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This guide is outdated and will be removed on 1 November 2026. The up-to-date Mississippi reference is on the Mississippi country page.

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This guide contains public integration notes for Mississippi. Use it for identifier formats, search behavior, and country-specific caveats. The live source of truth for coverage, pricing, data sources, documents, legal forms, roles, and status values is the pricing page.

Mississippi coverage, pricing, and sources

Open the current catalog for supported datapoints, documents, sources, identifiers, and availability.
This jurisdiction may be in preview or limited availability. Check the live pricing page or contact support before relying on it in production.
Country details below are preserved as integration notes. If a table or example conflicts with the live pricing page, use the pricing page as the source of truth and contact support.

Table of Contents

API access: US-MS is accepted by /v2/search and /v2/company, but it is not yet listed in the countryCode enum of the OpenAPI specification.

Data Sources

Mississippi uses a single integration against the Mississippi Secretary of State, Business Services portal (corp.sos.ms.gov). The register covers all for-profit corporations, limited liability companies, non-profit corporations, limited partnerships, limited liability partnerships, general partnerships, sole proprietorships, cooperatives, foreign business trusts, and the foreign variants of these structures registered to do business in Mississippi. Each entity on the live portal carries a numeric Business ID as its primary identifier, together with the legal name, filing type, status, formation date, principal office address, registered agent, full officer and director roster (name, mailing address, and title), and name history.
Mississippi does not publish a bulk data extract or open-data feed. All data is fetched live from the Secretary of State public portal on each request.

Company Identifiers

Query Identifiers

Use /v2/search to resolve a company name to its Business ID before calling /v2/company. The Business ID returned by search is the exact value to pass as id in the profile request.

Identifiers in API Response

GLEIF is the supplementary data source for this identifier. company.identifiers.lei is returned when a company identifier has a unique match against this jurisdiction’s registration or validation references in GLEIF. An LEI (Legal Entity Identifier) has 20 uppercase letters and digits, ending in two check digits. Coverage varies by entity. The field is omitted when no unambiguous match is available. Lapsed or retired LEIs may be returned; annulled records are excluded.

Search Capabilities

Name search anchors on the beginning of the legal name. The result set is capped at 50 matches. Use a more specific query string to narrow results. Each entity appears once, under its Business ID, even when it has aliases or a prior legal name. Name reservations are not returned.

Active companies only

Search can return companies that are no longer active. activeOnly=true removes those whose status is known at search time; the others are kept. Name searches are filtered by status. Registration-number lookups return the company whatever its status.

Quirks & Gotchas

Mappings

The Filing Type field on the portal is a closed vocabulary of 14 values. These were enumerated from live portal data by sweeping ten distinct name-search queries across the full register.
Foreign variants carry no ISO 20275 ELF code because the ELF code belongs to the jurisdiction of formation, not the state of registration. See the pricing page for the full searchable table.

Officer Roles

The register publishes officer titles as free text. The set of observed values is small and largely closed. Topograph maps each raw title to a standardized role.
Officers holding multiple titles are emitted as separate legalRepresentatives entries, one per role. The Registered Agent is returned under otherKeyPersons (not legalRepresentatives) as a service-of-process designee.

Company Statuses

Mississippi publishes 12 distinct status values. Entities in Good Standing are active and in compliance. All other statuses indicate an inactive or terminated state.

Data Availability

The Trade Register Extract is a printed PDF of the current entity detail page from the Secretary of State portal, included with every company data request at no extra charge. Filed documents (Formation Form, Annual Reports, Amendments, and other filings) are ordered separately. See the pricing page for the full document catalog.

Example API Responses

Search by Name

Search by Business ID

Company Profile