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Restaurant Advisory Services

Restaurant Advisor in Spain: hospitality advisory with real results

Chef John Guerrero — restaurant advisor and hospitality consultant with 29+ years of experience. F&B advisory for restaurants, bars, cafes, and hotels in Madrid, Barcelona, and across Spain. English-speaking.

Diagnosis from EUR 1,250 · Mentoring from EUR 450/month · VAT not included
Restaurant advisor consulting with hospitality business owner in Spain
What we do

Full-service restaurant advisory: from concept to profitability

A restaurant advisor is not someone who tells you what to put on the menu. It is a professional who analyzes your hospitality business in its entirety — finances, operations, team, marketing, concept — and identifies exactly where money is being lost and how to recover it. At ChefBusiness, our advisory is based on real data from the Spanish market and over 29 years of direct experience in the sector.

Whether you need hospitality advisory for an established restaurant or F&B consulting for a new project, we work with independent restaurants, restaurant groups, bars, cafes, hotel F&B departments, dark kitchens, and catering companies. Every format has its own rules — and we know them all.

Restaurant advisor reviewing menu and financials with restaurant owner in Madrid
First time with ChefBusiness? Everything starts with the Gastronomic Diagnosis Learn more →
Services

Restaurant advisory areas

Who we are

Restaurant advisors with real experience

Chef John Guerrero, restaurant advisor in Madrid Spain
IMG · JOHN GUERRERO
Restaurant advisor and hospitality consultant
29+ Years of experience in hospitality — kitchen, management, and consulting
47 Clients advised in Madrid — restaurants, bars, cafes, hotels, and catering
+18% Average profitability achieved by our clients — from 6% to 18%
4.9 Client rating — trusted restaurant advisory in Madrid
Coverage

Restaurant advisory in Madrid, Barcelona and across Spain

Based in Madrid with in-person coverage across all neighborhoods. For projects outside Madrid: restaurant consulting in Barcelona and consulting in Valencia, Seville, Malaga, Bilbao, and the rest of Spain.

Related services: restaurant consulting in Madrid with full execution, food consulting, and opening a restaurant in Spain for international investors.

Services

Our consulting services

First time with ChefBusiness? Everything starts with the Gastronomic Diagnosis Learn more →
01
Full Consulting
Complete audit, cost control, KPIs, and continuous improvement plan for operating restaurants.
From €2,500/month
02
Concept & Opening
Concept development, viability, menu, business plan, and support through opening.
From €3,500 per project
03
Gastronomic Mentoring
Personalized mentoring for owners and chefs. In-person and video sessions.
From €450/month
04
Digital Transformation
AI, local SEO, digital marketing, and automation for restaurants seeking more visibility.
From €1,200/month
05
International Investors
End-to-end support for foreign entrepreneurs: visas, licenses, concept, and opening in Madrid.
Diagnosis from €1,650
FAQ

Frequently asked questions about restaurant advisory

What does a restaurant advisor do?
A restaurant advisor analyzes and improves every aspect of a hospitality business: financial viability, operations, menu design, team management, marketing, and positioning. Unlike a chef consultant who only works in the kitchen, a professional restaurant advisor addresses the business holistically — from the numbers to the plate. At ChefBusiness, we combine 29+ years of hands-on experience with data-driven strategy.
How much does a restaurant advisor cost in Spain?
At ChefBusiness, advisory starts with a Gastronomic Diagnosis from EUR 1,250 (3 weeks of in-depth analysis). Monthly mentoring from EUR 450/month. Full consulting projects (opening, restructuring, business plan) from EUR 2,500. Prices vary by project complexity and do not include VAT.
What is the difference between a restaurant advisor, a consultant, and a mentor?
A restaurant advisor provides expert guidance on concept, menu, and operations. A restaurant consultant executes action plans with KPIs and measurable results. A mentor supports the owner or chef in their professional development with regular sessions. At ChefBusiness, Chef John Guerrero combines all three profiles depending on what each client needs.
Do you work as restaurant advisors outside Madrid?
Yes. Based in Madrid with in-person travel anywhere in Spain. We work in Barcelona, Valencia, Seville, Malaga, Bilbao, and across the country. For international clients, we combine online sessions with on-site visits for key project phases. We have worked with clients in LATAM, the US, and the Middle East.
Do I need a restaurant advisor to open a restaurant in Spain?
It is not mandatory, but it drastically reduces risk. 60% of restaurants in Spain close within the first year, mostly due to avoidable mistakes in financial planning, concept, or management. A restaurant advisor with real experience helps you avoid those mistakes before you invest.
What types of hospitality businesses do you advise?
We advise across the entire hospitality sector: independent restaurants, restaurant groups, tapas bars, cafes, cocktail bars, dark kitchens, catering companies, bakeries, pastry shops, hotel F&B departments, and food trucks. Each format has its own business dynamics and we apply specific methodology for each.
Can you advise on F&B operations for hotels?
Yes. F&B (Food & Beverage) advisory is one of our specialties. We optimize hotel restaurant operations, breakfast service, room service, banqueting, and multiple outlet management. We focus on food cost control, service experience, and operational efficiency specific to hotel hospitality.
How long does a restaurant advisory engagement last?
It depends on the service: the initial diagnosis takes 3 weeks. A full opening project takes 3 to 6 months. Mentoring is monthly and renewable. An operational restructuring project takes 2 to 4 months. No lock-in contracts — we work per project or per month.
Restaurant advisor analyzing hospitality business data — ChefBusiness Spain

Looking for a restaurant advisor you can trust?

We start with a 3-week Gastronomic Diagnosis. No commitment required. Full confidentiality.

Request advisory consultation →
The first step

Everything starts
with the diagnosis.

21 days of joint work. Profile, objectives, viability. We design exactly what your business needs.

From €1,250 · Professional service
Same consultant diagnoses and executes
In-person in Spain · Online for LATAM
We respond within 24h
Request your diagnosis or contact us

We respond within 24h · No commitment

Prices exclude VAT. Outside Spain, VAT does not apply.

Part of

ChefBusiness Group

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Need consulting or advisory for your idea or business? Write to us! Chef John Guerrero