Mexico Company Search: Where Company Data Actually Lives

Mexico requires every company to identify its ultimate owner, document the chain of control, and keep that information current. The penalty for getting it wrong runs to two million pesos per person. And there is no register — nowhere to file it, and nowhere for you to read it.

That is not an oversight. It is a deliberate design choice, and it makes Mexico the most unusual jurisdiction in this series. Every other country we have covered built a beneficial ownership register and then decided who could see it. Mexico skipped the register and went straight to enforcement.

This guide covers how the Mexican commercial register actually works across 32 state offices, why a company has two identifiers that do not talk to each other, what a registry extract does and does not contain, and how to work with an ownership regime that has teeth but no filing cabinet.

How many companies are registered in Mexico?

A reasonable question with an unreasonable answer: the RPC does not publish one. There is no official count of Mexican commercial companies, nationally or by state, and there never has been.

What Mexico does publish, in unusual depth, is a count of establishments — physical places where economic activity happens. INEGI, the national statistics institute, maintains the DENUE directory and runs the Economic Census every five years.

The 2024 Economic Census itself counted 7,093,631 establishments employing 36,592,279 people, of which 5,468,180 were private-sector and parastatal economic units. The census total exceeds the DENUE total because the DENUE excludes very small rural localities. Two official figures, both correct, measuring different things.

The RPC, and the federal layer trying to hold it together

Mexico’s commercial register is the Registro Público de Comercio, established under the Commerce Code and the RPC Regulations. It gives legal publicity to commercial acts — incorporation, capital changes, powers of attorney, mergers, liens — so that they take effect against third parties.

The law is federal. The register is not. It is coordinated by the Secretaría de Economía but implemented through registry offices in each of the 31 states and Mexico City, and the practical consequence is uneven data.

SIGER 2.0 — Sistema Integral de Gestión Registral — is the federal harmonisation platform, reachable through the Secretaría de Economía. It is the most serious attempt yet to give Mexico a single national interface, and it aggregates folio data from participating state offices. That last phrase is the one to hold onto: SIGER shows you what the states have uploaded.

The RPC covers commercial companies, branches of foreign companies, and individual commercial traders. Basic search is free, sits behind a captcha, and the interface is Spanish-first. Certified extracts carry a modest official fee.

Legal forms, and what each one tells you

Mexican legal form determines how much of the corporate record exists and where it sits. It is worth establishing before anything else.

Two identifiers, and why that is the whole problem

Almost every jurisdiction in this series has one company number that everything keys on — Singapore’s UEN, the UK company number, the Swiss UID. Mexico has two, issued by different authorities for different purposes, and neither opens the other.

The folio mercantil electrónico is the file the RPC opens when a company is first inscribed. It is permanent, surviving changes of name, domicile and ownership, and it accumulates every registrable act across the company’s life. It is not the notarial instrument number, which the notary assigns and which people frequently confuse with it.

The RFC is issued by SAT and is what commercial Mexico actually runs on — invoicing, electronic invoices, banking, contracts. It can be validated against SAT.

Searching in practice

Six things separate a Mexican lookup that stands up from one that does not.

1. Use the exact legal name, including the suffix. “S.A. de C.V.” is part of the name, not a descriptor, and dropping it will cost you matches.
2. Handle accents both ways. Records are inconsistent on á, é, í, ó, ú and ñ. Search with and without.
3. Never read a nil SIGER result as a negative. It may mean the state office has not uploaded the record.
4. Check the RFC length first. Twelve characters is a company; thirteen is an individual trader. That single check reroutes the whole enquiry.
5. Read the powers, not just the officers. The extract tells you who can bind the company and to what extent — rare, and the most useful field on the page.
6. Search the PSM separately. It is a different system with different content, and it is where current shareholding and corporate events live.
7. Use tuempresa.gob.mx to find a folio you do not have. The Secretaría de Economía’s business portal is the practical route from a company name to its folio mercantil, and it is the step most foreign teams skip before concluding a company cannot be found.

Status vocabulary

Corporate deadlines worth knowing

The pattern is worth noticing: almost nothing surfaces in the RPC on a schedule. Mexican corporate events reach the public record through the PSM and SAT, on their own clocks. A monitoring process pointed only at the registry will see a company’s file sit unchanged for years while its assemblies, capital and shareholding all move.

What it costs

Reading is cheap. Basic search in SIGER is free, behind a captcha, and Spanish-first. Certified extracts carry a modest official fee set at state level. The PSM is free both to publish in and to consult — unusual, and the reason it is under-used by foreign teams who assume a paywall. SAT’s RFC validation is free. Nothing about Mexican registry data is expensive; it is fragmented, which is a different problem.

What a registry extract actually contains

The shareholder position needs care. A full extract shows shareholders as recorded in the founding deed, which is a snapshot at incorporation. Later transfers are not systematically re-registered the way a UK confirmation statement refreshes the picture annually. Treat Mexican shareholder data as historical unless something in the filing history says otherwise.

The PSM — the source most foreign teams never open

The RPC is not the only public federal system holding Mexican corporate data, and the second one is routinely missed in English-language guidance, including guidance that otherwise gets Mexico right.

The Sistema Electrónico de Publicaciones de Sociedades Mercantiles — the PSM — is run by the Secretaría de Economía at psm.economia.gob.mx. It has been operating since 15 June 2015, and Article 50 Bis of the Commerce Code makes publication through it mandatory. It replaced the old requirement to publish corporate notices in newspapers and official gazettes. It is free to publish in, free to search, and open to anyone.

The catch is that PSM publications are events, not a maintained record. You are reading a stream of dated notices rather than querying a current state, and coverage depends on companies complying. Treat it as a corporate-events feed — valuable, incomplete, and free.

The beneficial ownership register that isn’t there

A decree published in the Official Gazette on 12 November 2021 added Articles 32-B Ter, 32-B Quáter and 32-B Quinquies to the Federal Tax Code, effective 1 January 2022. Mexican law calls the subject the beneficiario controlador — controlling beneficiary — rather than beneficial owner.

The obligation is unusually wide. It reaches legal entities, trusts and any other legal vehicle formed under Mexican law, and it also binds trustees, settlors, beneficiaries, notaries, brokers and financial institutions. Obliged parties must identify the controlling beneficiary, document the chain of control where one exists, and implement documented internal control procedures to obtain and update that information — procedures that form part of the accounting records SAT may inspect.

How the definition works

Two tests, applied in order under Rule 2.8.1.20 of the 2022 Miscellaneous Tax Resolution:

1. Benefit. The individual or group who, directly or through any legal instrument, obtains the benefit derived from participation in the entity, or who ultimately exercises rights of use, enjoyment, exploitation or disposal of an asset or service, or in whose name a transaction is carried out.
2. Control. If no such person can be identified, the person who directly, indirectly or contingently exercises control over the entity.

Rule 2.8.1.22 sets out what SAT may request — twenty-two items, plus five more where a chain of ownership or control is involved. This is not a light-touch regime.

Where this leaves Mexico

Set against the other jurisdictions in this series, Mexico is not simply more closed. It is structurally different.

The UK publishes its PSC register free to anyone. Singapore lodges the data with ACRA and restricts it to agencies, while making nominee status public. Switzerland is building a federal register the public will not be able to read. The UAE files with the licensing authority. All four created a filing.

Mexico created a duty and a deadline. That places it closest to Hong Kong, where the significant controllers register sits at the company’s own office — but Mexico goes further, because the information is not even a corporate register entry. It is tax accounting. Our survey of which countries publish UBO data sets out the wider picture.

Financial data: private companies

There is no annual accounts filing regime. A Mexican sociedad anónima or sociedad de responsabilidad limitada does not lodge yearly financial statements with the RPC, and the registry extract shows share capital but nothing resembling a balance sheet.

Financial data: listed companies

For listed issuers the position inverts completely, and this is the part most Mexico pipelines miss because none of it comes through the RPC.

Issuers on the Bolsa Mexicana de Valores or BIVA are supervised by the Comisión Nacional Bancaria y de Valores. They file audited annual and quarterly financial information, which is published, alongside continuous disclosure of material events.

Charges, liens and the RUG

One more federal system worth knowing, and the direct equivalent of the charges register a UK analyst would reach for.

The Registro Único de Garantías Mobiliarias — RUG — is the national register of security interests over movable property, operated within the Secretaría de Economía’s registry infrastructure alongside the RPC. It records pledges, retention of title, financial leases and other non-possessory security over a debtor’s assets, and it is searchable by debtor.

The 69-B list: Mexico’s strongest free adverse signal

If you read only one Mexican source beyond the registry, read this one. It is free, federal, published, and it carries consequences that reach the counterparty’s customers rather than just the counterparty.

Article 69-B of the Federal Tax Code empowers SAT to presume that a taxpayer has issued invoices for non-existent operations — typically where the entity lacks the assets, personnel, infrastructure or material capacity to have delivered what it billed for. The procedure runs in stages:

1. SAT detects inconsistencies in the taxpayer’s operating capacity and notifies a presumption individually.
2. The taxpayer has 15 business days to submit evidence and argument.
3. SAT evaluates. If the presumption is not rebutted, a definitive resolution follows.
4. The taxpayer is published on the listado global definitivo, in the Official Gazette and on the SAT portal.

Two lists exist and they are not the same thing. A presumption list opens the procedure and the taxpayer may still rebut it. The definitive list is the one with legal effect. Treating a presumption entry as a finding is a real error; ignoring it is another. Both are public and both are updated continuously through numbered oficios published in the Official Gazette.

There is no group structure in the register

The RPC registers entities, not groups. There is no parent field, no subsidiary field and no group identifier anywhere in the record, so two Mexican companies in the same group appear as unrelated files that happen to share officers.

Mexico does give you more raw material for reconstruction than most, but it is scattered across four systems:

• The founding deed in the RPC names corporate shareholders as at incorporation — one level up, frozen at that date.
• PSM current-structure notices under Arts. 73 and 129 LGSM refresh that picture where the company has complied.
• PSM merger agreements and capital resolutions show reorganisations as they happen.
• The RUG names secured parties and co-obligors, which is frequently the only place a sister-company relationship surfaces.

Above the Mexican entity the chain resolves only in the next jurisdiction’s register. Given how often Mexican operating companies sit under US, Spanish or Dutch holding structures, that cross-border step is usually where the real answer is — and it is not something any Mexican source will do for you.

Where to actually get the data

Mexican company data is spread across six systems run by three different authorities. Almost all of it is free to read. Almost none of it is available as a feed. This is the table to keep.

Blind spots worth planning around

What to watch

• SIGER 2.0 state onboarding. The platform is only as complete as the offices feeding it. Any material improvement in state participation changes what a nil result means — the single most consequential variable in Mexican registry data.
• PSM compliance rates. Current-structure notices are only useful if companies actually file them. Enforcement of Art. 50 Bis is the thing to watch.
• Any move toward a controlling beneficiary register. Mexico built an obligation without a filing. FATF pressure has moved other jurisdictions from that position to a register; it has not moved Mexico yet.
• S.A.S. adoption. Notary-free online incorporation with a single shareholder produces a thinner evidence trail than the traditional deed. If the form grows, the average Mexican corporate record gets shallower.

Global Database vs the RPC

As elsewhere in this series, the honest answer depends on the job, and often the registry wins.

Frequently asked questions