历史沿革
住友林业绿化株式会社成立于 1977 年 4 月 1 日，前身为住友林业株式会社内部设立的「スミリン緑化株式会社」，资本金 3,000 万日元。1982 年正式承接住友林业旗下的绿化营业业务，1984 年更名为现名「住友林業緑化株式会社」，资本金增至 1 亿日元；1991 年增资至 2 亿日元，由住友林业株式会社 100% 出资。1993 年设立直营施工子公司スミリンエクステリア，2001 年开始面向住友林业自建住宅客户的爱・绿色庭园维护业务，2010 年将总部迁至现址东京都中野区。2017 年迎来公司成立 40 周年，2018 年与スミリン農産工業株式会社合并，并将业务版图延伸至土壤改良剂、培养土等农产领域。
事业架构
公司围绕住宅、城市、农产三个核心场景展开业务，下设住宅緑化事业部、环境緑化事业部、資材事业部及資材事业部（农产部门）四个业务板块。住宅緑化事业部负责与住友林业住宅事业本部协同，为「住友林业的家」提供外观绿植设计与外构空间营造，并承接大规模分譲緑化项目的统一景观规划与庭园后期维护。环境緑化事业部面向企业、政府及自治体客户，提供从咨询、设计、施工到维护的一体化中大规模空间绿化服务，承担大阪府立花の文化园、大阪府民之森、蜻蛉池公园等多处公园与緑地的指定管理业务。資材事业部承担各类造园资材与树木的采购销售，运营从北海道到九州的全国供给网络；农产部门负责土壤改良剂与培养土的研发、生产与销售，下辖飞岛工厂与新城工厂两处生产基地。
核心品牌与项目
公司面向生态与企业价值两条主线，持续输出可识别的项目品牌。在生物多样性领域，主打「Harmonic Plants（ハーモニックプランツ）」——一种兼顾景观效果与本地生态的植物选择方案，2012 年获得 Good Design 奖；2018 年，「Forest Garden 秦野」戸建住宅団地成为日本首个获得 ABINC 认证的住宅项目。在減碳物流领域，主推「緑配便」モーダルシフト服务，与 JR 货物、日本通运、川崎汽船合作，组合铁路、海运等低运能的配送方式以降低运输阶段碳排放。在企业緑地价值领域，面向企业客户提供「みどり价值」可视化咨询服务，支援其 ESG 披露与可持续品牌建设。
资质、认证与规模
公司在工程资质、技术人员与品质管理体系上具备完整储备。建筑营业资质涵盖国土交通大臣许可（特-7）第 7735 号（土木工事业、造园艺工事业、とび・土工工事业），并在东京、大阪设有建筑士事务所。截至 2026 年 1 月，拥有監理技術者（造园・土木）212 名、1 级造园施设管理技士 221 名、1 级土木施设管理技士 140 名、树木医 13 名等技术骨干，员工总数 746 名。品质与环境管理方面，2002 年取得 ISO 環境管理体系 与 ISO 品質管理体系 双认证，2018、2019 年陆续将 ISO 品質管理体系升级覆盖至全部环境緑化与农产事业。2025 年 12 月期合并销售额 263 亿日元。原创作品多次获奖：2012 年 Harmonic Plants 获 Good Design 奖，2018 年日本芝「Burning Field」油含有土的植物修复技术同获 Good Design 奖，2023、2024 年连续凭原创 Wood Deck 与「Line Fit」获得 Wood Design 奖与 Kids Design 奖。
指定管理与国际业务
公司近年业务重心持续向公园运营管理与海外市场拓展。2016 年起承接大阪府立花の文化园指定管理业务，2022 年新增大阪府民之森，2023 年再添蜻蛉池公园，形成覆盖都市公园、自然公园与企业緑地的多层次管理体系。国际业务方面，2019 年起在洛杉矶开展景观资材贸易，2022 年正式进入澳大利亚开展景观事业，逐步将日本积累的绿化工程经验向海外市场输出。
Historical Evolution
Sumirin Forestry Landscaping Co., Ltd. was founded on 1 April 1977 as “Sumirin Ryokka Co., Ltd.”, a green-spaces subsidiary of Sumitomo Forestry Co., Ltd., with initial capital of 30 million yen. In 1982 the company took over the landscaping sales work of its parent, and in 1984 adopted its present name “Sumitomo Forestry Landscaping Co., Ltd.” while raising capital to 100 million yen; in 1991 capital was raised again to 200 million yen, with 100% of shares held by Sumitomo Forestry. A directly-operated construction subsidiary, Sumirin Exterior Co., Ltd., was established in 1993. The post-construction garden-care service for Sumitomo Forestry homeowners, called Ai Green, began in 2001. The head office moved to its current location in Nakano-ku, Tokyo in 2010. In 2017 the company marked its 40th anniversary; in 2018 it merged with Sumirin Nousan Kogyo Co., Ltd., bringing soil amendments and culture soils into the group portfolio.
Business Structure
The company operates through four business divisions — Housing Greenery, Environmental Greenery, Materials, and Materials (Agricultural) — serving housing, urban and agricultural customers. The Housing Greenery Division works with the Sumitomo Forestry Housing Business Headquarters to design plantings and exterior spaces for “Sumitomo Forestry Homes”, and handles large-scale subdivision landscaping with unified landscape design and after-care. The Environmental Greenery Division provides end-to-end consultation, design, construction and after-care for corporate, governmental and municipal clients, including designated management of Osaka Prefectural Hanano Bunka-en, Osaka Prefectural Forest and Tonboike Park. The Materials Division procures and sells landscaping materials and trees through a national supply network covering Hokkaido to Kyushu; the Agricultural Division develops, produces and sells soil amendments and culture soils at the Tobishima Plant and the Shinshiro Plant.
Flagship Brands and Projects
The company maintains a portfolio of identifiable programme brands across ecology and corporate value. In biodiversity, the lead programme is “Harmonic Plants”, a plant-selection methodology that balances landscape aesthetics with local ecology, which won the Good Design Award in 2012; in 2018 the Forest Garden Hadno detached-housing community became the first residential project in Japan to receive ABINC certification. In low-carbon transport, the Midori-haibin modal-shift programme combines rail, sea and other low-emission modes in partnership with JR Freight, Nippon Express and Kawasaki Kisen to reduce transport-stage CO2. In corporate greenery value, the Midori Value service supports corporate clients in visualizing their greenery assets for ESG disclosure and sustainable branding.
Qualifications, Certifications and Scale
The company maintains a full set of construction qualifications, technical staff and quality-management systems. Construction permits cover the Ministry of Land, Infrastructure, Transport and Tourism licence (Toku-7) No. 7735 for civil engineering, landscaping and scaffolding/civil works, with registered architect offices in Tokyo and Osaka. As of 1 January 2026 the company employs 746 staff, including 212 Chief Managing Engineers (landscape and civil), 221 first-class Landscape Construction Management Engineers, 140 first-class Civil Construction Management Engineers, and 13 tree doctors. Quality and environmental management: ISO environmental management and ISO quality management certifications were obtained in 2002, with the ISO quality management certification extended in 2018 and 2019 to cover environmental greenery and agricultural operations respectively. Consolidated sales for the fiscal year ending December 2025 were 26.3 billion yen. The company’s original work has been recognised repeatedly: Harmonic Plants won the Good Design Award in 2012; a Burning-Field phytoremediation technique for oil-contaminated soil using Japanese turf received the Good Design Award in 2018; an original Wood Deck and the “Line Fit” product received the Wood Design Award in 2023 and 2024, and the Kids Design Award in 2023.
Designated Management and International Operations
Recent business emphasis has been on park operation and overseas market expansion. Designated management of Osaka Prefectural Hanano Bunka-en began in 2016, with Osaka Prefectural Forest added in 2022 and Tonboike Park in 2023, building a multi-tier portfolio spanning urban parks, natural parks and corporate grounds. Internationally, the company began landscape-materials trade in 2019 from a Los Angeles base, and in 2022 entered the Australian market to deliver landscape works, gradually extending the Japanese landscaping-engineering know-how overseas.
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