REM

What REM does

REM Inc. (株式会社アール・イー・エム), commonly branded "REM," is a Tokyo-based interior design and construction company founded in May 2005 with continuous operations for 18+ years. The firm is headquartered in Shibuya, Tokyo, registered as a Japanese stock corporation with paid-in capital of ¥20 million, and led by Representative Director Yoshioka Masakazu. It holds a Special Class A construction license issued by the Tokyo Governor (東京都知事許可（特-29）第133366), permitting large-scale and public-works projects.

The company's core offering is a "Total Production" one-stop service model that bundles interior design, layout and equipment engineering, construction management, furniture design and supply, relocation consulting, and post-construction maintenance into a single integrated engagement. REM executes six service categories: office interior construction, building renovation and real-estate regeneration, residential/mansion interior work, store interior construction, collaborative projects with external design firms, and miscellaneous specialty construction (clinics, exhibition booths, restoration). Its underlying technical platform is its established direct-contractor network, which it claims allows it to bypass intermediary layers and deliver cost-competitive quotes, combined with in-house design and project-management capability. The firm does not maintain mobile apps, public APIs, SDKs, or MCP integrations, and has no patents, trademarks, or awards on file.

Commercially, REM is a project-based professional services business that generates revenue through one-off construction and design engagements priced via custom quotes tied to scope, size, and complexity. It runs a hybrid enterprise field-sales plus direct-to-consumer go-to-market: the enterprise side pursues corporate offices, hospitality, and retail projects in Greater Tokyo through inbound web/phone inquiries, referrals, and design-firm introductions; the consumer side handles individual property owners and residential renovation/re-generation. Geographic scope is single-country/domestic, limited to the Greater Tokyo metropolitan area (Tokyo, Kanagawa, Saitama, and Chiba). The primary banking relationship is MUFG Bank, Shinjuku-Chuo branch.

Name

REM

Legal name

株式会社アール・イー・エム

Website

https://re-m.co.jp

Company type

Private

Founded year

2005

Operating status

Operating

Headcount range

1–10 employees

Short description

REM Inc. is a Tokyo-based interior design and construction firm offering end-to-end office, retail, residential, and building renovation services across Greater Tokyo for corporate clients, building owners, and individual property owners.

Ownership category

akta.pro rank

Product category

Interior Construction & Renovation Services

NAICS

Residential Remodelers (236118), Residential Building Construction (23611)

SIC

General Bldg Contractors - Residential Bldgs (1520), General Bldg Contractors - Nonresidential Bldgs (1540)

akta.pro primary industry

Renovation, Remodeling & Tenant Improvements (General Contracting) (IMAFAAAE)

akta.pro secondary industry

Architectural Reconfiguration & Structural Alterations (HSAPAEAB)

Keywords

• Interior construction services
• Office renovation
• Building renovation
• Commercial interior design
• Residential renovation

Headquarters

HQ city

Akasaka

HQ country

Japan

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Supply Chain, Operations, Marketing or Sales, Others

Revenue model

1. Interior Construction Services: Project-based interior design and construction services for offices, retail stores, residential properties, hotels, and other commercial spaces. Revenue generated through one-time project fees based on scope of work.

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels3 records

Core offering

REM (株式会社アール・イー・エム) provides interior design, construction, and renovation services for offices, retail stores, residential properties, and full-building projects across the Greater Tokyo metropolitan area (Tokyo, Kanagawa, Saitama, Chiba). Its six core service categories — office interior construction, building renovation, residential/mansion interior construction, store interior construction, design firm collaboration construction, and other specialized construction (clinics, exhibition booths, maintenance, restoration) — are delivered through an integrated Total Production model spanning layout/design, equipment design, construction management, furniture/equipment fabrication, relocation consulting, and post-construction maintenance.

Product overview

REM (株式会社アール・イー・エム) is a Tokyo-based interior construction and renovation company providing comprehensive space creation services. The company operates a unified service model centered on six core construction service categories: office interior construction, building renovation, residential/mansion interior construction, store interior construction, design firm collaboration projects, and other specialized construction services. REM differentiates itself through a total-produce approach, offering integrated design, construction, and maintenance services from a single provider, combined with cost optimization through their established network of partner companies.

Differentiator

Problem solved

Functional benefit

Products and services

• Office Interior Construction Services Complete office interior construction and renovation services including design, layout planning, equipment installation, and move management for corporate relocations, targeted at corporate clients in the Greater Tokyo metropolitan area.
• Building Renovation Services Full building renovation and real estate regeneration services including interior and exterior renovation, seismic reinforcement, and waterproofing, for property owners and real estate investors seeking to maximize asset value.
• Residential and Mansion Interior Construction Residential interior construction and renovation services for homes and condominiums, providing functional and aesthetic living spaces for individual property owners and residential investors.
• Store Interior Construction Store interior construction services including concept expression, atmosphere design, and facility proposals for creating successful retail and hospitality spaces, targeted at retailers, restaurants, bars, and hotels.
• Design Firm Collaboration Construction Construction services delivered in collaboration with design firms (設計事務所), supporting designers' creative vision with high quality and cost performance while handling special designs through close coordination.
• Other Construction Services Miscellaneous construction services including clinic fit-outs (e.g., Gotanda clinic buildout at 36 tsubo), exhibition booth planning and design, maintenance work, and restoration construction.
• Total Produce (One-Stop Service) Comprehensive one-stop service covering design, construction, and post-construction maintenance, eliminating the need for clients to coordinate multiple vendors across the entire interior project lifecycle.

Quantifiable outcome

• Cost reduction through elimination of middle margins via direct contractor relationships
• +1 more outcomes

Named customers4 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Scale indicators4 records

Recent moves5 records

Expansion highlights5 records

Broad incumbents

• Takenaka Corporation: Takenaka is one of Japan's largest general contractors, with deep capabilities in office, retail, and building construction across Greater Tokyo — a broad incumbent that competes with REM on large-scale commercial and institutional interior projects.
• Shimizu Corporation: Shimizu is a top-tier Japanese general contractor with extensive office, commercial, and renovation capabilities — a broad incumbent whose interior construction division overlaps directly with REM's service offering on larger projects.
• Kajima Corporation: Kajima is a major Japanese construction and real estate developer with a dedicated interior and renovation business unit, representing a broad incumbent peer for REM's commercial and office interior work in the Tokyo market.
• Taisei Corporation: Taisei is one of Japan's 'super general contractors' with substantial office, retail, and tenant improvement capabilities — a broad incumbent peer whose interior fit-out division competes with REM for enterprise projects.

Others

• ACTUS: ACTUS is a Japan-based interior lifestyle retailer and furniture brand with interior design consulting services — a thematic ecosystem participant that overlaps with REM on residential and commercial interior design, primarily as a furnishing partner.
• Karimoku: Karimoku is a major Japanese furniture manufacturer and supplier participating in the interior ecosystem that REM serves — relevant as a furniture/material supplier and ecosystem participant, not a direct competitor for design-build services.

Direct peers

• M Moser Associates: M Moser Associates is a global workplace design and build firm with strong presence across Asia-Pacific — directly comparable to REM as a full-service office design and construction provider for enterprise clients.
• TANK Co., Ltd. TANK is a Tokyo-based office interior design and construction firm providing integrated design-build services for corporate office fit-outs — directly comparable to REM's office interior construction offering in the same Greater Tokyo market.
• IA Interior Architects: IA Interior Architects is a global workplace design firm that competes for office interior fit-out and design-build engagements — functionally equivalent to REM for cross-border enterprise clients evaluating Japanese office projects.
• Wonderwall Inc. Wonderwall is a Tokyo interior design studio led by Masamichi Katayama with deep retail, restaurant, and commercial interior work, including flagship retail stores — directly comparable to REM on retail, restaurant, and high-design commercial interior projects.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about REM