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For the occasions that matter,
personally led by the chef.
The Bespoke Chef
Corporate Receptions · Private Dining
Profile
Returning to Japan, he served as Sous Chef at Mal d’Amour at the Tokyo Bay Court Club, before taking the helm as Executive Chef of L’Art et la Manière in Ginza — where his cuisine earned a score of 14 from Gault & Millau and a Bronze distinction at the Tabelog Awards.
Today, under the name Hiromi Koshimizu Gastronomie, he devotes himself to the occasions that ask for more than a meal: important corporate dinners, the entertaining of distinguished guests, private dining and receptions.
Awards & Recognition
- Gault & Millau
- 2018 — 14/20
- Tabelog Award
- Bronze 2019 / 2020
Our Services
Service & Plans
An Invitation
Corporate receptions, private dining and weddings.
Three distinct forms of hospitality, each designed around the purpose of your gathering and the guests you are hosting.
Executive Catering
Executive Catering
For corporate events, board gatherings and receptions. Chef Hiromi Koshimizu personally oversees each occasion from preparation through service.
¥8,000〜
excl. tax / per guest
Haute Couture
Private Dining
Haute Couture Private Dining
For important negotiations and occasions involving VIP guests. Available for private residences, villas and dedicated dining spaces, with bespoke menus from two guests.
¥20,000〜
excl. tax / per guest
Bespoke Wedding
Bespoke Wedding
Intimate to mid-scale wedding receptions. Seated tasting menus or standing service, with thoughtful care for allergies and dietary requirements.
¥15,000〜
excl. tax / per guest
For Brands & Operators
Dining Experience Direction
Culinary Direction & Brand Production
For restaurant operators, F&B venues and brands, we provide hands-on direction from culinary development through operational design.
Discuss a Project →
Signature Experience
A single dish can change the atmosphere at the table.
Monument de Foie Gras
A course within our private dining tasting menu.
The moment it is served, attention turns to the plate, heightening both anticipation and the energy around the table.
Selected Works
Works & Cases
Selected Engagements
The boardrooms of listed companies, the entertaining of VIP guests, receptions held within embassies.
For the moments that matter most — when an important guest is to be received — we are chosen, again and again.
Featured Case
Haute Couture Private Dining
Private Dining at a
Family Estate
Within a setting where open flame was not permitted, a full tasting menu was carried through to its conclusion. The location and the guests remain undisclosed; the evening was orchestrated, in its entirety, by Hiromi Koshimizu in person.
- Setting
- Private estate · fire-restricted
- Format
- Tasting menu
- Disclosure
- Confidential
Closing Dinner
A Foreign CEO’s
Closing Dinner
An intimate dinner to mark the close of a confidential negotiation. From the rhythm of the conversation to the timing of each course, everything was composed in concert — supporting the final chapter in the building of a relationship.
- Location
- Minato, Tokyo
- Guests
- 12
- Investment
- ¥35,000 / person
Executive Catering
An Investor
Reception
A reception for eighty guests, choreographed to the flow of the programme. Each course was served to the cadence of the presentations, quietly carrying the host’s intention through the evening.
- Location
- Minato, Tokyo
- Guests
- 80
- Investment
- ¥18,000 / person
Bespoke Wedding
A Wedding
Banquet
Within the constraints of a university guesthouse, a true full-course banquet was realised. For seventy guests, an evening was tailored to a milestone that comes but once in a life.
- Venue
- University guesthouse
- Guests
- 70
- Investment
- ¥25,000 / person
Privacy
We never publish a client’s name, company or the photographs of a venue without consent.
In confidence, we share only the nature of each engagement — and the words of those we have had the honour to serve.
The Bespoke Chef
A shared meal brings us closer to those who matter most.
From menu concept through service on the day,
personally led by the chef.

Selected Work
Private Dining at a Private Residence
Despite restrictions on the use of open flame, a full-course dinner was delivered as planned. The location and guests remain confidential. Chef Hiromi Koshimizu personally oversaw the entire service.
Voice — Listed IT company, leadership
“Because open flame could not be used, I honestly did not expect food of this standard. Yet the flavour, quality and composition all exceeded what I would normally expect from a restaurant.”
“Today, whenever we host an important client, Chef Koshimizu is always the person we turn to.”
VOICE — Listed IT company, leadership
I personally lead each occasion, from the initial concept through to the kitchen on the day. The number of engagements I can accept at any one time is therefore naturally limited.
Depending on the nature of the request, there may be occasions we are unable to accept.
Process
From Inquiry to Service
From First Enquiry to the Evening Itself
We listen closely to your intention and your wishes, and propose a composition worthy of the occasion.
Consultation
We come to understand the purpose of the gathering, those who will be present, and the setting of the day.
Beginning with your wishes, we open the field of what is possible.
Menu & Estimate
From our conversation, we conceive a menu for that singular evening.
It is presented to you in writing, together with an estimate.
Confirmation
We review the details together and refine them as needed.
Once everything is settled, preparation for the day begins in earnest.
The Evening
The evening we envisioned is given form through cuisine and service.
So that everyone present may give themselves wholly to the moment.
Our Promise
Entrusted With Your Most Important Gatherings
Response Time
As a rule, we respond to enquiries within two business days.
Confidentiality
Client names, company names, venues and details of the occasion are never shared publicly without permission. Non-disclosure agreements are available upon request.
Food Safety
We monitor hygiene, temperature and ingredient condition throughout preparation and service to maintain a safe serving environment.
Voice
Trust & Testimony
Client Voices
Feedback from senior executives and corporate leaders, presented with minimal editing.
Corporate Dining
We hosted important guests in the private dining room at our new headquarters.
After this experience, Chef Koshimizu is the only person we consider when hosting guests here. Our guests were genuinely delighted, and I am truly glad we chose to hold the dinner.
Major Corporation