IZAK
IZAK (株式会社アイザック), founded 1953 and based in Toyama, Japan, operates two divisions: industrial waste processing (313,000 tons/year) and corrugated cardboard manufacturing (210M boxes/year), serving manufacturing, food, pharmaceutical, and government clients across Japan via direct enterprise field sales.
- Company typePrivate
- Founded1963
- HeadquartersUozu, Japan
- Headcount251–500
- GTM typeB2B
- OfferingServices
What IZAK does
IZAK Co., Ltd. (株式会社アイザック) is a privately held, family-controlled (Ishizaki family) Japanese conglomerate headquartered in Uozu, Toyama Prefecture, founded in 1953 and employing approximately 462 people (as of May 2026). The company operates two core business divisions: an Environmental Business Division providing end-to-end industrial waste management — collection, transportation, intermediate treatment, recycling, and final disposal — processing roughly 313,000 tons of waste annually across a portfolio that includes incineration, chemical treatment, biological treatment, and mixed treatment facilities; and a Package Business Division manufacturing corrugated cardboard, producing approximately 210 million boxes per year and holding a recognized Japan-first position in functional cardboard technology, including the award-winning Cool Dan insulated case (World Star Award, 1986) and Medibox medical packaging (Japan Package Award, 1990).
Underlying the two core divisions is a complementary industrial platform: IZAK operates roughly 15MW of renewable energy capacity spanning waste-to-energy, 14 solar sites totaling ~11,100kW, and biomass generation, supplying approximately 31% of group electricity needs via a 2025-launched offsite PPA with Hokuriku Electric — a first in the Hokuriku region. A broader group of 13 companies provides integrated capabilities: IZAK Transport handles waste collection logistics, IZAK-ALL operates managed final-disposal sites and hospitality assets (Hotel R9 The Yard, Hotel Grand Mirage, Garaku resort, Rakusuitei Art Museum, Kosugi Country Club), IZAK-U distributes aluminum construction materials, and Toyama Green Food Recycling operates biogas from food waste. The company maintains ISO 14001 (Environmental, 2001), ISO 9001 (Packaging, 2001) and Eco Action 21 (Transport, 2009) certifications.
IZAK generates revenue primarily through transaction-fee B2B contracts in both divisions: per-ton waste processing fees (with revenue from tipping fees, recycling material sales, and J-Credit CO2 reduction certificates) and per-box cardboard manufacturing sales to enterprise customers across food, precision instruments, pharmaceuticals, and communications distribution. Go-to-market is direct enterprise field sales, structured by both the Environmental Business Division and Package Business Division with dedicated sales personnel across approximately 13 locations covering Hokuriku, Kansai, Chubu, Kanto, and Tohoku regions of Japan. Recent commercial activity (2024-2026) signals deliberate diversification into pharmaceutical packaging, CO2-free electricity supply, circular economy policy infrastructure (Circular Partners, METI), disaster response BCP partnerships with multiple municipalities, and consumer-facing branded cardboard products (Kakkee-na bench; Recyclin BOX with Hokuriku Coca-Cola Bottling).
IZAK firmographics
Firmographics- Name
- IZAK
- Legal name
- 株式会社アイザック (IZAK CO.,LTD.)
- Website
- https://izak.co.jp
- Company type
- Private
- Founded year
- 1963
- Operating status
- Operating
- Headcount range
- 251–500 employees
- Short description
- IZAK (株式会社アイザック), founded 1953 and based in Toyama, Japan, operates two divisions: industrial waste processing (313,000 tons/year) and corrugated cardboard manufacturing (210M boxes/year), serving manufacturing, food, pharmaceutical, and government clients across Japan via direct enterprise field sales.
- Ownership category
- akta.pro rank
IZAK industry classification
Industry- Product category
- Industrial Waste Management & Corrugated Packaging
- NAICS
- Corrugated and Solid Fiber Box Manufacturing (322211), Hazardous Waste Treatment and Disposal (562211), Materials Recovery Facilities (56292)
- SIC
- Public Warehousing & Storage (4220), Sanitary Services (4950)
- akta.pro primary industry
- Corrugated Packaging & Boxes (RSC, die-cut, bulk bins) (IMAMAHAA)
- akta.pro secondary industries
- Industrial Packaging Waste Services (Pallets, Cardboard, Film, IBCs/Drums—Non-hazardous) (EUAIAGAD), Bulking, Sorting & Pre-Processing Facilities (Screening, Shredding, Size Reduction) (EUAIABAJ), Emergency Waste Packaging, Transportation & Disposal (Post-incident) (EUAIAMAH)
Keywords
Where IZAK is headquartered
LocationHeadquarters
- HQ city
- Uozu
- HQ country
- Japan
- HQ region
- Asia
Offices17 records
Markets served
IZAK business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Infrastructure, Technology or R&D, Supply Chain, Marketing or Sales
Revenue model
- 環境事業（産業廃棄物処理・リサイクル）: 産業廃棄物の「収集・運搬」「中間処理」「リサイクル」「最終処分」まで一貫したサービスを提供。廃棄物の処理手数料、リサイクル収益、エネルギー回収発電による収益を含む。313,000t/年の廃棄物を処理。
- パッケージ事業（ダンボール製造）: ダンボール製品・功能性ダンボールの製造販売。210,000,000箱/年のダンボールを製造。的客户は食品、精密機器、医薬品、通信販売など多業種。
- グループ施設運営事業: ホテルグランミラージュ、リバーリトリート雅樂俱、小杉カントリークラブなどグループ施設の運営。
- 建材事業（アイザック・ユー）: アルミ建材やサッシを主力とするビル・住宅の建築資材取り扱い。
Go-to-market motion2 records
Distribution channels4 records
Marketing channels7 records
IZAK product offering
Product offeringCore offering
IZAK operates two core business divisions. The Environmental Business Division provides end-to-end industrial waste management covering collection and transport, intermediate treatment, recycling, and final disposal of 313,000 tonnes per year. The Package Business Division manufactures corrugated cardboard and functional packaging (210 million boxes per year), including Japan's first functional cardboard with specialized properties such as water resistance, insulation, and cold-chain capability.
Product overview
IZAK operates two core business divisions: the Environmental Business Division providing comprehensive industrial waste management services (collection, intermediate treatment, recycling, and final disposal), and the Package Business Division manufacturing corrugated cardboard and functional packaging solutions. IZAK was the first company in Japan to develop functional cardboard with specialized properties. The company also operates renewable energy generation through waste-to-energy, solar, and biomass facilities with approximately 15MW total capacity. Group companies provide complementary services including transportation, final disposal, hotel operations, golf courses, and cultural facilities.
Differentiator
Problem solved
Functional benefit
Products and services
- Industrial Waste Processing Services End-to-end industrial waste management services covering collection, transport, intermediate treatment, recycling, and final disposal. Operates incineration, chemical, biological, and mixed treatment facilities. Serves manufacturing companies across multiple industries with one-stop environmental solutions.
- Corrugated Cardboard Packaging Materials Custom-designed and manufactured corrugated cardboard packaging including printing, cutting, die-cutting, and assembly. Produced at Toyama (Nakazawa) and Tochigi (Nogi) factories.
- Functional Cardboard (Kuludan) Specially engineered corrugated packaging with enhanced properties including water resistance, insulation, cold-chain capability, and structural strength for pharmaceutical, medical, and specialized industrial use.
- Power Generation & Renewable Energy Renewable energy generation from waste-to-energy, solar power (14 sites, approximately 11,100 kW), and biomass. Total group capacity approximately 15 MW, supplying electricity equivalent to approximately 10,000 households annually and reducing CO2 by 11,229 t-CO2 per year.
- Biomass Power Generation Power generation using methane gas refined from food waste at the Toyama Green Food Recycling facility. Forms part of IZAK's renewable energy portfolio contributing to carbon-neutral initiatives.
Quantifiable outcome
- 313,000 t/年の産業廃棄物を適正処理（2024年度実績）
- +3 more outcomes
Companies that use IZAK
Customer profileNamed customers6 records
Segments3 records
Ideal customer profiles3 records
IZAK technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature8 records
IZAK partnerships and signals
Strategic signalPartnerships
Eleven partnerships are on record, tiered core and minor.
- 富山県魚津市core「災害時における移動式宿泊施設等の提供に関する協定」を締結。アイザックが魚津市釈迦堂地内に所有する「HOTEL R9 The Yard 魚津」を有事の際にレスキューホテルとして魚津市へ提供。
- 株式会社デベロップcore富山県魚津市との3者による「災害時における移動式宿泊施設等の提供に関する協定」。アイザックが所有する「HOTEL R9 The Yard 魚津」を運営。
- サーキュラーパートナーズ（Circular Partners / CPs）core経済産業省が主導するサーキュラーエコノミーの実現に向け产官学の連携を促進するパートナーシップ。脱炭素と循環型経済社会の実現に向け、事業者・自治体・学術機関との連携を通じて資源の循環利用を推進する。50年以上にわたり培ってきた産業廃棄物処理の経験と知見を活かし参加。
- 北陸電力株式会社core北陸電力の余剰電力活用サービスを採用し、環境事業本部エネルギーセンター内の発電施設で発電した廃棄物由来CO2フリー電気を遠隔地にあるアイザックグループ各拠点へ供給するオフサイトPPAモデルを開始。北陸地域初の取り組み。年間約330万kWh供給、年約1,700tのCO2削減を見込む。
- 入善町（富山県下新川郡）minor「災害時における協力体制の構築等に関する協定」を締結。災害時における災害廃棄物処理や段ボール製品の供給、環境教育などの協力を行う。
- 四日市市（三重県）core四日市市との「災害時における災害廃棄物の処理等に関する協定」及び「災害時における物資の供給に関する協定」を締結。アイザックグループ3社で災害廃棄物の撤去・収集・運搬・処分などを行う。
- 舟橋村（富山県中新川郡）minor「災害時における協力体制の構築等に関する協定」を締結。災害時における災害廃棄物処理や段ボール製品の供給、小中学校での環境教育などの協力を行う。
- 富山グラウジーズminor富山グラウジーズ（バスケットボール）とのofficialsponsor契約を締結。地域のスポーツ・文化の振興に寄与。
- カターレ富山minorカターレ富山（サッカー）とのofficialsponsor契約を締結。地域のスポーツ・文化の振興に寄与。
- KUROBEアクアフェアリーズminorKUROBEアクアフェアリーズ（バレーボール）とのofficialsponsor契約を締結。地域のスポーツ・文化の振興に寄与。
- アランマーレ富山minorアランマーレ富山（ハンドボール）とのofficialsponsor契約を締結。地域のスポーツ・文化の振興に寄与。
Scale indicators8 records
Recent moves10 records
Expansion highlights6 records
IZAK competitors and assessment
Company assessmentBroad incumbents
- Rengo Co., Ltd. Japan's largest corrugated packaging manufacturer with nationwide production and integrated paper-to-box operations; directly comparable to IZAK's 210M-box/year packaging business but at vastly greater scale across all paper-packaging formats.
- Daio Paper Corporation: Integrated Japanese paper and packaging producer with corrugated container, paperboard, and recycling operations; comparable manufacturing footprint and product overlap to IZAK's package business.
- Oji Holdings Corporation: Major Japanese paper and packaging conglomerate with corrugated, containerboard, and forestry operations; competes with IZAK's packaging division and supplies inputs across the paper value chain.
- Toyo Seikan Group Holdings, Ltd. Diversified Japanese packaging manufacturer spanning metal, plastic, paper, and glass containers; comparable to IZAK in packaging breadth and B2B customer focus across food and consumer goods.
- Hitachi Zosen Corporation: Major Japanese industrial group with environmental systems including waste incineration, energy-from-waste plants, and recycling equipment; provides technology and scale comparable to IZAK's energy-from-waste business.
- Nippon Paper Industries Co., Ltd. One of Japan's largest paper manufacturers producing containerboard and packaging materials; an upstream-and-overlap comparable to IZAK's corrugated packaging division.
Direct peers
- Daiseki Co., Ltd. Japan's leading industrial waste management and recycling company with end-to-end collection-to-final-disposal services; the closest pure-play peer to IZAK's Environmental Business Division processing 313,000 tonnes/year.
- Ecore Co., Ltd. South Korea-headquartered industrial waste recycling and packaging manufacturer with operations similar to IZAK — combining waste processing with paper-packaging output; a cross-border regional comparable.
- Takuma Co., Ltd. Japanese engineering and EPC firm specializing in waste-to-energy plants, biomass, and environmental infrastructure; comparable to IZAK's waste-power generation operations (~15MW) and broader environmental engineering scope.
Emerging players
- Kureha Corporation: Japanese specialty chemicals and environmental engineering company with industrial waste treatment and recycling capabilities; comparable in environmental services scope though much smaller scale than IZAK's processing operation.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
IZAK social profiles
Digital presenceIZAK compliance and trust
Trust signalCompliance3 records
IZAK financial estimates
Financial estimateRevenue estimate
Valuation estimate
IZAK leadership team
Management profileNumber of profiles
Profiles11 records
IZAK subsidiaries and ownership
Company hierarchySubsidiaries7 records
IZAK funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
IZAK M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about IZAK
What does IZAK do?
IZAK operates two core business divisions. The Environmental Business Division provides end-to-end industrial waste management covering collection and transport, intermediate treatment, recycling, and final disposal of 313,000 tonnes per year. The Package Business Division manufactures corrugated cardboard and functional packaging (210 million boxes per year), including Japan's first functional cardboard with specialized properties such as water resistance, insulation, and cold-chain capability.
Is IZAK a public or private company?
IZAK is a private company. It is classified as family owned and is currently operating.
When was IZAK founded?
IZAK was founded in 1963. It employs 251 to 500 people.
Where is IZAK based?
IZAK is headquartered in Uozu, Japan, in the Asia region.
How does IZAK make money?
Four revenue lines are on record. 環境事業（産業廃棄物処理・リサイクル） is the primary driver. The others are パッケージ事業（ダンボール製造）, グループ施設運営事業 and 建材事業（アイザック・ユー）.
Who are IZAK's main competitors?
Broad incumbents on record are Rengo Co., Ltd., Daio Paper Corporation, Oji Holdings Corporation, Toyo Seikan Group Holdings, Ltd., Hitachi Zosen Corporation and Nippon Paper Industries Co., Ltd.. Direct peers are Daiseki Co., Ltd., Ecore Co., Ltd. and Takuma Co., Ltd.. Kureha Corporation is listed as an emerging player.
Does IZAK have an API?
No public API is recorded for IZAK.
What industry is IZAK in?
IZAK's product category is Industrial Waste Management & Corrugated Packaging. Its primary akta.pro industry code is IMAMAHAA, Corrugated Packaging & Boxes (RSC, die-cut, bulk bins), with a secondary code of EUAIAGAD, Industrial Packaging Waste Services (Pallets, Cardboard, Film, IBCs/Drums—Non-hazardous). Its NAICS code is 322211 and its SIC code is 4220.