts priority and short-staffed roles inside the company so anyone, of any age or job type, can apply.

7.5%Turnover, FY2026

Group-wide turnover in the year to March 2026, down from 9.5% the year before.

74%Engagement score, FY2026

Positive answers on willingness to contribute, pride in the company and sense of achievement; the mid-term target is 75%.

MIXI AWARDCompany-wide gatherings

All-hands events several times a year with awards and a Year End Party, rice-cake pounding on the first workday of the year, clubs, and get-togethers subsidised up to four times a year per person.

Source: MIXI GROUP Recruit, “Workstyle & Communication” · mixi.co.jp ESG data (FY2026 = year ended March 31, 2026)

Who works here

Gender · March 2026 (consolidated, 2,116 people)

Men 69.2%Women 30.8%

38.1

average age (MIXI, Inc.)

6.2 yrs

average tenure (MIXI, Inc.)

86.6%

joined mid-career (MIXI, Inc.)

52.9%

of fathers take childcare leave (FY2026)

Source: mixi.co.jp ESG data, March 2026 / FY2026. Consolidated unless noted.

Office history: five Shibuya-area headquarters in sixteen years

1997
A job site, before there was a company
Inspired by IT case studies in a university seminar and by the internet boom in Silicon Valley, Kenji Kasahara started the job site “Find Job!” in November 1997.
Source: mixi.co.jp officers page (Kenji Kasahara) and history

No free-to-use photo found yet.Have one? We’d love to add it.
1999
Incorporated as E-Mercury
Kasahara incorporated the business as E-Mercury on June 3, 1999, with himself as representative director; it became a joint-stock company in October 2000.
Source: mixi.co.jp company profile and history

No free-to-use photo found yet.Have one? We’d love to add it.
2004
Dogenzaka Sepia Building — where mixi was born
The social network mixi opened on February 22, 2004 from E-Mercury's office in the Dogenzaka Sepia Building, known for its semicircular balconies, about six minutes' walk up Dogenzaka from SHIBUYA109.
Source: mixi operator blog, “Thank you, mixi 16th anniversary” (Mar 3, 2020)

Dogenzaka Sepia Building, 2004 · © MIXI (mixi operator blog, 2020)
2004
Shibuya Mark City
A few months after launch, in July 2004, the growing team moved to Shibuya Mark City nearby. mixi passed 50,000 users that month; the company was renamed mixi, Inc. there in February 2006 and listed on TSE Mothers in September 2006.
Source: mixi operator blog (Mar 3, 2020) · mixi.co.jp history

Shibuya Mark City, 2004–2007 · © MIXI (mixi operator blog, 2020)
2007
Sumitomo Fudosan Harajuku Building
After about three years at Mark City, mixi moved in August 2007 to the Sumitomo Fudosan Harajuku Building, 2-34-17 Jingumae. The iPhone app, mixi Touch and the Android app were all made here.
Source: mixi operator blog (Mar 3, 2020) · Sumitomo Realty building page (address)

Sumitomo Fudosan Harajuku Building, 2007–2011 · © MIXI (mixi operator blog, 2020)
2011
Sumitomo Fudosan Shibuya First Tower, 1-2-20 Higashi
The month after the Great East Japan Earthquake, in April 2011, the head office moved back to Shibuya, to the 7th floor of Shibuya First Tower — its longest home, for almost nine years. Monster Strike launched in 2013; by 2017 the company was spread over three sites, including NBF Shibuya East and Next Site Shibuya.
Source: mixi operator blog (Mar 3, 2020) · MIXI relocation notice (Nov 8, 2017)

Sumitomo Fudosan Shibuya First Tower, 2011–2020 · © MIXI (mixi operator blog, 2020)
2020
Shibuya Scramble Square, 2-24-12 Shibuya
Announced in November 2017 to bring three sites into one, the move began with the mixi team in December 2019; the head office officially moved in March 2020. The company was renamed MIXI, Inc. in October 2022.
Source: MIXI relocation notice (Nov 8, 2017) · mixi operator blog (Mar 3, 2020) · mixi.co.jp history

No free-to-use photo found yet.Have one? We’d love to add it.

Map: how the headquarters moved

MIXI has never left the Shibuya area: from a building halfway up Dogenzaka to the tower directly above Shibuya Station, with one stop in Harajuku — all within about 2 km.

Loading map…

1 · 2004Dogenzaka Sepia Building — Dogenzaka, Shibuya — where mixi opened in February 2004
2 · 2004Shibuya Mark City — Next to Shibuya Station — July 2004 to 2007
3 · 2007Sumitomo Fudosan Harajuku Building — 2-34-17 Jingumae — August 2007 to 2011
4 · 2011Sumitomo Fudosan Shibuya First Tower — 1-2-20 Higashi, Shibuya — April 2011 to 2020
5 · 2020Shibuya Scramble Square — 2-24-12 Shibuya, floors 28–36 — today's head office

Buildings and dates: mixi operator blog (Mar 3, 2020) · Addresses: MIXI relocation notice (2017), mixi.co.jp company profile, Sumitomo Realty building page. The street address of the Dogenzaka Sepia Building is not published by MIXI.

What MIXI does

MIXI started in 1997 as a job site, launched Japan's social network mixi in 2004 and the smartphone game Monster Strike in 2013. Today it calls its market the “We-Time economy”: games, sports and apps people enjoy with family and friends.

Four segments: Digital Entertainment (Monster Strike), Sports (Chiba Jets, FC Tokyo, TIPSTAR and, since 2025, PointsBet), Lifestyle (FamilyAlbum “Mitene”, mixi, mixi2) and Investment.

Where the money came from · Revenue by segment · FY2026 (year to March 2026)

Digital EntertainmentMonster Strike and other games

¥83.8B

SportsPro teams, arena and betting; up 63.8%

¥65.8B

LifestyleFamilyAlbum and other apps; up 16.0%

¥17.1B

Source: mixi.co.jp IR, Message from the President (FY2026 results)

Revenue, FY2026¥171.4Bup 10.7% in a year

Operating profit, FY2026¥22.3Bdown 16.3%

EBITDA, FY2026¥31.2Boperating profit before depreciation

Net profit, FY2026¥17.3Battributable to owners of parent

Source: mixi.co.jp IR Financial Highlights and Message from the President (Japanese GAAP, fiscal year ends March 31)

Growth: revenue vs. people

1.4×revenue, FY2022 → FY2026
¥122.0B → ¥171.4B

1.5×employees, same years
1,432 → 2,116

YearRevenueEmployees

FY2022

¥0.1T

1,432

FY2023

¥0.1T

1,527

FY2024

¥0.1T

1,645

FY2025

¥0.2T

1,717

FY2026

¥0.2T

2,116

Fiscal years end March 31 (FY2026 = year to March 2026). Revenue: mixi.co.jp IR Financial Highlights. Employees: mixi.co.jp ESG data (consolidated, at March 31). Earlier years are in PDF filings we could not check. Multiples calculated by eciffo.

Chief executives

No free-to-use photo.

2018 – today

Koki Kimura

Representative Director and President since June 2018; now President, Senior Executive Officer and CEO. Joined in 2008 and started the Monster Strike project.

No free-to-use photo.

until 2018

Hitoki Morita

Representative Director and President when the move to Shibuya Scramble Square was announced in 2017.

No free-to-use photo.

1999 – 2013

Kenji Kasahara

Founder. Representative director from incorporation; chairman from June 2013; today Director, Founder and Senior Executive Officer in charge of FamilyAlbum.

Founder: Kenji Kasahara.

Source: mixi.co.jp officers page · MIXI relocation notice (Nov 8, 2017)

MIXI: questions people ask

Where is MIXI's headquarters?

In Shibuya Scramble Square, 2-24-12 Shibuya, Shibuya-ku, Tokyo, the tower directly above Shibuya Station. MIXI's offices take floors 28 to 36; the registered address is on the 36th floor.

Source: mixi.co.jp company profile · MIXI GROUP Recruit, “Office”

Who designed MIXI's office?

Nikken Sekkei designed the interiors. It planned the typical floor as a “town” with desks as homes and a shopping street of meeting spots, a wood-framed “museum” reception, and a green “bazaar” with a café, convenience store, studios and lounges.

Source: Nikken Sekkei project page “MIXI Head Office”

How big is MIXI's office?

24,613 m² (about 264,934 sq ft) across floors 28 to 36 of Shibuya Scramble Square.

Source: Nikken Sekkei project page · MIXI GROUP Recruit

When did MIXI move to Shibuya Scramble Square?

The move was announced in November 2017 to bring three offices together; the mixi team started work there in December 2019 and the head office officially moved in March 2020. Before that it was in Sumitomo Fudosan Shibuya First Tower from April 2011.

Source: Relocation notice (Nov 8, 2017) · mixi operator blog (Mar 3, 2020) · mixi.co.jp history

Where was mixi founded?

The social network mixi opened in February 2004 from E-Mercury's office in the Dogenzaka Sepia Building in Shibuya. The company itself began in November 1997 with the job site Find Job! and was incorporated in June 1999.

Source: mixi operator blog (Mar 3, 2020) · mixi.co.jp history

What benefits does MIXI offer?

In Japan: ¥240,000 a year in cafeteria-plan points (up to ¥50,000 of it for concerts, theatre and other “invention” experiences), half-price lunches and café, a free drink bar, a massage room, five days of MIXI BREAK leave every five years and up to 40 days of banked “reserve leave”.

Source: MIXI GROUP Recruit, “Benefits & Programs” and “Workstyle”

Does MIXI allow remote work?

Yes. Under the “Marble Work Style”, each department chooses full remote work or the right number of office days, employees may live anywhere in Japan, and commuting costs, including flights and bullet trains, are paid up to ¥150,000 a month. Flextime runs 5:00–22:00 with no core time.

Source: MIXI GROUP Recruit, “Workstyle & Communication”

Can you visit MIXI's office?

The office floors are for employees and visitors with appointments, but MIXI's official recruiting channel has published a video tour of the head office, and the careers site shows photos of every area.

Source: MIXI_RECRUIT YouTube (2025) · MIXI GROUP Recruit, “Office”

How many people work at MIXI?

2,116 full-time employees in the group at the end of March 2026, 30.8% of them women. At MIXI, Inc. the average age is 38.1 and average tenure 6.2 years; group turnover was 7.5% in FY2026.

Source: mixi.co.jp company profile and ESG data

Who is MIXI's CEO?

Koki Kimura, Representative Director and President since June 2018, who started the Monster Strike project. Founder Kenji Kasahara is a director and senior executive officer.

Source: mixi.co.jp officers page

You have seen the office, the benefits and the pay