O-Ku

What O-Ku does

O-Ku is a multi-unit Japanese sushi restaurant brand operating 11 full-service locations across the southeastern United States and Washington, D.C., with a twelfth unit in Winter Park, Florida slated for 2025. The concept, launched in 2010 in Charleston, South Carolina and formalized in 2013, is owned and operated by Indigo Road Hospitality Group (IRHG), a Charleston-based hospitality company founded by Steve Palmer. Each location offers a menu centered on nigiri, sashimi, makimono (specialty rolls), robata-yaki, teppanyaki, and a multi-course omakase tasting experience priced at $125-$175 per person, with premium add-ons such as A5 Wagyu and lobster teppan. The beverage program — featuring small-production sake, Japanese whisky, varietally correct wines, and signature cocktails — is a core differentiator, supported by a Certified Sommelier/Sake Advisor wine director at the group level.

The business model is consumer-direct dine-in revenue, supplemented by private event buyouts (10-80+ guests) handled through Tripleseat and gift card sales via Paytronix. Reservations run through OpenTable, marketing runs through Klaviyo email and per-location Instagram/Facebook accounts, and the website operates on BentoBox. Average dinner checks are estimated in the $50-$150 range across the system, with the omakase experience serving as the highest per-cover anchor. There is no delivery, no franchise model, and no e-commerce beyond gift cards.

The company is privately held, with no institutional equity, no venture funding, and no public listing. Growth is funded internally through IRHG and is paced at roughly one to two new units per year. Leadership is concentrated: Steve Palmer as Founder and Chief Vision Officer of IRHG, Kimball Brienza as Managing Partner of O-Ku since 2010, and Masatomo "Masa" Hamaya (Michelin-trained) as Executive Chef and Culinary Director overseeing culinary consistency across the system. The brand has been recognized by Travel + Leisure, Time Out, OpenTable Top 100 (2024), the Washington Post, and the James Beard Foundation (2024 Outstanding Restaurateur semifinalist).

Name

O-Ku

Legal name

O-Ku Sushi

Website

https://o-kusushi.com

Company type

Private

Founded year

2013

Operating status

Operating

Headcount range

11–50 employees

Short description

O-Ku is a privately held Japanese sushi restaurant chain operating 11 full-service locations across the southeastern U.S. and Washington, D.C., owned by Indigo Road Hospitality Group. It serves fine-dining consumers with sushi, sashimi, omakase ($125-$175), robata, and teppanyaki, plus private events.

Ownership category

akta.pro rank

Product category

Japanese Restaurants

NAICS

Full-Service Restaurants (722511)

SIC

Retail-Eating & Drinking Places (5810)

akta.pro primary industry

Ethnic & Regional Cuisine Restaurants (THAFACAD)

Keywords

• Japanese sushi restaurants
• Asian fusion dining
• Robata grill cuisine
• Teppanyaki restaurants
• Sashimi and nigiri

Headquarters

HQ city

Charleston

HQ country

United States

HQ region

North America

Offices11 records

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Supply Chain, Operations, Marketing or Sales

Revenue model

1. Dine-in Food and Beverage Sales: Core revenue from selling Japanese cuisine including sushi, sashimi, nigiri, specialty rolls, hot plates, and alcoholic beverages (cocktails, sake, wine, beer) to dine-in guests at multiple locations.
2. Omakase Tasting Menu: Multi-course chef's tasting menu experiences offered at $125-$175 per person at various locations, requiring reservations with 24-48 hours advance notice.
3. Private Event Hosting: Revenue from hosting private events, buyouts, and special occasions with food and beverage minimums required.
4. Gift Cards: Sale of gift cards through The Indigo Road platform for O-Ku locations.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels6 records

Core offering

O-Ku operates a multi-location Japanese sushi restaurant chain serving traditional Japanese cuisine including sushi, sashimi, nigiri, robata-grilled items, and teppanyaki dishes across approximately 11 locations in the southeastern United States. The brand also offers private dining and event services, operating as a concept within the Indigo Road Hospitality Group portfolio.

Product overview

O-Ku is a multi-location Japanese sushi restaurant chain offering authentic Asian cuisine with a regional approach. The core product portfolio includes traditional sushi items (nigiri, sashimi, makimono/sushi rolls), chef-driven Omakase tasting menus, and Japanese cooked entrees (robata-yaki, teppanyaki, hot plates). Supporting offerings include a comprehensive beverage program with specialty cocktails, sake, wine, and Japanese whiskey, plus private event services for groups. The restaurant chain operates 11 locations across the southeastern United States and DC, with additional locations planned.

Differentiator

Problem solved

Functional benefit

Products and services

• O-Ku Sushi Restaurant Dining Full-service Japanese sushi restaurant offering sushi, sashimi, nigiri, robata, and teppanyaki for dine-in customers across 11 locations in the southeastern United States.
• O-Ku Private Dining and Events Private dining and event services for groups, corporate functions, and special occasions featuring the O-Ku Japanese cuisine menu at the brand's southeastern U.S. locations.

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration8 records

Partnerships

One partnership is on record.

• The Indigo Road Hospitality GroupcoreStrategic or Co-development PartnerParent company that owns and operates O-Ku brand. Founded by Steve Palmer in 2009, IRHG grew from one restaurant to portfolio of restaurants and hotels across the country. Provides operational infrastructure, marketing, HR, finance, and growth capital.

Scale indicators4 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• Sushi Nakazawa: High-end omakase-focused sushi restaurant in NYC led by Chef Sushi Nakazawa. Comparable to O-Ku's omakase tier ($125-$175/person) on premium price positioning, omakase experience model, and Michelin-aligned sushi quality.
• RA Sushi: Multi-location Japanese sushi and Asian fusion restaurant chain operating across the US. Comparable to O-Ku as a multi-unit sushi chain with similar price points, broad menu (sushi, specialty rolls, sashimi), and happy hour programming, though positioned slightly more casual.
• Nakato Japanese Restaurant: Long-running upscale Japanese restaurant in Atlanta, GA offering sushi, hibachi, and sake bar. Comparable to O-Ku as a southeastern upscale Japanese competitor; O-Ku's Atlanta GM Fatini Jiap formerly worked at Nakato, underscoring direct market overlap.
• Roka Akor: Upscale Japanese robata and sushi restaurant with locations in major US cities, founded by the team behind London-based Roka. Closely comparable to O-Ku on contemporary robata-yaki grilling alongside sushi/sashimi, premium pricing, and omakase-style offerings.
• Kona Grill: Multi-location upscale American restaurant chain with strong sushi and Asian menu presence across the US. Comparable to O-Ku as a multi-unit sushi-forward chain with bar programs and similar price positioning, though broader in cuisine focus.
• Sugarfish: Multi-location sushi restaurant brand founded in LA by Chef Nozawa and Pete Kelner, known for its "Trust Me" omakase-style set menus. Comparable to O-Ku on sushi-focused multi-unit operations, omakase presentations, and emphasis on fresh fish quality, though primarily West Coast footprint.
• Uchi / Uchiko (Uchi Hospitality): Multi-location upscale Japanese restaurant group founded in Austin, TX by Tyson Cole, now operating Uchi and Uchiko concepts across several US cities. Direct comparable to O-Ku on cuisine, price tier, omakase offerings, and Southeast/US expansion model; notably, O-Ku's Executive Chef Masatomo Hamaya previously led the kitchen at Uchiko Austin.

Broad incumbents

• Benihana: Established nationwide Japanese teppanyaki restaurant chain with long-running US footprint. Comparable to O-Ku as an established multi-unit Japanese concept though focused on teppanyaki tableside experience rather than sushi/omakase.
• Nobu Restaurants: Global luxury Japanese restaurant brand co-founded by Nobu Matsuhisa and Robert De Niro, with flagship locations worldwide. Comparable to O-Ku's higher-end locations on premium positioning, Japanese cuisine innovation, and signature cocktail/sake programs, though at a much larger scale and broader portfolio.
• Zuma: Global contemporary Japanese izakaya-style restaurant brand with locations across major world cities, founded by Rainer Becker. Comparable to O-Ku on upscale positioning, robata-style grills, sushi, sake program, and global brand recognition; broader luxury portfolio than O-Ku's regional focus.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/watch?v=gbWIOfRlTlQ
• Facebookfacebook.com/okugreenville
• Instagraminstagram.com/okuatlanta
• LinkedInlinkedin.com/company/o-ku

Compliance2 records

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 O-Ku