Years of experience
Audit, valuation and expert witness practice.
ABOUT US
A firm built on evidence.
We are a Mexican professional services firm specialized in auditing, business valuation and investment risk management. We work where decisions matter most: transactions, disputes, compliance and wealth strategy.
BY THE NUMBERS
A firm with proven substance.
Track record, reach and a network that stands behind every engagement.
Audits conducted
Forensic investigation, internal control and audit.
Network partners
Partner firms working to a single standard.
Countries with presence
Mexico, United States, Spain and Latin America.
HOW WE WORK
Technical rigor with business vision.
Independence
Objective analysis, professional integrity and well-supported conclusions.
Specialization
Teams with technical expertise and industry knowledge.
Integrated perspective
We connect finance, technology, regulation, people and strategy.
Close support
Practical solutions, clear communication and direct access to the partners.
WHO WE ARE
Global standards, partner-level attention.
Tutor Negotia is a Mexican firm specialized in forensic auditing and business valuation. We complement both practices with financial audit, tax, strategy, sustainability, technology and cybersecurity services, delivered through a network of professionals with a proven track record in Mexico, the United States, Latin America and Spain.
We work for companies, law firms, investors and public institutions that need certainty: a figure that holds up, an opinion that withstands scrutiny and a well-founded decision.
Specialization
Forensic auditing and valuation as our core practices.
Integrated perspective
Audit, tax, strategy, sustainability, technology and security.
Certainty
Evidence and conclusions built to withstand scrutiny.
Alfonso H. Ruelas Ramos
Chief Executive Officer
A MESSAGE FROM OUR CEO
A firm proves itself when clarity matters most.
Sooner or later, every organization reaches a moment that demands clarity: a transaction, a dispute, a decision that leaves no room for improvisation. Our work exists for those moments.
Over more than two decades we have learned that trust is not declared; it is earned. With method, with evidence and with the discipline to do things right when it matters most. That conviction has taken us from forensic auditing and valuation to risk management and large-scale investment projects, always under the most demanding standards.
But a firm is, above all, its people. Today we are a community of specialists who share the same quality standard, and through our International Network and TN University we extend it to more companies and more professionals in Mexico, the United States, Latin America and Spain.
I believe in a future where a firm born in Mexico sets the standard rather than follows it. We build that future together with every client who entrusts us with their decisions.
Leadership and experience in every market.
The Tutor Negotia International Network brings together independent, high-profile firms. Each partner contributes local experience and a proven track record; together they operate under one brand, one methodology and one quality standard. Membership is selective and by invitation only.
Partners with a track record
Established firms led by professionals with years of practice in their markets.
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Professional credentials
Certified public accountants with the qualifications each engagement requires.
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A common standard
The same methodology, ethics and quality control in Mexico, the United States, Latin America and Spain.
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THE GROUP
An ecosystem, not just an office.
FIRM
Tutor Negotia
Forensic audit, valuation, tax, ESG and strategic consulting.
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SECURITY
TNS Security
Private security, risk management and cybersecurity.
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EDUCATION
TN University
Online business school with specialized graduate programs.
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NETWORK
International Network
Alliance of independent firms in Mexico, Latin America and Spain.
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KNOWLEDGE
Research and publications
Articles, studies and editorial work that support our practice.
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PRESENCE
Nationwide coverage
Presence in Mexico's main cities through our network.
OUR VALUES
What we never negotiate.
Rigor
Sufficient evidence and sound method behind every conclusion.
Independence
Objective judgment, free of conflicts of interest.
Confidentiality
Strict safeguarding of client information.
Excellence
First-class quality and presentation.