Mississippi Business Entity Search

Find Mississippi LLCs, corporations, and registered businesses. Cross-referenced with the Mississippi SOS and 12+ state registries.

Browse the Mississippi registry →

How to search Mississippi business entities

Every business that operates legally in Mississippi files a public record with the Mississippi Secretary of State. That record names the entity, identifies its registered agent for service of process, and tracks every formal filing through dissolution. Those records are open to anyone — that is the legal definition of a public registry.

Corporate.AI is a free, structured front door to Mississippi's public business filings. We mirror the state's data, normalize it against records from 49 other jurisdictions, and add the cross-state intelligence (shared officers, shared registered agents, NAICS sector classification, beneficial-ownership signals) that a single-state portal cannot provide. Use the search above to look up any Mississippi entity by name, by primary filing number, or by officer.

For absolute freshness — same-day filings, formal certificates of good standing, certified document copies — you should also have the Mississippi SOS portal bookmarked. We link directly to it from this page.

About the Mississippi SOS

The Mississippi Secretary of State is the office of record for every business entity formally registered in Mississippi. They maintain the public registry, accept new filings, and issue certificates of good standing. Corporate.AI mirrors and normalizes this data alongside records from 49 other jurisdictions.

Domestic LLC filing fee
~$50
Domestic Corp filing fee
~$50

Mississippi business entity search FAQ

How do I search Mississippi business entities?▶

Use the search box above to query Corporate.AI for any Mississippi-registered LLC, corporation, nonprofit, or partnership. You can also search directly at the Mississippi SOS's public registry portal. Corporate.AI consolidates Mississippi entity records with cross-state filings (foreign registrations, officer overlap, registered-agent networks) so a single search returns more context than the state portal alone.

Is Mississippi business entity search free?▶

Yes. Public Mississippi business filings are open records. Corporate.AI never charges to look up an entity, its registered agent, officers, or filing history. The Mississippi SOS also offers free public search; premium services (certified copies, certificates of good standing) typically cost $50 or more depending on document type.

What information is included in a Mississippi entity search?▶

Each Mississippi entity record on Corporate.AI includes the registered legal name, entity type (LLC, Corporation, LP, Nonprofit), formation date, current status, primary filing number assigned by the Mississippi SOS, registered agent (when published), officer roster (when published), and full filing history. We also surface entities that share officers, registered agents, or NAICS sector classifications across all 50 states.

How do I get a Mississippi certificate of good standing?▶

A certificate of good standing (sometimes called a certificate of existence or status certificate) must be issued by the Mississippi SOS directly — Corporate.AI does not issue official certificates. You can typically request one online from the Mississippi SOS for $13–$50 with same-day or 24-hour turnaround. The certificate confirms the entity is in good standing as of the issuance date.

How do I look up a registered agent in Mississippi?▶

Every Mississippi business entity is required to designate a registered agent — a person or company authorized to receive service of process at a Mississippi street address. Corporate.AI's registered-agent index lets you reverse-search: given an agent name, see every Mississippi entity that has designated them. This pattern is useful for due diligence, beneficial-ownership analysis, and competitive research. The Mississippi SOS's portal supports forward lookup (entity → agent) but typically not reverse lookup.

What's the difference between an LLC and a corporation in Mississippi?▶

A Mississippi LLC (limited liability company) is the most common entity type for small businesses — it offers liability protection with pass-through taxation and minimal corporate formalities. A Mississippi corporation (typically a C-corp or S-corp) is owned by shareholders, governed by a board, and is the standard vehicle for raising outside investment. Formation fees are similar — $50 for an LLC vs $50 for a corporation in Mississippi as of 2026 — but the tax, governance, and capital-raising profiles differ significantly.

How recent is the Mississippi business data on Corporate.AI?▶

Mississippi entity records on Corporate.AI are refreshed from the Mississippi SOS's public feed on the cadence the state publishes — daily, weekly, or monthly depending on jurisdiction. Each entity page displays a "last refreshed" timestamp so you can verify how recent the underlying record is. For absolute freshness, cross-check against the Mississippi SOS's live portal (linked above) before relying on a record for legal or contractual purposes.

Can I download Mississippi business entity data?▶

Yes. Corporate.AI's REST API and MCP server expose Mississippi entity records in machine-readable form for licensed use cases — KYC/AML programs, sales prospecting, journalism, academic research. Bulk downloads of the Mississippi SOS's underlying data are typically available directly from the state, sometimes free and sometimes for a fee. See our /api page for licensing terms.