What Daiseki does

Daiseki Co., Ltd. (株式会社ダイセキ) is a Japanese environmental engineering company founded in 1958 and headquartered in Nagoya, Aichi Prefecture. Listed on the Tokyo Stock Exchange Prime Market (ticker 9793) since 1999, Daiseki was the first industrial waste processing company to list on a Japanese stock exchange. The company operates a nationwide industrial waste processing and recycling platform spanning seven regional offices, seven wholly-owned group subsidiaries, and collection permits across all 47 Japanese prefectures plus nationwide port waste oil permits from the Ministry of Land, Infrastructure, Transport and Tourism. In FY2024 the company processed approximately 197,000 tonnes of waste (consolidated) with a recycling rate near 89%, achieved without operating any incinerators. Approximately 93% of total sales derive from environmental and recycling operations.

The company's core technology portfolio centers on thermal recycling and a proprietary composite treatment process that blends different waste liquids together without chemical agents, eliminating byproducts and achieving high recycling rates. Core capabilities include conversion of waste oil and solvents into recycled fuel substituted for coal and heavy oil in cement kilns, conversion of industrial sludge into cement raw material replacing limestone, and lead battery refining to 99.99% purity at subsidiary Daiseki MCR using Japan's only gas smelting furnace. In 2025, Daiseki acquired the MOF (Metal-Organic Frameworks) business from Nagoya University venture SyncMOF, extending the platform into ammonia, CO2, and hydrogen capture applications. The company holds 4 granted patents with 5 applications pending (FY2024), maintains company-wide ISO 14001 certification, and is the first Nagoya City Excellent Industrial Waste Processor (2011).

Daiseki generates revenue primarily through transaction-based waste processing fees and recycled product sales to enterprise customers in manufacturing (automotive, chemical, steel, cement, food), construction, and government/municipal sectors, with secondary revenue from environmental analysis and consulting services. The go-to-market is direct sales via field representatives conducting on-site waste sampling (~1kg samples) and tailored proposals, supported by route-based regular customer visits, a 24/7 emergency response helpline for industrial incidents, and licensed collection vehicles. Recycled outputs include recycled fuel, biodiesel from waste cooking oil, recycled lead ingots, gypsum board raw materials, and useful metals. The company is SBTi-certified for Well-below 1.5°C-aligned targets, holds CDP Score A for climate/water/forest disclosure, is a constituent of FTSE Blossom Japan Index, a founding member of Circular Economy Partners, and a participant in GX League, J4CE, and the UN Global Compact.

Name

Daiseki

Legal name

株式会社ダイセキ (Daiseki Co., Ltd.)

Website

https://daiseki.co.jp

Company type

Public

Founded year

1958

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Daiseki Co., Ltd. is a Japanese environmental engineering company that recycles industrial waste—waste oil, liquids, sludge, contaminated soil, and lead—into recycled fuel, cement raw materials, and metals for Japanese manufacturing clients, with environmental operations generating approximately 93% of consolidated revenue.

Ownership category

akta.pro rank

Product category

Industrial Waste Recycling Services

NAICS

Hazardous Waste Treatment and Disposal (562211), Waste Collection (5621)

SIC

Hazardous Waste Management (4955), Refuse Systems (4953)

akta.pro primary industry

Used Oil & Oily Waste Management (Collection, Re-refining, Disposal) (BPALAFAI)

akta.pro secondary industry

Industrial Waste-to-Energy (Non-Hazardous Process Wastes) (EUACAIAI)

Keywords

• Industrial waste recycling
• Waste liquid treatment
• Contaminated soil remediation
• Lead battery recycling
• Recycled fuel production

Headquarters

HQ city

Nagoya

HQ country

Japan

HQ region

Asia

Offices7 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Waste Collection and Intermediate Processing Services: Core business collecting and processing industrial waste including waste oil, waste liquids, sludge, and special management industrial waste. Revenue from treatment fees charged to manufacturing clients.
2. Recycled Fuel and Biodiesel Sales: Sales of再生燃料 (recycled fuel), auxiliary fuel, recycled heavy oil, and biofuel produced from waste cooking oil. Sold to cement companies and industrial users as fossil fuel alternatives.
3. Other Recycling Products: Sales of useful metals, reagents, gypsum board materials, recycled lead, and paper products derived from industrial waste processing.
4. Contaminated Soil Remediation Services: Soil decontamination services for construction and demolition sites, returning purified soil for use as cement raw material.
5. Lead Recycling Products: Sales of recycled lead ingots (99.99% purity) manufactured by subsidiary Daiseki MCR, supplied to battery manufacturers.
6. Environmental Analysis and Consulting: Waste composition analysis, environmental testing, and consulting services for waste reduction and recycling optimization.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels5 records

Core offering

Daiseki is an environmental engineering company that collects, processes, and recycles industrial waste generated by Japanese manufacturers, converting waste oil, waste liquids, sludge, contaminated soil, used lead batteries, and gypsum board into reusable resources such as recycled fuel, cement raw material, lead ingots, and biodiesel. It operates a nationwide network of seven offices and seven group companies with ISO 14001-certified processing facilities, and extends its offering into MOF-based gas separation and petrochemical products.

Product overview

Daiseki is an environmental creation company that operates a comprehensive industrial waste processing and recycling business across Japan. The core offering is a portfolio of waste treatment and recycling services — specifically waste oil recycling (producing recycled fuel), waste liquid recycling via composite treatment, and sludge recycling into cement raw materials — supported by a nationwide network of 7 offices and 7 group companies. The portfolio extends to specialized recycling domains including contaminated soil/construction waste, lead battery recycling, gypsum board recycling, tank cleaning, and biodiesel fuel production, all unified under the goal of realizing a circular economy. The company also manufactures and sells petrochemical products (release agents, industrial lubricants, rust inhibitors) through the petroleum chemicals division. The MOF (Metal-Organic Frameworks) initiative, acquired from Nagoya University spin-off SyncMOF, represents a newer technology pillar targeting ammonia, CO2, and hydrogen capture applications.

Differentiator

Problem solved

Functional benefit

Products and services

• Waste Oil Processing and Recycling (廃油処理・リサイクル) Collects and recycles waste oil and waste solvents from factories and dealers, converting them into recycled fuel used as a substitute for coal and heavy oil in cement and industrial applications, supporting thermal recycling and reduced fossil fuel consumption.
• Waste Liquid Processing and Recycling (廃液処理・リサイクル) Uses a composite treatment method that blends different waste liquids without chemical agents to eliminate byproducts and achieve high recycling rates, serving manufacturers that generate difficult-to-process waste liquids.
• Sludge Processing and Recycling (汚泥処理・リサイクル) Recycles factory-generated industrial sludge into cement raw materials, reducing consumption of limestone and other natural resources while extending the life of final disposal sites.
• Contaminated Soil and Construction Waste Recycling (汚染土壌・建設関係廃棄物リサイクル) Recycles contaminated soil and construction waste from demolition and construction sites into cement raw materials, supporting site purification and biodiversity protection.
• Lead Recycling (鉛リサイクル) Collects, separates, smelts, and refines waste lead batteries into 99.99% purity lead ingots using Japan's only gas smelting furnace, supplying battery manufacturers with low-CO2-emission recycled lead.
• Petroleum Tank Cleaning (石油タンク清掃) Provides unmanned tank washing using the COW method to safely and quickly remove crude oil sludge from large crude oil tanks with minimal personnel and short construction periods, delivered by subsidiary System Kogyo.
• Gypsum Board Recycling (石膏ボードリサイクル) Collects and separates waste gypsum boards from demolition sites into raw materials for recycled gypsum board and recycled paper, ranking among the top in Japan and internationally.
• Biodiesel Fuel (バイオディーゼル燃料) Recycles used cooking oil into biodiesel fuel suitable as a substitute for diesel, supporting carbon neutrality by avoiding food competition and reducing sulfur oxide emissions.
• Petrochemical Products (石油化学製品) Manufactures and sells concrete and plastic release agents (including Pane-roru), industrial lubricants, rust inhibitors, and other specialty chemical products leveraging long-standing petrochemical expertise.
• MOF-based Environmental Solutions (MOFによる社会課題解決) Applies Metal-Organic Frameworks (MOF) technology acquired from SyncMOF for ammonia, CO2, and hydrogen capture applications, addressing environmental and energy challenges using selective gas adsorption.
• Environmental Analysis and Research (環境関連分析・研究) Provides waste composition analysis, environmental testing, and consulting services to help customers optimize waste reduction and recycling, including emergency wastewater processing support.

Named customers5 records

Segments3 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Seven partnerships are on record, tiered core and minor.

• SyncMOF (SyncMOF株式会社)coreStrategic or Co-development Partner · 1 January 2025Daiseki acquired the MOF (Metal-Organic Frameworks) business from Nagoya University venture company SyncMOF. The acquisition includes Amunite technology for ammonia recovery applications. Daiseki had collaborated with SyncMOF since 2020 on MOF-based adsorption agents for environmental applications.
• Circular Economy Partners (CPs)coreStrategic or Co-development PartnerJoined in December 2023 as founding member. Industry-government-academia partnership for circular economy promotion. Daiseki participates in CPs initiatives for resource efficiency and circular resource utilization through collaborative industry efforts.
• GX LeaguecoreStrategic or Co-development PartnerJoined May 2023 as participating company. Ministry of Economy, Trade and Industry framework for carbon neutrality. Daiseki participates in voluntary emissions trading and decarbonization initiatives.
• UN Global CompactcoreStrategic or Co-development PartnerSigned April 2025. Daiseki joined the UN initiative with 10 principles covering human rights, labor, environment, and anti-corruption. Participates in Japan Local Network (Global Compact Network Japan).
• Japan Circular Economy Partnership (J4CE)minorStrategic or Co-development PartnerJoined October 2021. Public-private partnership initiated by Ministry of Environment, Ministry of Economy Trade and Industry, and Keidanren for circular economy understanding and promotion.
• Science Based Targets initiative (SBTi)coreStrategic or Co-development PartnerCertified November 2022 for Well-below 1.5C aligned emissions reduction targets. Joint initiative of CDP, UN Global Compact, WRI, and WWF.
• Shinshiro City PartnershipminorStrategic or Co-development PartnerComprehensive partnership agreement signed June 11, 2025 for circular economy promotion and regional development. Includes disaster waste management cooperation. Daiseki to conduct ammonia recovery demonstration using sludge facility.

Scale indicators5 records

Recent moves9 records

Expansion highlights5 records

Direct peers

• Dowa Holdings: Japanese non-ferrous metals and recycling conglomerate with Eco Business segment covering waste treatment, metal recovery, and soil remediation. Comparable in vertical integration and exposure to Japanese manufacturing waste streams.
• JFE Environmental Solutions: Subsidiary of JFE Holdings operating industrial waste treatment and recycling in Japan. Most direct domestic competitor to Daiseki across contaminated soil remediation, sludge processing, and waste liquid treatment.
• Clean Harbors: North America's leading hazardous waste management company offering collection, treatment, recycling, and disposal. Comparable in industrial waste focus and emphasis on resource recovery rather than incineration-only disposal.
• Asahi Holdings: Japanese precious metals and recycling company with environmental business covering industrial waste and metal recovery. Comparable as a Japanese-listed recycling specialist focused on resource recovery from industrial waste streams.
• Stericycle: US-based hazardous and regulated waste management provider serving enterprise customers. Comparable in regulated industrial waste handling, though more focused on medical waste. Useful for benchmarking scale and compliance-driven revenue.
• Mitsubishi Materials: Japanese metals and recycling group with environmental business division covering e-waste, metal recovery, and industrial waste. Comparable as a Japanese diversified recycling operator with similar customer base across manufacturing.

Broad incumbents

• Veolia Environnement: French environmental services giant with global hazardous waste treatment, recycling, and resource recovery operations. Operates at vastly larger scale across geographies and serves as the global benchmark for industrial circular economy services.
• Waste Management Inc. Largest North American environmental services provider offering collection, recycling, and disposal. Comparable as a public, regulated industrial waste operator; useful for benchmarking capital allocation and recycling economics at scale.
• Republic Services: Major US waste management and recycling company serving commercial, industrial, and municipal customers. Comparable in transaction-based industrial waste pricing and recycling focus, though far larger scale and broader service portfolio.

Regional players

• Remondis: German family-owned waste and recycling company with strong industrial and hazardous waste operations across Europe. Comparable in circular economy positioning and industrial waste focus, but operates primarily in European rather than Asian markets.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries8 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 Daiseki