Yudai Group

What Yudai Group does

Yudai Group (雄大株式会社) is a privately held Japanese multi-format entertainment and dining operator headquartered in Numazu, Shizuoka Prefecture, founded on January 11, 1986. The group operates approximately 27 stores across 11 business formats spanning full-service restaurants (crab cuisine, yakiniku, Nagoya-style red miso hot pot, creative Japanese izakaya, Italian café, Korean food, ramen, soba, grilled seafood), karaoke entertainment (Radio City chain, 3 locations), mobile-phone retail (Youcom, carrying docomo/au/SoftBank), golf practice facilities (Yudai Golf Center), banquet/event services, and a hot-spring facility, with most operations concentrated in eastern Shizuoka Prefecture and selective extension into Shizuoka City, Hamamatsu, and Aichi Prefecture.

Underlying technology is light and consumer-facing rather than proprietary-platform in nature: the group runs a proprietary mobile loyalty app (Yudai App, launched 2019) with point accumulation (1 point per 75 yen) that is scheduled to become the sole point-card mechanism by September 2026, supported by 30+ individual store-level LINE Official Accounts for real-time customer communication. Karaoke hardware is sourced through partnerships with DAM (Daiichikosho) and JOYSOUND (Exsing), with the latest DAM machine deployed in April 2025. No AI/ML capabilities, proprietary data platforms, or developer APIs are disclosed.

The business model is primarily transactional and direct-to-consumer across all formats, with pay-as-you-go pricing per cover (banquet courses ¥3,300–¥5,500 per person plus drink packages ¥1,650–¥1,980 per 120 minutes), per-room hourly karaoke rates with weekend/holiday premiums and student/senior discounts, and same-day dining-to-karaoke second-party bundles. A dedicated travel-industry sales channel targets tour groups in the Gotemba/Mt. Fuji area with banquet catering and complimentary shuttle buses. The group also runs community-facing initiatives including sponsorship of the 223 Music Festival and local cleanup activities. Revenue figures, headcount, and ownership structure beyond Representative Director Tsuchiya Daiga (土屋 大雅) are not publicly disclosed.

Name

Yudai Group

Legal name

雄大株式会社

Website

https://yudai.co.jp

Company type

Private

Founded year

1986

Operating status

Operating

Short description

Yudai Group is a privately held, Numazu-based Japanese multi-format entertainment and dining operator running roughly 27 stores across 11 formats — including restaurants, karaoke, mobile retail, and golf — concentrated in Shizuoka Prefecture and serving local consumers, tour groups, and banquet/event customers.

Ownership category

akta.pro rank

Product category

Restaurant and Entertainment Services

NAICS

Full-Service Restaurants (722511), Restaurants and Other Eating Places (72251), Mobile Food Services (72233)

SIC

Retail-Eating & Drinking Places (5810), Retail-Eating Places (5812), Services-Miscellaneous Amusement & Recreation (7990)

akta.pro primary industry

Seafood QSR (THAFAAAH)

Keywords

• Restaurant chain operations
• Karaoke entertainment services
• Mobile phone retail
• Banquet and catering services
• Multi-format dining

Headquarters

HQ city

Numazu

HQ country

Japan

HQ region

Asia

Offices9 records

Markets served

GTM type

B2C

Offering type

Services

Cost components

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

Revenue model

1. Restaurant Operations: Core revenue from multi-format dining operations including crab cuisine (甲羅本店八宏園), yakiniku (カルビ一丁), hot pot (赤から), creative cuisine (ゆうが), Italian café (VANSAN), Korean dining (大韓食堂), ramen (松福), soba (吉祥庵, 蕎麦鷹乃), izakaya (大衆酒場イマさん, 大衆食堂イマさん), grilled seafood (浜焼きしんちゃん), and banquet/event catering.
2. Karaoke Entertainment Services: Hourly room rental and food/beverage sales from RADIO CITY karaoke chain (3 locations in Numazu, Mishima, and Kannami). Offers lunch packs, party plans, all-you-can-drink packages, and second-party discount bundles with group restaurant visits.
3. Mobile Network Retail (ユーコム): Mobile phone sales and related services through docomo, au, SoftBank operators. Commission-based retail revenue from device and plan sales.
4. Golf Center Operations: Golf practice range operations (雄大 골프センター) generating revenue from range fees, equipment sales, and lesson services.
5. Tourism and Group Catering: Banquet and catering services for tour groups visiting Gotemba area near Mt. Fuji, including free shuttle bus service for group events and celebrations.

Pricing tiers

Go-to-market motion2 records

Distribution channels1 record

Marketing channels5 records

Core offering

Yudai Group operates a diversified multi-format entertainment and hospitality platform centered in Shizuoka Prefecture, Japan. The company's core offering consists of restaurant dining across 14+ specialty sub-brands (crab cuisine, yakiniku, Nagoya miso hot pot, creative Japanese cuisine, Italian cafe, Korean cuisine, ramen, handmade soba, izakaya, grilled seafood, conveyor belt skewers, and meat specialty), complemented by the Radio City karaoke entertainment chain (3 locations), mobile phone retail operations (Youcom), and golf practice facilities (Yudai Golf Center). All formats are integrated through a proprietary mobile loyalty app (Yudai App) and multi-store LINE official account network that enable coordinated customer engagement, point accumulation, and cross-format promotions.

Product overview

Yudai Group (雄大株式会社) is a diversified entertainment and restaurant company based in Numazu, Shizuoka Prefecture, Japan, founded in 1986. The company operates a portfolio of 11 business formats across approximately 27 stores, primarily focused on dining and entertainment. The core offering consists of multiple restaurant sub-brands (crab cuisine, yakiniku, izakaya, Italian cafe, soba, Korean food, ramen, grilled seafood) and karaoke entertainment (Radio City), supported by a proprietary mobile app (ゆうだいアプリ) and official LINE accounts for customer engagement. The company also operates mobile phone retail (ユーコム) and golf practice facilities (雄大ゴルックセンター). The product portfolio functions as a multi-brand platform with centralized loyalty (point card) and digital engagement (app, LINE) infrastructure supporting all physical store locations.

Differentiator

Problem solved

Functional benefit

Brands

• Radio City (カラオケラジオシティー): Karaoke entertainment chain with multiple locations in Numazu, Mishima, and Kannami
• Kora Honten Hakkouen (甲羅本店八宏園)
• Akakara (赤から)
• Karubi Icchou (カルビ一丁)
• Sousou Ryouri Yuga (創作料理ゆうが)
• Ebisuya (えびす家)
• Youcom (ユーコム)
• Yudai Golf Center (雄大ラウンドセンター)
• VANSAN
• Kichouan (吉祥庵)
• Kushiya Monogatari (串家物語)
• Daikhan Shokudou (大韓食堂)
• Nikunobugyou (肉の奉行)
• Hamayaki Shinchang (浜焼きしんちゃん)
• Shoufuku (松福)
• Soba Takano (蕎麦 鷹乃)
• Taishuu Sakaba/Shokudou Imasan (大衆酒場/食堂イマさん)
• Yudai Fesuta (雄大フェスタ)
• Yuudai Onsen (ゆうだい温泉)

Products and services

• Kora Honten Hakkouen (甲羅本店八宏園) Crab cuisine specialty restaurant offering fresh, direct-from-source crabs at reasonable prices. Features seasonal menus, banquet facilities accommodating up to 100 guests, and dedicated services for celebratory occasions (weddings, anniversaries) and memorial services. Locations in Numazu, Fuji, and Gotemba.
• Radio City Karaoke (カラオケラジオシティー) Karaoke box chain with three locations (Numazu, Mishima, Kannami) offering private rooms, latest karaoke machines (DAM and JOYSOUND systems), food and drink service, manga reading libraries (3,000-5,000 books), free parking, and party/event facilities with capacity up to 40-50 guests.
• Sousou Ryouri Yuga (創作料理ゆうが) Creative Japanese cuisine izakaya with stylish atmosphere offering chef-prepared creative dishes. Features private rooms and banquet services at Numazu and Mishima locations, with 17 private rooms and banquet capacity of 40 guests at Mishima. 3-hour free parking voucher for dining guests.
• Karubi Ichicho (カルビ一丁) Yakiniku (Korean BBQ) restaurant chain with multiple locations including Numazu, Daijin, Gotemba, and Fuji, offering grilled meat dining experience.
• Akakara (赤から) Nagoya-style red miso hot pot (akakara nabe) specialty chain with locations in Numazu, Mishima, Gotemba, Fuji, and Kannami.
• Fukushoku Dining Ebisuya (福食ダイニングえびす家) Family-friendly dining restaurant with izakaya atmosphere located at Fuji location.
• Youcom (ユーコム) Mobile phone terminal sales network offering smartphone sales and mobile carrier services through SoftBank, au, and docomo operators.
• Yudai Golf Center (雄大ゴルフセンター) Golf practice range facility with multiple locations including Kannami and Shimizu-cho, offering range fees, equipment sales, and lesson services.
• VANSAN (イタリアンカフェVANSAN) Organic-focused Italian cafe/bar chain with locations in Hamamatsu, Fuji, and Numazu.
• Kisshouan (吉祥庵) Handmade soba restaurant using Hokkaido-grown buckwheat flour, stone-ground and freshly prepared. Located in shopping malls (Lalaport Numazu and Lalaport Aichi Higashi).
• Kushiya Monogatari (串家物語) Self-grilling tempura (kushikatsu) restaurant located at Lalaport Numazu shopping mall.
• Shoufuku (松福) Ramen restaurant brand located in Shizuoka City Aoi-ku (Oguradoori store).
• Soba Takano (蕎麦 鷹乃) Soba restaurant located in Shinshizuoka Senoba shopping complex.
• Daikan Shokudo (大韓食堂) Korean cuisine takeout and eat-in food court restaurant located at Lalaport Numazu mall.
• Niku no Bungyo (肉の奉行) Meat specialty restaurant located at Asty Mishima station building.
• Hamayaki Shinchang (浜焼しんちゃん) Grilled seafood restaurant located at Numazu Port.
• Yudai App (ゆうだいアプリ) Official smartphone loyalty application for Yudai Group providing point card functionality (1 point per 75 yen spent), exclusive member discounts (2% standard member discount), store reservations, and takeout ordering across all group store locations. Point cards transitioning to app-only by September 2026.

Quantifiable outcome

• Point accumulation: 1 point per 75 yen spent
• +2 more outcomes

Named customers3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Four partnerships are on record, tiered core and minor.

• 第一興商 (DAM / Daiichikosho)coreTechnology or IntegrationEquipment partnership for karaoke machines; Yudai Group's RADIO CITY karaoke chain operates DAM branded karaoke systems including LIVE DAM WAO!, LIVE DAM Ai, and LIVE DAM STADIUM models, representing the latest generation karaoke technology platform.
• エクシング (JOYSOUND)coreTechnology or IntegrationEquipment partnership for karaoke machines; Yudai Group operates JOYSOUND MAX GO, JOYSOUND MAX2, and JOYSOUND MAX systems featuring smartphone karaoke remote app integration and high-resolution audio capabilities.
• 食べログ (Tabelog / Kakaku.com)minorChannel Partner/ Reseller/ DistributorRestaurant reservation and review platform partnership for Kora Honten locations, enabling online booking through third-party platform.
• ホットペッパー (HotPepper)minorChannel Partner/ Reseller/ DistributorRestaurant reservation and coupon distribution platform partnership across Yudai Group restaurant brands including Kora Honten and Yuga for online booking, course selection, and promotional coupon distribution.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Emerging players

• S Foods Inc. Specialty meat and prepared food company. Comparable to Yudai's Karubi Icchou yakiniku and Nikunobugyou meat-focused formats in the specialty protein category.

Direct peers

• Watami Co., Ltd. Major Japanese izakaya and restaurant operator with multi-format portfolio across dining, karaoke, and entertainment. Comparable to Yudai in format breadth and integrated dining-plus-entertainment positioning, though at significantly larger national scale.
• Pasela Resorts, Inc. Major karaoke entertainment chain in Japan with integrated dining. Directly comparable to Yudai's Radio City karaoke plus dining package model, though at much larger national scale.
• Hiday Hidaka Co., Ltd. Operates casual dining chains including ramen and izakaya formats. Comparable regional Japanese multi-format restaurant operator with similar customer demographics.
• Saizeriya Co., Ltd. Italian family restaurant chain that competes directly with Yudai's VANSAN brand in casual Italian dining. Comparable in target customer segment and value-oriented pricing.

Broad incumbents

• Toridoll Holdings Corporation: Operates Marugame Seimen udon, Yamakyu, and other restaurant chains globally. Comparable in multi-brand restaurant strategy, with Yudai's hot pot and izakaya formats overlapping Toridoll's category coverage.
• Skylark Holdings Co., Ltd. Operates family restaurant, izakaya, sushi, and buffet chains across Japan (Gusto, Bamiyan, Yumean). Comparable multi-format casual dining model, though at substantially larger national scale with stronger procurement leverage.
• Create Restaurants Holdings: Operates diverse restaurant formats including izakaya, yakiniku, and entertainment venues. Comparable multi-format restaurant and entertainment platform with karaoke integration.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks6 records

Key highlights5 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries19 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 Yudai Group