Corporate Receptions · Private Dining
From the first idea of a menu to the evening itself —
the Chef, in person.
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 — each one composed, cooked and served by his own hand.
Our Services
Service & Plans
An Invitation
Corporate occasions, private dining, weddings.
Three distinct forms of hospitality, each composed around the nature of your gathering and the guests you wish to honour.
Executive Catering
Executive Catering
- Corporate events, board gatherings and receptions
- From ten guests to mid-scale occasions
- Compositions to the standard of a luxury hotel
- Menus attuned to the purpose of the day
- Hiromi Koshimizu present throughout, overseeing every detail
Haute Couture Private Dining
Haute Couture Private Dining
- For pivotal negotiations and the entertaining of VIP guests
- Served in villas, private salons and dedicated spaces
- A full tasting menu of true restaurant calibre
- From two guests, entirely bespoke
- Hiromi Koshimizu attending in person, from first course to last
Bespoke Wedding
Bespoke Wedding
- Intimate to mid-scale wedding receptions
- Seated tasting menus or standing receptions, as you wish
- Thoughtful care for allergies and dietary requirements
- Service shaped to the conditions of your chosen venue
For Brands & Operators
Dining Experience Direction
Culinary Direction & Brand Production
For restaurateurs, F&B venues and brands —
a direction line that accompanies you from culinary supervision to the building of operations, bringing the discipline of fine dining to every detail of the guest experience.
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.
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.
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.
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.
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.
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.
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, and to one another.
Our Promise
Entrusted With Your Most Important Gatherings
I.
On Our Reply
As a rule, we respond to every enquiry within two business days.
II.
On Your Information
What you entrust to us remains with us, and with no one else.
III.
On Accepting an Engagement
Where we cannot do a request full justice, we say so — plainly, and with respect.
Voice
Trust & Testimony
In Their Words
Leaders of listed companies. Presidents of major firms.
Here, in words close to the original, are those we have had the privilege to serve.
Private Dining
Leadership
In a setting where no open flame was possible, I confess I had not expected food of this calibre.
In truth — the taste, the quality, the composition — all of it felt beyond a restaurant. I still remember every guest at the table being quietly astonished.
Today, whenever we receive an important client, he is the one we call, without exception.
Corporate Dining
President
We received important guests in the reception room of our new headquarters.
When we entertain here, I can no longer imagine anyone but Hiromi Koshimizu. Our guests were genuinely delighted — I am only glad we chose to hold the evening.
Corporate Catering
I had never imagined our own offices could take on the air of a fine hotel.
Our president, the entire board, and every guest were delighted — inviting Hiromi Koshimizu was more than worth it.
Visual Records
Gallery & Moments
Moments
A record of the occasions entrusted to us.
The cuisine, the setting, and the particular atmosphere of each evening.
Q&A
Questions & Answers
Frequently Asked
The questions we are most often asked before an engagement.
We hope they offer a helpful prelude to our conversation.
Primarily within Tokyo, extending to Kanagawa, Yamanashi, Shizuoka, Chiba and Saitama. For Karuizawa and other regions, we will gladly advise on availability once the date, the number of guests and the conditions of the venue are known.
For important dates, we recommend enquiring several months ahead. For nearer dates, too, we will advise on availability once the date, party size and venue conditions are confirmed.
As a rule, we reply within two business days. On days when we are working on site, we respond in turn upon our return. Having considered your enquiry, we will also tell you frankly whether it is one we are able to accept.
We adjust the content of the menu rather than the number of courses. Allergies, preferences and the mood you wish to create are all discussed together during our meeting.
A tasting may be arranged on an individual basis, depending on the content, the dates and the nature of the engagement. In our preliminary meeting, we learn the purpose of the occasion, the standing of your guests and the conditions of the day, and share our thinking on the cuisine in full.
We are delighted to propose wine — or non-alcoholic — pairings, composed around the menu and the company gathered at the table.
Not at all; everything is in our care. Once service has ended, we collect the tableware and equipment, clean the cooking area and manage all waste, leaving the space close to the state in which we found it.
We never disclose a client's name or the details of a venue without consent. The more important the occasion, the more there is to protect. In our meeting, we are glad to share — as far as we are able — the nature and scale of the engagements we have undertaken.
Even if the details are not yet settled, tell us the purpose, the number of guests and the timing, and we will guide you through what is needed, and how we proceed.
ContactWe usually reply within two business days.
News
News & Updates
Updates
Notes on current availability and recent activity.
Updated from time to time.
