What 株式会社リバー does

株式会社リバー, operating as リバーホーム (River Home), is a boutique renovation design-and-build firm founded on December 27, 2005, headquartered in Otsu, Shiga Prefecture, with a secondary showroom office in Kyoto. The company specializes in vintage-style residential and commercial interior renovation that blends traditional Japanese aesthetics (e.g., Shōwa-era nostalgia, Japanesque/Taishō motifs, tokonoma alcoves, William Morris shoji screens) with Western design elements such as parquet and herringbone flooring, KOHLER fixtures, Italian tiles, imported paints, and custom millwork. Its core service tiers are 1point Renovation (single-space upgrades), Full Renovation (structural through finish overhauls), Property Search + Renovation, and Property Search + New Construction, supplemented by full furniture and décor coordination, commercial store/office design-build, and a real estate brokerage arm that sells company-held properties without intermediary fees. The firm has no proprietary software, no digital product, and no API/SDK surface; its principal physical assets are four themed model houses — Japanesque, Nostalgic (Shōwa), Paris Apartment, and American Mid-Century — located across its Shiga and Kyoto sites, which function simultaneously as marketing showrooms, workshop venues, and design reference points for prospective clients.

The business runs on a project-based professional services model. Project sizes are typically communicated to prospects in bands ranging from ~¥1M to ¥10M+ (10 million yen and above), with workshops priced at ¥2,000–¥4,000 per session. GTM is community-led and direct-to-consumer: the firm runs monthly DIY craft workshops, operates a "Kissa Madaten" café-style consultation format, accepts inquiries via website forms, phone, and Instagram DMs, and closes through model house visits and in-office consultations. Customers are predominantly individual homeowners in the Shiga–Kyoto Kansai corridor plus a steady stream of small-business owners (restaurants, bars, beauty salons, photo studios, retail) commissioning brand-aligned commercial interiors. The company is privately held with ¥10M registered capital, no external equity, no parent, no subsidiaries, and no disclosed revenue; its scale signals (7–11 employees, two physical offices) point to a deliberately small, founder-led lifestyle-renovation studio rather than a scaling operator.

Revenue is generated through three streams: (1) Renovation Design and Construction for residential and commercial spaces (professional services, multi-year engagement horizon), (2) Store and Commercial Space Design (professional services), and (3) Land and Building Sales and Brokerage (one-time transaction revenue), with property listings enabling some transactions to bypass third-party brokerage fees. Founder Junichi Sakata (坂田純一) leads a six-person named team covering design (Ken Matsuo), real estate development (Hiroyuki Kagata), planning (Tomoko Hayashi), construction management (Tetsuji Tsuji), and accounting/general affairs (Masayo Yokota). Marketing relies almost entirely on organic social (Instagram accounts @riverhome0356 and @river_event, Facebook) and event-driven engagement rather than paid acquisition. The operating geography is explicitly constrained: the primary service area is Kyoto City and the Konan area of Shiga Prefecture, with projects outside this area handled only by separate consultation.

Name

株式会社リバー

Legal name

株式会社 リバー

Website

https://the-river.jp

Company type

Private

Founded year

2005

Operating status

Operating

Headcount range

11–50 employees

Short description

株式会社リバー (River Home) is a boutique Shiga/Kyoto renovation firm offering vintage-style full renovations, 1-point upgrades, and property-search-plus-renovation services to residential homeowners and small commercial clients in the Kansai region. It differentiates on curated imported materials and four themed model-house showrooms, delivered by a 7–11 person founder-led team.

Ownership category

akta.pro rank

Product category

Home Renovation Services

NAICS

Residential Remodelers (236118)

SIC

General Bldg Contractors - Residential Bldgs (1520)

akta.pro primary industry

Residential Design-Build & Renovation-Integrated Builders (IMAFABAE)

Keywords

• Residential renovation services
• Commercial interior design
• Property search brokerage
• Custom home construction
• Furniture and decor coordination

Headquarters

HQ city

Ōtsu (大津市)

HQ country

Japan

HQ region

Asia

Offices2 records

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Supply Chain, Operations, Marketing or Sales, Infrastructure

Revenue model

1. Renovation Design and Construction: Full-service renovation for residential (single-family homes and condominiums) and commercial spaces (stores, offices, beauty salons, restaurants). Services include design, material sourcing, and construction management. Pricing ranges indicated in inquiry form as ~1M yen to 10M+ yen depending on scope.
2. Store and Commercial Space Design: Specialized renovation and design services for commercial establishments including restaurants, bars, beauty salons, photo studios, and retail spaces.
3. Land and Building Sales and Brokerage: Property sales and intermediary services for land and buildings. The company acts as seller for some properties (eliminating brokerage fees for customers), and facilitates property search assistance for renovation or new construction customers.

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels5 records

Core offering

株式会社リバー (River Home) is a renovation and design firm based in Shiga and Kyoto, Japan. The company provides full renovation, single-point (1point) renovation, new construction, property search paired with renovation, commercial store/office design, real estate sales and brokerage, and full furniture/décor coordination services for residential and commercial clients. It also operates four themed model houses and runs monthly DIY interior craft workshops as community engagement and lead-generation activities.

Product overview

River Home is a renovation-focused company offering a suite of design and construction services for residential and commercial clients in Shiga and Kyoto prefectures. The core portfolio is organized around three primary service tiers: (1) 1point リノベーション — targeted single-space upgrades (kitchens, bathrooms, doors, wallpaper); (2) フルリノベーション — comprehensive full-property renovation covering structural through finish work; and (3) 物件探し～リノベーション / 物件探し～新房 — integrated property search paired with renovation or new construction. Supporting services include 家具・小物一式プロデュース (full furniture and décor coordination), 店舗設計・施工 (commercial design and construction), and 土地・建物の売買・仲介 plus 不動産活用の企画・開発 (real estate brokerage and development). The company also operates four themed model houses — ジャポネスクに暮らす, ノスタルジックに暮らす, パリのアパートメントに暮らす, and アメリカンミッドセンチュリーに暮らす — which serve as both showcase spaces and reference designs for prospective clients. The business operates from two offices: Shiga (headquarters) and Kyoto (model house and showroom).

Differentiator

Problem solved

Functional benefit

Products and services

• Full Renovation (フルリノベーション) Complete property renovation service covering the entire structure, from structural modifications to finish work. Includes full-apartment and full-house renovation of residential properties as well as commercial spaces. Targeted at homeowners and property investors seeking comprehensive overhauls.
• 1point Renovation (1point リノベーション) Targeted single-space or single-item renovation service focusing on specific areas such as a kitchen, bathroom, washroom, toilet, walls, doors, or lighting. Designed for clients seeking focused upgrades without a full renovation.
• Property Search + Renovation (物件探し～リノベーション) Combined property search and renovation service, guiding clients from property identification through to completed renovation. Supports both resale properties requiring renovation and new-to-market properties.
• Property Search + New Construction (物件探し～新築) Property search and new construction coordination service, helping clients find suitable land or buildings for new-build projects in the Shiga and Kyoto areas.
• New Construction (新築) New construction service for residential and commercial buildings, producing custom-built properties on client-owned land or purchased lots. Includes design, construction management, and finish coordination.
• Commercial Store/Office Design and Construction (店舗設計・施工) Commercial store and office space design and construction service. Covers the full process from layout planning and design through to finished construction for retail, dining, and hospitality venues.
• Land and Building Sales and Brokerage (土地・建物の売買・仲介) Real estate sales and brokerage service for land and buildings. Includes the sale of company-owned lots and managed properties, with no intermediary brokerage fee for River Home-listed properties.
• Furniture and Décor Production (家具・小物一式プロデュース) Full-coordinate furniture and décor procurement service, providing clients with curated furniture, lighting, textiles, and accessories to complement their renovated spaces. Offered as part of the renovation service package.

Named customers7 records

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Scale indicators3 records

Recent moves8 records

Expansion highlights5 records

Market position

Strengths4 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Instagraminstagram.com/riverhome0356
• LinkedInlinkedin.com/company/%E6%A0%AA%E5%BC%8F%E4%BC%9A%E7%A4%BE%E3%83%AA%E3%83%90%E3%83%BC

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 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 株式会社リバー