Louisiana Business Lookup: The State That Published an API

A Louisiana business lookup runs through the Commercial Division of the Secretary of State — Commercial Search on CORAWeb for reading the register, geauxBIZ for filing into it. That much is ordinary. What is not ordinary, and what makes Louisiana worth a page of its own, is that the state anticipated the question every researcher eventually arrives at and answered it in public. If you need the Louisiana population rather than one entity at a time, the Louisiana company directory covers the same registered entities with industry, size and contact breakdowns attached.

The state published an API

In its own words, on its own search page:

"You can also subscribe to Commercial API, an application programming interface, to search for business information directly from your proprietary electronic systems."

That is the sanctioned route, stated by the office that owns the data. Not a tolerated workaround, not something inferred from a terms-of-service silence — a published interface with a name.

It is worth being precise about why that matters, because it is easy to read as a technical footnote. Every guide in this series ends at the same wall: a state register answers one entity at a time, and a question about a population cannot be asked of it. The usual responses to that wall are a prohibition, a file drop, or nothing at all. Louisiana's response is a door. For work that is genuinely Louisiana-only and genuinely at volume — reconciling a vendor list, monitoring a portfolio of state counterparties, keeping an internal system in step with the register — the Commercial API is the correct tool, and the fact that you do not have to ask permission to use it is the whole point.

Four answers to the same question

Set Louisiana beside three other states and you have most of the spectrum of how a US state responds to "can I do this at scale?"

Louisiana publishes an interface. Subscribe, and query the register from your own systems.

Florida publishes files. The Florida business lookup guide covers a Division of Corporations that offers free data downloads for informational purposes — offered as is, and subject to change, replacement or deletion at any time. Free, sanctioned, and explicitly without guarantees.

North Carolina prohibits and redirects. The North Carolina business lookup guide covers a state that says automated or scripted searches may degrade system performance and are not permitted, and names Data Subscription Services as the route for bulk access. The wall is explicit and so is the gate beside it.

Texas charges at the counter and splits the answer. The Texas business lookup guide covers a state where the formation record sits with the Secretary of State through SOSDirect, at a statutorily authorized fee charged on every search, while the question of whether an entity may lawfully trade sits with the Comptroller. Two agencies, and a meter on one of them.

Four states, four positions — an interface, a file, a prohibition with a paid gate, and a per-search charge across a split answer. None of them is wrong, and the differences are not about generosity. They are about what each state thinks its register is for.

What a Louisiana entity record contains

A self-contained summary. Louisiana's business register is held by the Commercial Division of the Louisiana Secretary of State, searched through Commercial Search on CORAWeb, with filing handled through geauxBIZ. The Secretary of State publishes a Commercial API, an application programming interface, to which a user can subscribe in order to search for business information directly from their own proprietary electronic systems. The Commercial Division registers domestic and foreign partnerships, limited liability companies, low-profit limited liability companies, corporations and limited liability partnerships; checks name availability for corporations, limited liability companies, partnerships, trade names, trademarks and service marks; and creates a Business License Checklist identifying the federal, state and local entities that may require licensing or permits. Business Services covers registering a business with the Louisiana Secretary of State, the Louisiana Department of Revenue and the Louisiana Workforce Commission, and the filing of amendments including annual reports with the Secretary of State. Commercial Division fees changed on 1 October 2026 under Act 921 of the 2026 Regular Legislative Session.

Where the record stops

The entity search is one third of a Louisiana registration, and that is the limit most likely to produce a confident wrong answer.

Registering a business in Louisiana means registering with three bodies: the Secretary of State, the Louisiana Department of Revenue and the Louisiana Workforce Commission. The Secretary of State holds the entity — its existence, its form, its filings. The Department of Revenue holds the tax registration. The Workforce Commission holds the employment side. The Commercial Search shows you the first and is silent on the other two, without saying that it is being silent.

So a clean entity record establishes that the company exists and has filed what the Commercial Division requires. It does not establish that the company is registered for tax, nor that it is registered as an employer, and nothing in the result hints at either question. In a state that makes the three-way structure explicit on its own Business Services page, treating one of the three as the answer is a choice rather than an oversight.

Louisiana goes further than most in admitting this. The Commercial Division creates a Business License Checklist identifying the federal, state and local entities that may require licensing or permits for a given business. A register that produces a checklist of other people's requirements is telling you, in the plainest available form, that its own record is not the compliance picture. Use the checklist rather than inferring from the entity record what it was never meant to carry.

Beyond that the usual ceiling applies: legal identity and filing history, not industry classification, headcount, revenue or commercial contact data. A firmographic directory covers the same registered entities with classification, size and contact data attached and queryable as a set; the United States company directory breaks the national file down by state.

A repeatable workflow

1. Treat an entity record as one registration of three. The Secretary of State's record says nothing about Revenue or the Workforce Commission, and does not flag its own silence.
2. Do not infer licensing from the entity record. Run the Business License Checklist; the state built it because the entity record does not answer that question.
3. For Louisiana-only work at volume, subscribe to the Commercial API. It is the state's own sanctioned route for querying business information from your systems, and no workaround is needed where a published interface exists.
4. Date your fee assumptions. Commercial Division fees changed on 1 October 2026 under Act 921 of the 2026 Regular Legislative Session; any figure carried from before that date is stale.

Source Register

Every quoted sentence and every item above comes from those sources, read on the date shown. The comparisons drawn with Florida, North Carolina and Texas are taken from those states' own published positions, each cited in the guide linked beside it. The reading that a published interface is an answer to the scaling question rather than a technical detail, and that a register producing a checklist of other bodies' requirements is conceding the limits of its own record, are InfobelPRO's judgements — presented as ours, not the Secretary of State's.