株式会社フィルコーポレーション

What 株式会社フィルコーポレーション does

Fill Corporation Co., Ltd. (株式会社フィルコーポレーション) is a privately held Japanese company founded on June 16, 2005, headquartered in Chiyoda-ku, Tokyo, with a paid-in capital of ¥50 million and 5 employees. The company operates two distinct business divisions: an ESG Promotion business focused on solar power generation solutions (self-consumption systems, third-party-owned onsite PPA branded F-PPA, offsite self-delivery PPA branded F-PAS, subdivided "Fill Solar Park," agricultural solar sharing, and solar carport systems) and a Construction Temporary Materials business built around proprietary photocatalytic-coated flat enclosure panels (W ECO Flat Panel) and dedicated maintenance machinery (Flat Panel Laminator and Sheet Peeler).

Core technology centers on a patented molecular-bonded titania-silica photocatalyst branded "Rinkou," which is registered under NETIS (KT-120095-A) and protected by multiple Japanese patents plus a US patent (US 7,175,825 B2). The company monetizes through hardware sales (panels, laminators, photocatalyst coatings, LED lighting rentals), engineering and installation services, 20-year fixed-price Feed-in Tariff (FIT) revenue via subdivided solar parks, and on-site PPA electricity sales contracts. The customer base is exclusively B2B — primarily Japanese corporations across manufacturing, trading, real estate/construction, leasing, safety equipment, and tire distribution — supplemented by individuals purchasing subdivided solar units.

Go-to-market is sales-led with salaried sales representatives handling inbound inquiries via product-specific web forms, conducting site visits, simulations, and proposals; marketing support is limited to the company website (fillcorporation.co.jp), a blog (blog.fillcorporation.co.jp), and recruitment listings. With offices in Tokyo, Fukuoka (regional HQ), and Kagoshima, Fill Corporation maintains national coverage despite a minimal headcount, leaning on a group affiliate (株式会社 environment product company) that holds a Fukuoka construction business license for specialized construction work.

Name

株式会社フィルコーポレーション

Legal name

株式会社フィルコーポレーション

Website

https://fillcorporation.co.jp

Company type

Private

Founded year

2005

Operating status

Operating

Headcount range

1–10 employees

Short description

Fill Corporation Co., Ltd. is a privately held Japanese firm (est. 2005, Tokyo HQ) that sells solar power systems — including self-consumption, on-site PPA (F-PPA), offsite PPA (F-PAS), subdivided solar parks, and solar sharing — alongside patented photocatalytic-coated construction enclosure panels and panel-maintenance equipment, serving Japanese enterprises and individual buyers.

Ownership category

akta.pro rank

Product category

Solar Power Systems and Renewable Energy Solutions

NAICS

Solar Electric Power Generation (221114)

SIC

Unsupported Plastics Film & Sheet (3081)

akta.pro primary industry

Solar EPC & Construction (Utility-Scale, Rooftop, Balance of System) (EUAMABAB)

Keywords

• Solar power systems
• Photocatalyst coatings
• Construction panels
• Third-party PPA
• Renewable energy solutions

Headquarters

HQ city

Tokyo

HQ country

Japan

HQ region

Asia

Offices5 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. 太陽光関連事業: 自家消費·自己託送·分譲型太陽光発電·PPA等の太陽光関連商品的的销售·設置·メンテナンスサービス。20年間の固定価格買取制度（FIT）を活用した収益モデル。
2. 建設仮設資材事業: Wエコフラットパネル·フラットパネルラミネーター·シートピーラー等の販売·レンタル·施工。LED照明のレンタル事業を含む。
3. 光触媒関連製品: 光触媒コーディングパネル·防汚コート剤の卸販売·施工販売。自動車ボディコート剂等の環境配慮型商品的的销售。
4. 自家消費·PPAサービス: 企業所有の屋根·敷地に太陽光発電システムを設置するオンサイトPPAモデル。第3社所有型オンサイトPPA（F-PPA）を通じた電力販売契約。

Go-to-market motion1 record

Distribution channels3 records

Marketing channels3 records

Core offering

Fill Corporation designs, manufactures, and sells environmental and construction products under two pillars: (1) ESG Promotion — solar power generation systems sold, installed, and serviced under multiple models (self-consumption, offsite self-consignment F-PAS, third-party-owned on-site PPA/F-PPA, subdivided Fill Solar Park, agricultural solar sharing, solar carports); and (2) Construction Temporary Materials — the W Eco Flat Panel enclosure (a photocatalyst-coated reusable temporary construction panel) along with dedicated maintenance machinery (Flat Panel Laminator and Sheet Peeler). The company owns proprietary photocatalyst (titania-silica) IP and patents used as the differentiating material across its product line.

Product overview

Fill Corporation Co., Ltd. operates two main business divisions: ESG Promotion and Construction Temporary Materials. The ESG division encompasses solar power generation products including self-consumption on-site PPA systems (自家消費型), third-party-owned on-site PPA (PPA), offsite self-delivery PPA (自己託送型 / F-PAS), subdivided solar power parks (フィルソーラーパーク), agricultural solar sharing (営農型), and solar carport systems — all targeting corporate and individual buyers seeking renewable energy adoption and cost reduction. The Construction Temporary Materials division centers on the W ECO Flat Panel (仮囲い), a reusable temporary construction enclosure with photocatalytic coating, protected by specialized laminate repair technology; it is paired with the Flat Panel Laminator (flat panel maintenance machine) and Flat Panel Sheet Peeler for in-house panel restoration. The company also develops titanium-silica photocatalyst technology (凛光) with multiple patents as a foundational material across its product line.

Differentiator

Problem solved

Functional benefit

Brands

• ecoideas: 地球環境に配慮した商品のブランドメッセージ/スローガンとして発信されている環境理念ブランド。
• フィルソーラーパーク
• F-PAS
• F-PPA
• 凛光
• Wエコフラットパネル
• 自家消費型太陽光発電システム

Products and services

• Self-consumption Solar Power Generation System (自家消費型太陽光発電システム) Solar power generation system installed on the customer's owned or leased building roof or land; the generated electricity is consumed on-site by the facility owner. Enables electricity cost reduction (peak-cut, demand charge, basic charge), CO2 reduction, RE100/EP100 compliance support, and emergency backup power during outages.
• Self-consignment Solar Power Generation System — F-PAS (自己託送型太陽光発電システム) Offsite solar PPA model where Fill Corporation installs solar panels on the customer's owned distant land and transmits electricity via the power grid to the customer's facility. Enables companies without available roof or land to utilize renewable energy. Includes land acquisition support, grid application assistance, supply-demand management, imbalance guarantees, and 20-year maintenance.
• Agricultural Solar Sharing System (営農型太陽光発電システム / ソーラーシェアリング) Agricultural solar sharing system in which pillars are installed on farmland to place solar panels in the upper airspace, sharing sunlight between agricultural production and power generation to enable nature-harmonious energy generation.
• PPA — Third-party-owned On-site PPA (第3社所有型オンサイトPPA / F-PPA) Third-party-owned on-site PPA where Fill Corporation installs, operates, and maintains a solar power generation system on the customer's building roof or premises at no initial cost; the customer purchases the generated electricity. Targets buildings less than 20 years old with roof area exceeding 5,000 m² and no surrounding shading.
• Subdivided Solar Power System — Fill Solar Park (分譲型太陽光発電システム フィルソーラーパーク) Subdivided solar power generation system in which Fill Corporation installs solar panels on land suitable for solar power generation, divided into approximately 50 kW plots, and sold to individual or corporate buyers. Package includes feed-in tariff management, land, insurance, financing, and maintenance for 20 years.
• Solar-Powered Carport System (太陽光発電搭載カーポート) Wind-resistant solar carport system designed for residential properties where rooftop solar installation is not feasible; capable of mounting 2 kW to 4 kW photovoltaic modules, available in configurations for 2 or 3 vehicles.
• W Eco Flat Panel (Wエコフラットパネル / Temporary Enclosure) Construction-site temporary enclosure panel with practical new model registration No. 3181244, featuring photocatalytic coating for air purification and self-cleaning, specialized laminate protection for easy repair, weather resistance, high opacity, reusable print surfaces, and sound insulation. Used at building, residential, and station construction sites.
• Flat Panel Laminator (フラットパネルラミネーター) Purpose-built laminating machine for repairing temporary enclosure steel plates in-house. Dimensions L7300mm × W1250mm × H1500mm, 220V power, 1.5 kWh consumption; processes approximately 87 panels per hour; reduces per-panel maintenance cost from approximately 1,000–1,500 yen to 300–500 yen.
• Flat Panel Sheet Peeler (フラットパネルシートピーラー) Automated machine that peels laminated sheets from panels; efficiently processes approximately 20 sheets per hour. Dimensions L5000mm × W1300mm × H1200mm, 3.5 kWh power.
• Photocatalyst — Rinkou 凛光 (Titania-silica Photocatalyst) Photocatalytic titanium-silica coating technology (brand: 凛光/Rinkou) activated by sunlight or fluorescent light to produce oxidation-reduction reactions that decompose organic compounds, bacteria, pollutants, and NOx into harmless water and carbon dioxide. Features super-hydrophilicity (near-0° contact angle), rainwater self-cleaning, and air-purification capability equivalent to 12 poplar trees per 100 sound-insulating panels (156 m²). NETIS registered: KT-120095-A. Sold as the underlying material applied to construction panels and other products.

Quantifiable outcome

• 仮囲い鋼板メンテナンスコスト削減：1枚あたり約1000～1500円→約300～500円
• +4 more outcomes

Named customers8 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

One partnership is on record.

• 株式会社エンバイロメント·プロダクト·カンパニーcoreOthers · 16 June 2005グループ会社として特定建設業の許可（建築工事業）を受けている。福岡県知事許可(特-24)第107073号を保有する。

Scale indicators2 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• SymEnergy Co., Ltd. Japanese solar power IPP/PPA developer offering self-consumption, off-site PPA, and on-site PPA to corporate and municipal customers—directly comparable to Fill Corp's multi-model solar offerings.
• EcoStyle Co., Ltd. Japanese renewable energy company focused on rooftop PPA and solar self-consumption for corporates, with similar B2B sales-led motion and emphasis on electricity-cost reduction—closely aligned with Fill Corp's flagship products.
• RENOVA, Inc. Listed Japanese renewable energy IPP developing solar, wind, and biomass power projects across Japan, including on-site PPA—comparable multi-technology renewable business model with corporate PPA focus.
• Sustech, Inc. (サステック): Japanese renewable energy company operating solar PPA and power generation services for corporate customers—comparable in size, focus, and PPA-driven business model to Fill Corp.

Broad incumbents

• Kyocera Corporation: Global Japanese electronics and solar manufacturer producing PV modules and offering residential/commercial solar EPC—a broader incumbent with much deeper capital competing across Fill Corp's rooftop and small-commercial solar segments.
• Panasonic Corporation (Solar/Energy Solutions): Global Japanese electronics manufacturer with solar PV module production and residential/commercial solar EPC services—a broad incumbent with extensive R&D and brand recognition competing in the same Japanese solar market.
• NTT Anode Energy Corporation: Major Japanese solar and renewable energy operator (subsidiary of NTT Group) running large-scale solar IPP and PPA portfolios—a much larger incumbent competing in the same on-site and off-site PPA market as Fill Corp.
• Sharp Energy Solutions Corporation: Japanese solar PV manufacturer and EPC arm of Sharp, offering residential and utility-scale solar systems—directly competing with Fill Corp's self-consumption and PPA solar business but at vastly greater scale.
• Mitsubishi Electric Corporation (Photovoltaic Systems): Large Japanese conglomerate offering solar PV modules and system solutions for residential, commercial, and utility applications—a broad incumbent whose solar EPC and panel business overlaps with Fill Corp's rooftop solar offerings.

Emerging players

• TOTO Ltd. Japanese ceramics manufacturer with photocatalyst product lines (Hydrotect) for tiles and building materials—comparable through its titania-based photocatalyst technology for construction-surface applications, an adjacent niche to Fill Corp's photocatalyst-coated panels.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/%E6%A0%AA%E5%BC%8F%E4%BC%9A%E7%A4%BE%E3%83%95%E3%82%A3%E3%83%AB%E3%82%B3%E3%83%BC%E3%83%9D%E3%83%AC%E3%83%BC%E3%82%B7%E3%83%A7%E3%83%B3

Compliance9 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries1 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 株式会社フィルコーポレーション