What Oak Capital does

Oak Capital, operating under the legal name UNIVA Oak Holdings Limited (株式会社UNIVA・Oakホールディングス), is a Tokyo-listed (TYO:3113) diversified Japanese holding company headquartered in Akasaka with a headcount of 11-50 employees. Founded in 1918 per firmographic records, the entity now operates as a holding-company platform coordinating ten operating subsidiaries under a stated 'Synergy Circle' strategy that seeks cross-segment collaboration. The portfolio spans four distinct functional clusters: financial services (UNIVA Securities, a boutique M&A and fundraising advisory), consumer products and brand commerce (UNIVA Fusion marketing the Kombucha Lens beauty line, plus a global trading business for pharmaceuticals, health foods, and beauty products), infrastructure and sustainability (North Energy supplying solar generation and self-consumption solar equipment, Re-Dining for restaurant regeneration), and content/media/payments (UNIVA Jayron digital marketing tools for SEO/MEO/DFO/EFO, FM Karuizawa community radio, UNIVA RBL professional 3x3 basketball league, and UNIVA Paycast payment platform). UNIVA Rhizoma provides shared back-office services to the group.

The company makes money through a heterogeneous mix of revenue mechanics: professional services fees from securities advisory and consulting, product/one-time sales of beauty items and solar hardware, transaction and platform fees in trading and payments, and advertising/content revenue from radio and the basketball league. Pricing is not publicly disclosed. Go-to-market is primarily domestic Japan for advisory, beauty, solar, media, and sports, with global reach claimed only for the trading subsidiary. Customer segments range from enterprise (M&A advisory, B2B solar, global trading) to SMB and consumers (Kombucha Lens, FM Karuizawa, RBL events).

Financial trajectory is weak: the provided series shows revenue contraction from 2024 through 2026 paired with persistently negative EBITDA, operating income, and net income across all reported periods, indicating the diversified structure has not yet achieved operating profitability. No funding rounds, M&A transactions, or leadership changes beyond the CEO (稲葉秀二 / Inaba Shuji) and Group CFO (作田 陽介 / Sakuta Yosuke) are disclosed. The firm also published an April 2024 warning regarding stock-related solicitation fraud, highlighting retail-investor exposure.

Name

Oak Capital

Legal name

UNIVA Oak Holdings Limited

Website

https://oakcapital.jp

Company type

Private

Founded year

1918

Operating status

Operating

Headcount range

11–50 employees

Short description

Oak Capital (UNIVA Oak Holdings Limited, TYO:3113) is a Tokyo-listed Japanese holding company operating ten subsidiaries across securities advisory, beauty products, solar energy, digital marketing, trading, community radio, a 3x3 basketball league, payments, shared services, and restaurant regeneration under a Synergy Circle strategy.

Ownership category

akta.pro rank

Product category

Diversified Holding Company

NAICS

Offices of Other Holding Companies (551112), Corporate, Subsidiary, and Regional Managing Offices (551114)

SIC

Non-Operating Establishments (9995)

akta.pro primary industry

Corporate Development & Strategic Partnerships Advisory (JVs, Alliances, Carve-outs) (BPAHAOAG)

Keywords

• Boutique securities services
• Beauty healthcare products
• Renewable energy solutions
• Digital marketing optimization
• Payment platform services

Headquarters

HQ city

Akasaka

HQ country

Japan

HQ region

Asia

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

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

Revenue model

1. Growth Support Business (Securities/Brokerage): Boutique securities firm specializing in consulting services and fundraising proposals to address corporate management challenges and M&A needs
2. Beauty & Healthcare Product Sales: Sale of beauty and health products including Kombucha Lens brand; product-based revenue through direct sales
3. Renewable Energy Solutions: Sales and planning of solar power generation equipment and self-consumption solar systems that reduce electricity costs and CO2 emissions
4. Digital Marketing Services: Web optimization services including SEO, MEO, DFO, and EFO tools to improve conversion rates
5. Trading Business: Global distribution of pharmaceuticals, health foods, and beauty products with stable supply chains and brand value enhancement
6. Media Operations: Community FM radio broadcasting, events, and content production in Karuizawa resort area
7. Sports League Operations: Operation of 3x3 professional basketball league (RBL) in Japan
8. Payment Platform Services: Payment platform services co-creating evolved consumer experiences with partners
9. Shared Services: Back-office operational services for group companies supporting their growth
10. Restaurant Revival Development: Sustainable restaurant renovation and development reducing waste from store renovations and demolitions

Distribution channels7 records

Marketing channels5 records

Core offering

Oak Capital (UNIVA Oak Holdings Limited, 株式会社UNIVA・Oakホールディングス) operates as a diversified Japanese holding company managing ten distinct business segments: boutique securities and M&A advisory through UNIVA Securities, beauty and healthcare products including the Kombucha Lens brand via UNIVA Fusion, solar power generation equipment and self-consumption solar systems through North Energy, digital marketing optimization tools (SEO/MEO/DFO/EFO) via UNIVA Jayron, global trading of pharmaceuticals and beauty products, community FM radio broadcasting through FM Karuizawa, the professional 3x3 basketball league RBL operated by UNIVA RBL, payment platform services through UNIVA Paycast, shared back-office services via UNIVA Rhizoma, and sustainable restaurant regeneration consulting through Re:Dining. The group applies a "Synergy Circle" holding-company strategy to coordinate cross-segment collaboration across these varied businesses.

Product overview

Oak Capital (株式会社UNIVA・Oakホールディングス) operates as a holding company managing a diversified portfolio of nine distinct business segments. The group provides financial services (UNIVA Securities for growth investment and M&A advisory), beauty and consumer products (Kombucha Clenz brand via UNIVA Fusion), renewable energy solutions (North Energy solar systems), digital marketing tools (UNIVA Jayron with SEO/MEO/DFO/EFO optimization), payment infrastructure (UNIVA Paycast platform), media operations (FM Karuizawa radio), sports entertainment (UNIVA RBL professional basketball league), shared back-office services (UNIVA Rhyzoma), and restaurant regeneration consulting (Re:Dining). These businesses are managed under a synergistic holding structure where group companies leverage each other's strengths to create what the company calls a 'Synergy Circle'.

Differentiator

Problem solved

Functional benefit

Brands

• コンブチャクレンズ (Kombucha Lens): Beauty and health product brand represented by株式会社ユニヴァ・フュージョン
• FM軽井沢
• Royal Basketball League (RBL)
• Koh-EN TV

Products and services

• UNIVA Securities (株式会社UNIVA証券) Boutique securities firm providing corporate management consulting, M&A advisory, and fundraising proposals to address management challenges for growth-stage companies.
• Kombucha Lens (コンブチャクレンズ) via UNIVA Fusion Beauty and health product brand planned and sold through UNIVA Fusion, representing an innovative offering in the Japanese beauty and healthcare consumer market.
• North Energy (株式会社ノースエナジー) Solar Solutions Sales and planning of solar power generation equipment and self-consumption solar systems that reduce electricity costs and CO2 emissions for corporate energy consumers.
• UNIVA Jayron (株式会社ユニヴァ・ジャイロン) Digital Marketing Tools Website optimization tools providing SEO (Search Engine Optimization), MEO (Map Engine Optimization), DFO (Digital Fuel Optimization), and EFO (Entry Form Optimization) to prevent user drop-off and improve conversions for businesses seeking digital marketing improvements.
• Trading Business (トレーディング事業) Global distribution of pharmaceuticals, health foods, and beauty products with stable supply chains and brand value enhancement across multiple regions.
• FM Karuizawa (FM軽井沢) Community FM radio station broadcasting from Karuizawa, one of Japan's premier summer resorts, providing local news, events, and content production to regional residents and visitors.
• UNIVA RBL (Royal Basketball League) Professional 3x3 basketball league operated in Japan, positioned as the world's top urban sports basketball competition under the Royal Basketball League brand.
• UNIVA Paycast (ユニヴァ・ペイキャスト) Payment platform service enabling partners to co-create evolved consumer experiences through payment infrastructure and platform solutions.
• UNIVA Rhizoma (株式会社ユニヴァ・ライゾーマ) Shared Services Shared services provider handling back-office operations for group companies as part of co-creation support, serving as underlying operational support for group growth.
• Re:Dining (株式会社リ・ダイニング) Restaurant Regeneration Restaurant regeneration business promoting sustainable store development and renovation that significantly reduces waste from existing restaurant stores in commercial facilities, contributing to SDGs.

Segments3 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Nomura Holdings: Largest Japanese-headquartered investment bank and global financial services holding. Frames the upper-bound incumbent for Japanese securities holding companies; useful as a scale benchmark for UNIVA Oak Holdings' financial services arm.
• Rakuten Group: Japanese internet and financial services conglomerate spanning e-commerce, fintech/banking, payments, and digital content. Comparable to UNIVA Oak Holdings in operating a Japanese holding that blends consumer-facing digital businesses with payments infrastructure (relevant to UNIVA Paycast).
• Daiwa Securities Group: One of Japan's largest securities and financial services holding companies, with a broad retail/institutional securities platform and adjacent asset management. Represents the scaled incumbent against which UNIVA Securities' boutique positioning must differentiate.
• Mitsubishi UFJ Financial Group: Japan's largest banking and financial services holding group, spanning commercial banking, trust, securities, and asset management. Provides the megabank incumbent reference point relevant to UNIVA Oak Holdings' financial services positioning and Japanese capital-markets access.

Direct peers

• Aizawa Securities: Long-established Japanese regional boutique securities firm with roots in northern Japan. Comparable to UNIVA Securities as a Japanese boutique broker-dealer with a corporate advisory and capital-raising focus rather than mass-market retail brokerage.
• Houlihan Lokey: Global independent investment bank specializing in M&A advisory, fairness opinions, and restructuring. Directly comparable to UNIVA Securities' M&A and 'management consulting' advisory positioning — the international reference for the boutique advisory business UNIVA Oak Holdings operates.
• SBI Holdings: Japanese financial services conglomerate spanning online brokerage, banking, insurance, asset management, and biotech. Closely parallels UNIVA Oak Holdings' deliberate cross-segment holding-company model and use of a financial core to anchor a diversified portfolio.
• Monex Group: Japanese publicly-listed holding company that owns an online brokerage (Monex) alongside non-financial businesses (crypto, education, healthcare). Directly comparable to UNIVA Oak Holdings as a small-cap Japanese diversified holding with a financial services core and multi-segment portfolio.
• Tokai Tokyo Financial Holdings: Japanese holding company built around a regional securities franchise with adjacent financial services. Most directly comparable to UNIVA Oak Holdings' UNIVA Securities-led growth-support model in terms of size, governance style, and customer focus.

Regional players

• West Holdings: Japan-focused renewable energy holding company active in residential and commercial solar plus storage. Comparable specifically to UNIVA Oak Holdings' North Energy subsidiary as a Japanese holding with a corporate/customer-sited solar focus.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights5 records

Customer concentration

• Facebookfacebook.com/univa.capital.group/?locale=ja_JP
• Instagraminstagram.com/univagroup.official

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries10 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 Oak Capital