Private Dining & Private Events in Portsmouth, NH
Nichinan offers Japanese private dining and private events in downtown Portsmouth, NH. Located inside Hotel Thaxter, our intimate Parlor Room and full restaurant buyout options are ideal for corporate dinners, business presentations, rehearsal dinners, welcome events and milestone celebrations.
Our team will work with you to create a customized menu, with optional sake pairings and signature cocktails to complete the experience.
Parlor Room
Our Parlor Room offers an intimate setting for business dinners, presentations, rehearsal dinners and family celebrations.
Seated Dinner Capacity: Up to 16 guests (banquet-style table)
Cocktail Reception Capacity: Up to 25 guests (tray-passed hors d’oeuvres or minimal tables with banquet setup)
Food & Beverage Minimum: $2,000
Planning a business dinner or presentation? Tell us about your privacy, seating and presentation needs when submitting your inquiry. Our events team will help determine whether the Parlor Room is the right fit.
Full Restaurant Buy-Out
A full restaurant buyout gives your group exclusive access to Nichinan’s dining room, bar and staff, with the option to incorporate the Parlor Room into your event.
Seated Dinner Capacity: Up to 49 guests
Food and beverage minimum: $5,000 on weekdays or $10,000 on weekends
Customizable floor plans
Parlor Room may be incorporated into the event
Full buyouts are ideal for larger corporate events, cocktail receptions, weddings and milestone celebrations.
Not sure which space is right for your group? Share your estimated guest count and event format with our team, and we’ll help you select the best option.
Corporate Dinners &
Business Events
Nichinan offers a polished setting for client dinners, executive gatherings, pharmaceutical events and other private business occasions.
Our team can help you plan the room layout, menu and event flow around your group’s needs. If your event includes a presentation, privacy requirements or specific billing guidelines, please include those details in your inquiry so we can confirm what is available.
Rehearsal Dinners, Welcome Events & Celebrations
Gather with family and friends over contemporary Japanese dishes in an intimate downtown Portsmouth setting. Nichinan hosts rehearsal dinners, wedding welcome events, birthdays, retirement celebrations and other special occasions.
Choose the Parlor Room for a smaller seated dinner or cocktail reception. For larger groups and events requiring a different layout, a full restaurant buyout may be available.
Menus & Enhancements
Every event is different. Our team will work with you to create a dining experience that fits your group, event format and preferences.
Meet with our chef to discuss menu preferences and per-person pricing
Off-menu options available with final menu approval
Optional sake pairings or guided sake tastings
Signature cocktails available to personalize your celebration
Dietary needs reviewed with our culinary team
Planning Something Larger?
For larger events, Nichinan is available as a catering option at The 801, JGroup’s dedicated event venue in Portsmouth’s West End. The 801 accommodates up to 90 guests seated or 150 cocktail-style, with flexible layouts, a full bar, AV capabilities and onsite parking.
The 801’s event coordinator will help you plan the space, event flow, bar service and a contemporary Japanese menu catered by Nichinan.
Inquiry Form
We’d love to help make your event unforgettable. Please fill out the form below or reach out directly to our events team. Once we have your details, we’ll follow up with availability, pricing, and a personalized proposal.
Private Dining Frequently Asked Questions
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Nichinan offers two private event options. Our Parlor Room accommodates up to 14 guests for a seated dinner or 25 guests for a cocktail-style reception. Full restaurant buyouts are available for cocktail receptions of up to 49 guests.
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Nichinan is a great fit for business and client dinners, pharmaceutical events, rehearsal dinners, welcome events, birthdays, retirement celebrations and other private gatherings. Full restaurant buyouts are available for larger events.
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Yes. The Parlor Room has a $2,000 food and beverage minimum. Full restaurant buyouts have a $5,000 weekday minimum and a $10,000 weekend minimum. Final pricing will depend on your event date, menu and beverage selections.
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Yes. Our team will work with you to develop a menu based on your preferences and event format. Off-menu options may be available with final menu approval from our chef.
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Yes. Optional sake pairings, guided sake tastings and signature cocktails can be incorporated into your event. Let us know what you have in mind when submitting your inquiry.
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Please include any allergies or dietary restrictions in your inquiry. Our team will review them with the chef and help determine the best menu options for your group.
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Please include your presentation, privacy and seating requirements in your inquiry. Our events team will review your needs and confirm the available room configuration and equipment.
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Yes. Nichinan is available as a catering option at The 801, JGroup’s dedicated event venue in Portsmouth’s West End. The space accommodates up to 90 guests seated or 150 cocktail-style. The 801’s event coordinator will help you plan the space, service and a contemporary Japanese menu catered by Nichinan.
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We recommend reaching out as early as possible, particularly for Friday and Saturday events and gatherings during the holiday season. Availability and minimums may vary based on the date and event format.
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Complete the inquiry form with your preferred date, event type, estimated guest count and space preference. Our events team will follow up with availability, menu options, pricing and next steps.