Nansei

What Nansei does

Nansei Co., Ltd. (株式会社ナンセイ) is a privately held Japanese company founded in July 1989 and headquartered in Edogawa, Tokyo, providing integrated interior demolition, industrial waste collection and transportation, intermediate waste processing, and scrap metal trading services. The company specializes in dismantling commercial interiors — retail stores, restaurants, offices, and tenant spaces — and manages the resulting waste end-to-end through its own processing facilities. It operates six intermediate processing factories (Kazo/Saitama, Misato/Saitama, Chiba, Yatomi/Aichi, Osaka, and Nakijin/Okinawa) with combined daily capacity exceeding 1,000 tons across crushing and compaction, alongside approximately 117 transport vehicles and 72 heavy machinery units. The company holds industrial waste collection and transport permits across 43 prefectures and designated cities and is ISO 9001 (since 2010) and ISO 14001 (since 2006) certified.

Nansei's revenue model spans three streams: project-based demolition and restoration contracts (per-project, often multi-year), volume-based (per cubic meter) waste acceptance fees at its intermediate processing facilities, and metal scrap trading margins via the 100%-owned subsidiary Nansei Steel Co., Ltd. (株式会社ナンセイスチール). The go-to-market is direct enterprise sales via inbound phone and web inquiries, supported by eight sales branch offices nationwide (Sapporo, Sendai, Chiba, Nagoya, Osaka, Okayama, Fukuoka, Naha) and trade show participation (SC BUSINESS FAIR, Asian Seamless Logistics Forum). Target buyer segments include commercial facility developers, building management firms, retail tenants, logistics warehouse operators, and general construction companies. Group companies include Nansei Steel (scrap metal, established December 2020), Nansei Environment (株式会社ナンセイ環境, environmental services, established June 2020), and I-People (株式会社アイ・ピープル, acquired December 2024). Group sales for the fiscal period May 2024 – April 2025 totaled ¥6,497,100,000 across 365 group employees. The company markets cost reductions of 20–25% versus industry benchmarks via fully in-house execution from demolition through disposal.

Name

Nansei

Legal name

株式会社ナンセイ

Website

https://nansei.jp

Company type

Private

Founded year

1989

Operating status

Operating

Headcount range

101–250 employees

Short description

Nansei Co., Ltd. (株式会社ナンセイ) provides integrated interior demolition, industrial waste collection and intermediate processing, and scrap metal trading services to commercial tenants, building operators, logistics firms, and construction companies across Japan using its own fleet and processing facilities.

Ownership category

akta.pro rank

Headquarters

HQ city

Edogawa

HQ country

Japan

HQ region

Asia

Offices18 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Infrastructure, Marketing or Sales, Technology or R&D

Revenue model

1. Interior demolition and restoration construction services: Nansei charges clients for interior demolition and restoration work on commercial spaces such as stores and tenants. Fees are project-based, determined by scope, scale, and complexity of work. The company manages everything from on-site survey through execution.
2. Industrial waste collection, transport, and intermediate processing: The company collects, transports, and processes industrial waste generated from demolition sites and other businesses. Revenue is generated through waste acceptance fees, often calculated by volume (m³). The company operates its own intermediate processing facilities in Saitama, Osaka, Aichi, and Okinawa.
3. Metal scrap purchasing and resale: Through group company NanseiSteel, the company purchases ferrous and non-ferrous metal scrap and resells to domestic and international buyers including steel manufacturers. Revenue is derived from price differentials on scrap commodities.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels6 records

Core offering

Nansei provides interior demolition, industrial waste collection and transportation, and scrap metal trading services. The company operates a one-stop service model covering commercial interior demolition, on-site waste collection and transport, intermediate processing at owned facilities, and resale of recovered scrap metals. Operations are supported by a self-owned fleet of over 100 transport vehicles, dozens of heavy machines, and licensed processing factories across Japan.

Product overview

Nansei operates as an integrated commercial environment solution provider offering a comprehensive suite of services centered on interior demolition, industrial waste processing, and scrap metal recycling. The core offering consists of three interconnected business segments: the Interior Demolition Division (内装解体事业部) handling commercial space dismantling and restoration work; the Industrial Waste Division (产廃事业部) managing collection, transportation, and intermediate processing through company-owned licensed facilities; and the Group Companies division including Nansei Steel for scrap metal processing and recycling. The company provides one-stop service from construction through disposal, leveraging owned vehicles, equipment, and processing facilities to control the entire workflow. Additional services include building demolition, scaffolding work, and cost-reduction consulting. The company operates multiple regional factories and has established group companies in Vietnam and Thailand for international metal recycling operations.

Differentiator

Problem solved

Functional benefit

Products and services

• Interior Demolition (内装解体) Interior demolition services for commercial spaces including stores, offices, and retail facilities. Services include pre-site investigation, protective covering, demolition work, waste removal, and cleaning. The company manages the entire process from construction through industrial waste processing. Targeted at commercial tenants and building managers needing reliable, code-compliant demolition.
• Industrial Waste Collection, Transport, and Intermediate Processing (産業廃棄物処理) Collection, transportation, and intermediate processing of industrial waste generated from demolition and business activities. The company operates multiple licensed processing facilities across Japan (Kazo, Chiba, Osaka, Yatomi, Nakijin) and manages waste sorting, crushing, compression, and recycling. Permits cover 43 prefectures and designated cities nationwide. Targeted at commercial and industrial waste generators needing licensed disposal.
• Restoration Work (原状回復工事) Restoration work that returns commercial spaces to their original condition as required by lease agreements. Includes interior demolition plus repair and finishing work to meet contract terms upon tenant move-out. Targeted at commercial tenants vacating leased premises and building managers requiring restored conditions.
• Building Demolition and Scaffolding Work (建物解体・とび工事) Building demolition services extending beyond interior work to include scaffolding setup, protective measures, and full structural demolition. Includes installation and removal of various scaffold types for construction projects. Targeted at construction firms and property owners requiring full or partial building demolition.
• Scrap Metal Recycling (スクラップ再生事業) Purchase and recycling of ferrous and non-ferrous metal scrap including iron, aluminum, stainless steel, and brass. Materials are sorted, processed, and sold domestically or exported for steel manufacturing. Operated through subsidiary Nansei Steel with cross-border agreements including a 2023 partnership with E'ya Lianejin Renewable Resources in China. Targeted at industrial scrap generators and metal recyclers.

Quantifiable outcome

• Construction costs reduced by 20-25% through integrated management and in-house operations
• +2 more outcomes

Named customers7 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

Feature3 records

Partnerships

One partnership is on record.

• 欧冶錬金再生資源有限公司 (E'ya Lianejin Renewable Resources)coreStrategic or Co-development Partner · 27 June 2023NanseiSteel signed a joint business agreement with E'ya Lianejin Renewable Resources Co., Ltd. (China) for collaborative scrap metal recycling operations, expanding cross-border resource circulation networks.

Scale indicators8 records

Recent moves11 records

Expansion highlights6 records

Broad incumbents

• Republic Services, Inc. Major U.S. environmental services company offering collection, recycling, and disposal. Comparable operating model for an integrated waste services business; serves as a broad incumbent benchmark for the sector.
• Clean Harbors, Inc. North American provider of environmental and industrial services including hazardous waste management and disposal. Comparable in handling regulated industrial waste streams, though at much larger scale and with different geographic mix.
• Waste Management, Inc. Largest North American waste management company providing collection, transfer, recycling, and disposal services. Provides a global incumbent benchmark for valuation and operating model, though focused on municipal solid waste rather than Japanese commercial demolition.
• Veolia Environnement S.A. Global environmental services leader with waste management, water and energy operations. Comparable as a broad incumbent in the waste management and recycling industry with similar integrated service offerings.
• Kobelco Eco Solutions Co., Ltd. Subsidiary of Kobe Steel group providing waste treatment, water treatment and recycling plant engineering. Broader incumbent in environmental services with overlapping waste processing capabilities but operating at larger infrastructure scale than Nansei.

Direct peers

• Daiseki Co., Ltd. Japan's largest dedicated industrial waste management company (TSE: 1412), providing collection, transport, intermediate processing, and recycling of industrial and specially-controlled waste. Directly comparable to Nansei in waste management operations, though Daiseki is significantly larger and listed.
• Yondenko Corporation: Japanese construction services company with demolition and electrical works divisions serving commercial and industrial clients. Comparable to Nansei's interior demolition and restoration construction segment.
• Asahi Eito Kankyo Co., Ltd. Japan-based industrial waste collection, transport and processing operator. Directly comparable in core waste services and customer base, particularly for industrial and commercial waste generators.
• Recycle One, Inc. Japanese recycling and industrial waste processor with collection/transport operations and processing facilities, focused on resource recovery from industrial waste streams. Closely comparable to Nansei's intermediate processing and scrap resale business.
• Takeei Corporation: Japanese industrial and general waste management company with a similar integrated model of collection, transport, intermediate processing and recycling. Comparable customer profile of industrial and commercial waste generators across Japan.

Market position

Strengths4 records

Weaknesses3 records

Competitive moat6 records

Key risks4 records

Key highlights6 records

Customer concentration

• Xx.com/nanseicoltd
• YouTubeyoutube.com/channel/UCz8V5p6KZ9v4x
• Facebookfacebook.com/nanseicoltd

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Subsidiaries3 records

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 Nansei