What （株）ベルテックス does

株式会社ベルテックス (Vertex Co., Ltd.) is a privately held Japanese real estate company established in February 2012 and headquartered in Yokosuka, Kanagawa Prefecture, operating as the dedicated property arm of the Ierista Group (founded 1976). The company focuses on three integrated activities: developing and selling new-built residential properties under the Ber Garden (ベルガーデン) Series, directly purchasing existing properties from individual sellers (with settlement in as little as 48 hours), and offering the Rent Home (レントホーム) leaseback service that allows sellers to remain as tenants post-sale. Ber Garden Series homes meet ZEH (Net Zero Energy House) standards with insulation performance grade 5 or higher and primary energy consumption grade 6, marketed as comfortable, energy-efficient housing at appropriate price points. The underlying technology centers on high-insulation, high-airtightness construction and efficient energy-saving equipment rather than software or data platforms.

The company serves individual home buyers, families, and property sellers across the Yokosuka, Yokohama, and Shonan areas of Kanagawa Prefecture, with purchase coverage also extending to Miura City, Hayama, Zushi, Yamato, Ayase, and Hiratsuka. Distribution is direct-to-consumer through the company's own website (u-vertex.jp), partner listing portal (usui-home.co.jp), and a physical consultation office in Yokosuka. Vertex generates revenue through four streams: new property development sales under the Ber Garden brand, direct property resale purchases, buy-sell brokerage commissions, and recurring rental mediation/management fees on leaseback and rental units. The business model is capital-intensive — the company funds direct property purchases using group resources and relationships with major financial institutions (Bank of Yokohama, MUFG Bank, Mizuho Bank, Resona Bank, and Kanagawa/Shizuoka regional banks). Vertex held a Kanagawa Prefecture construction business license (No. 28166) and reported standalone FY2020 revenue of 7.287 billion yen against group-wide revenue of 13.1 billion yen, with over 1,500 properties cumulatively acquired since founding.

Name

（株）ベルテックス

Legal name

株式会社ベルテックス

Website

https://u-vertex.jp

Company type

Private

Founded year

2012

Operating status

Operating

Headcount range

11–50 employees

Short description

株式会社ベルテックス is a Kanagawa-based privately held real estate firm within the Ierista Group that develops ZEH-standard new-built homes under the Ber Garden Series, directly purchases properties from individual sellers, and offers a Rent Home leaseback service across the Yokosuka, Yokohama, and Shonan areas.

Ownership category

akta.pro rank

Product category

Residential Real Estate Services

NAICS

New Housing For-Sale Builders (236117), Real Estate Property Managers (53131)

SIC

General Bldg Contractors - Residential Bldgs (1520), Land Subdividers & Developers (No Cemeteries) (6552), Real Estate Operators (No Developers) & Lessors (6510)

akta.pro primary industry

New Development / Declarant Transition Management (BPAJAHAK)

akta.pro secondary industry

Multifamily Apartment Property Management (BPAJAFAA)

Keywords

• Residential real estate
• New construction homes
• Property purchase services
• Leaseback services
• Energy efficient housing

Headquarters

HQ city

Yokosuka City

HQ country

Japan

HQ region

Asia

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

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

Revenue model

1. 不動産分譲 (Real Estate Development Sales): Sale of newly constructed residential properties through the ベルガーデン series brand. The company develops and sells single-family homes and condominiums in the Yokosuka, Yokohama, and Shonan areas.
2. 不動産買取 (Real Estate Purchase): Direct purchase of properties from sellers, generating revenue through resale. The company has achieved approximately 200+ annual purchase transactions and over 1,500 properties acquired since 2012.
3. 売買仲介 (Buy-Sell Mediation): Brokerage services for property transactions between buyers and sellers.
4. 賃貸仲介・管理 (Rental Mediation/Management): Rental property brokerage and management services.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

株式会社ベルテックス (Vertex Co., Ltd.) develops and sells the Ber Garden Series (ベルガーデンシリーズ) of ZEH-standard energy-efficient new-construction residential homes, while also purchasing existing properties directly from owners for resale. The company provides a Rent Home (レントホーム) leaseback service that allows sellers to remain in their homes as tenants, along with buy-sell brokerage and rental property management services. Operations focus on the Yokosuka, Yokohama, and Shonan areas of Kanagawa Prefecture.

Product overview

株式会社ベルテックス operates as a real estate company within the Ierista Group, offering a portfolio of property services centered around its ベルガーデンシリーズ (Ber Garden Series) residential housing brand. The company's core offerings include new built homes and condominiums under the Ber Garden brand, direct real estate purchase services (不動産買取), and the レントホーム (Rent Home) leaseback service. Ber Garden Series homes are positioned as comfortable, high-quality, and reasonably priced energy-efficient housing meeting ZEH standards. The company serves the Yokosuka, Yokohama, and Shonan areas in Kanagawa Prefecture with property sales, purchases, and related real estate services.

Differentiator

Problem solved

Functional benefit

Brands

• ベルガーデンシリーズ: 快適高品質×適正価格をコンセプトとした、分譲住宅シリーズ。住む人の快適性、暮らしデザイン、省エネ性能、適正価格にこだわりを持つ。

Products and services

• ベルガーデンシリーズ (Ber Garden Series) A residential housing brand offering newly built single-family homes and condominiums in the Yokosuka, Yokohama, and Shonan areas. The series emphasizes energy-efficient housing with ZEH-level insulation (grade 5+), primary energy consumption grade 6, comfortable floor plans with abundant storage, and reasonably priced quality homes targeting individual home buyers and families.
• 不動産買取サービス (Real Estate Purchase Service) Direct purchase service where Vertex buys properties from owners, offering quick cash settlement (as fast as 48 hours), no real estate intermediary fees, ability to sell properties without advertising to neighbors, and no requirement for cleaning or repairs regardless of property condition.
• レントホーム (Rent Home) - Leaseback Service Leaseback service allowing property owners to sell their home to Vertex while continuing to live there as a tenant. Includes standard leaseback, senior relocation support, limited-term leaseback (6 months to 2 years), commercial property use options, and the First Seven Plan with fast 7-day cash settlement (150,000 yen fee, tax-inclusive).
• 販売物件 (Property Sales Listings) Sales listings of newly built homes, used houses, condominiums, and land in the Yokosuka, Miura, Yokohama, and Shonan areas, with detailed property information, pricing (typically 2,080,000 to 6,380,000 yen), and location details available on the company website.
• 無料査定サービス (Free Property Appraisal Service) Two-tier property valuation service: simple desktop appraisal (簡易査定) based on public land prices and comparable sales data, and detailed on-site inspection appraisal (訪問査定) for accurate market pricing. Both services are provided free of charge.
• 省エネ住宅 (Energy-Saving Housing / ZEH Homes) ZEH-level energy-efficient homes meeting insulation performance grade 5 and primary energy consumption grade 6 standards. Features high insulation, airtightness, and efficient equipment for reduced utility costs and year-round comfort, qualifying for housing loan tax deduction benefits.

Quantifiable outcome

• Annual property purchase transactions exceeding 200 cases
• +2 more outcomes

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature2 records

Partnerships

Five partnerships are on record, tiered core and minor.

• 株式会社イエリスタホールディングスcoreOthers · 1 February 2012Parent company of the Ierista Group, which Vertex Co., Ltd. is a member of. The group encompasses real estate, construction, insurance, elderly care, and childcare services.
• ウスイホーム株式会社coreOthersRelated company within the Ierista Group, operating in the real estate and housing sector in the Kanagawa area.
• 株式会社ハートフルホームcoreOthersRelated company within the Ierista Group, providing housing and real estate services.
• ウスイハウジング株式会社minorOthersRelated company within the Ierista Group.
• 神奈川賃貸保証株式会社minorOthersRelated company within the Ierista Group, providing rental guarantee services.

Scale indicators6 records

Recent moves7 records

Expansion highlights4 records

Direct peers

• ハウスドゥ（HouseDo Holdings）: HouseDo operates a nationwide franchise network specializing in immediate property purchase and resale — nearly identical business model to Vertex's 即時買取 service. Both target motivated sellers seeking fast, confidential transactions without intermediary fees, and both franchise the model across regional territories.
• センチュリー21・ジャパン（Century 21 Japan）: Century 21 Japan is a franchise real estate brokerage network serving the same buy/sell intermediation market as Vertex. Many franchisees also handle direct property purchases, directly competing for the same Kanagawa sellers and buyers.
• オープンハウスグループ（Open House Group）: Open House is a major Tokyo-focused residential developer and broker of new construction single-family homes and condominiums. It competes head-on with Vertex's ベルガーデン series in Greater Tokyo, including Yokohama, using similar direct-sales and small-lot subdivision strategies.

Broad incumbents

• 積水ハウス（Sekisui House）: Japan's largest homebuilder, offering ZEH-grade custom and spec housing nationwide including Yokohama/Shonan. Competes with Vertex on energy-efficient single-family construction but with vastly greater scale, brand recognition, and capital base.
• 住友不動産（Sumitomo Realty & Development）: Major Japanese real estate developer active in new condominium sales (including Shonan/Yokohama) and brokerage. Competes with Vertex on new residential supply and also operates investment/inventory real estate broadly.
• 大和ハウス工業（Daiwa House Industry）: One of Japan's largest diversified homebuilders and real estate developers with national coverage. Overlaps with Vertex on new residential construction and condominium development in Kanagawa, with broader portfolio (commercial, logistics, environmental energy).

Regional players

• 東急リバブル（Tokyu Livable）: Tokyu-affiliated real estate brokerage and developer focused on Shonan and Greater Tokyo, including property purchase and resale. Highly comparable to Vertex's geography and immediate-purchase service positioning in the same Yokohama/Shonan submarkets.

Emerging players

• リバース（Reverse Co., Ltd.）: Reverse specializes in direct purchase of inherited and used condominiums across Japan, very similar to Vertex's 即時買取 model. Niche overlap in the same motivated-seller segment, though operating nationally rather than regionally.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/%EF%BC%88%E6%A0%AA%EF%BC%89%E3%83%99%E3%83%AB%E3%83%86%E3%83%83%E3%82%AF%E3%82%B9

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 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）ベルテックス