Montana (US)

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

Montana coverage, pricing, and sources

Open the current catalog for supported datapoints, documents, sources, identifiers, and availability.

This jurisdiction is in beta. 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.

Data Sources
Company Identifiers
Search Capabilities
Quirks & Gotchas
Mappings
Statutory Filings
Data Availability
Documents
Example API Responses

Data Sources

Montana uses a single integration against the Montana Secretary of State via the public SoS Business Search portal at biz.sosmt.gov/search/business. This is the official online register for all business entities formed or qualified to do business in Montana, covering domestic and foreign corporations, limited liability companies, limited partnerships, limited liability partnerships, benefit corporations, professional corporations, nonprofit corporations, business trusts, and assumed business names.

Montana SoS (verification, primary). Every request reads live against the register.

Montana does not publish a free bulk data extract. Every call returns the register’s current state.

Company Identifiers

Query Identifiers

Identifier Type	Format	Example	Notes
Montana SoS File Number	One or two uppercase letter prefix followed by digits	`F022568`	The unique, constant identifier the Montana Secretary of State assigns to each entity at registration.

Montana file numbers use letter prefixes that encode the entity type:

Prefix	Entity type
`C`	Domestic Limited Liability Company
`D`	Domestic Profit Corporation (older registrations)
`E`	Foreign Limited Liability Company
`F`	Foreign Profit Corporation
`L`	Limited Partnership
`A`	Assumed Business Name / Trademark
`T`	Business Trust
`P`	General Partnership
`RN`	Reservation of Name

Entities with a D-prefix file number (older domestic corporation format) do not resolve correctly via the portal’s prefill URL. These entities can still be found via name search.

Identifiers in API Response

Identifier	Format	Example	Found In
`id`	Montana SoS file number	`F022568`	All entities

Search Capabilities

Search Type	Pattern	Example	Match Type	Expected Results
By Name	1–250 chars	`"Walmart"`	Substring	Up to 50
By File Number	Prefix + digits	`F022568`	Exact	Single entity

Name search is case-insensitive and returns up to 50 results. File number search locates a single entity and is the recommended path when the number is known.

Quirks & Gotchas

Quirk	Details
D-prefix prefill limitation	Entities registered under the older `D######` domestic corporation format cannot be pre-filled via URL parameter. Use name search for these entities.
No officers or directors	The Montana SoS public portal does not expose officer or director data. Officer information is only available inside filed annual report PDFs and is not part of this integration.
No shareholders or beneficial owners	Shareholder and beneficial-ownership records are not collected at the state level.
No activity codes	The Montana SoS does not collect NAICS, NACE, or ISIC industry classifications.
Registered agent detection	The registered agent is classified as `type: "company"` when the name matches common commercial registered-agent keywords (CT Corporation, Cogency, Northwest Registered Agent, etc.) and as `type: "individual"` otherwise.
Foreign entities use qualificationDate	Entities formed outside Montana carry a `qualificationDate` (the date they were authorised to do business in Montana) rather than a `registrationDate`.
Previous names	Former legal names are available in `legacyLegalNames` when the entity was previously known under a different name.

Mappings

Company Status

The Status field is read verbatim from the entity detail panel. The table below covers the values observed in the register.

Local Status	English Translation	Active
Active-Good Standing	Active — in good standing	Yes
Active-Not in Good Standing	Active — not in good standing	Yes
Inactive-Cancelled	Cancelled	No
Inactive-Withdrawn	Withdrawn	No
Inactive-Revoked	Revoked	No
Inactive Expired	Expired	No
Involuntary Dissolution	Involuntarily dissolved	No
Administrative Dissolution	Administratively dissolved	No
Dissolved	Voluntarily dissolved	No
Merged	Merged into another entity	No
Converted	Converted to another entity type	No
Cancelled Reserved Name	Reserved name cancelled	No
Expired Reserved Name	Reserved name expired	No

Status values that begin with “Active” are treated as active regardless of good-standing qualification. All other values are treated as inactive.

Legal Forms

The legal form is derived from the entity type string returned by the register.

Local Name	English Translation	Standardized
Domestic Limited Liability Company	Montana Limited Liability Company	Limited Liability Company
Foreign Limited Liability Company	Foreign Limited Liability Company	Limited Liability Company
Domestic Professional Limited Liability Company	Montana Professional Limited Liability Company	Limited Liability Company
Domestic Profit Corporation	Montana For-Profit Corporation	Corporation
Foreign Profit Corporation	Foreign For-Profit Corporation	Corporation
Domestic Benefit Corporation	Montana Benefit Corporation	Corporation
Foreign Benefit Corporation	Foreign Benefit Corporation	Corporation
Domestic Professional Corporation	Montana Professional Corporation	Corporation
Foreign Professional Corporation	Foreign Professional Corporation	Corporation
Domestic Nonprofit Corporation	Montana Nonprofit Corporation	Nonprofit Organization
Foreign Nonprofit Corporation	Foreign Nonprofit Corporation	Nonprofit Organization
Domestic Limited Partnership	Montana Limited Partnership	Partnership
Foreign Limited Partnership	Foreign Limited Partnership	Partnership
Domestic Limited Liability Partnership	Montana Limited Liability Partnership	Partnership
Foreign Limited Liability Partnership	Foreign Limited Liability Partnership	Partnership
General Partnership	General Partnership	Partnership
Business Trust	Montana Business Trust	Trust
Foreign Business Trust	Foreign Business Trust	Trust
Assumed Business Name	Assumed Business Name (DBA)	Other
Reservation of Name	Reservation of Name	Other

For entity types not in the table above, the legal form is resolved through AI enrichment and the standardized category may vary.

Other Key Persons

Montana publishes only the registered agent on the public portal. It is returned as an otherKeyPerson, not as a legalRepresentative.

Local Role Name	Standardized Role	Notes
Registered Agent	Registered Agent	Service-of-process designee. Can be a natural person or a commercial agent.

Statutory Filings

Montana entities file an annual report confirming the entity’s particulars are current. The register publishes “AR Due Date”, returned on the cross-country statutoryFilings field as next.dueDate.

{
  "statutoryFilings": {
    "annualFiling": {
      "cadence": "annual",
      "next": { "dueDate": "2026-04-15" },
      "source": "mt_sos"
    }
  }
}

US states publish no statutory accounts, so the accounts obligation is absent rather than returned empty. An empty object would read as “we looked and found nothing”, which is a different claim. Placeholder cells such as N/A or Inactive, Not Applicable are dropped rather than parsed as dates, so an entity with no obligation simply has no statutoryFilings.

Data Availability

Datapoint	Available	Notes
Company profile	Yes	Legal name, file number, entity type, status, registration or qualification date, principal and mailing addresses, former names.
Registered agent	Yes	Returned as `otherKeyPersons` with the role “Registered Agent”. Includes name and address.
Legal representatives	No	Officers and directors are not published on the Montana SoS public portal.
Shareholders	No	Not collected by Montana at the state level.
Ultimate beneficial owners	No	Montana does not maintain a public UBO register.
Activity codes	No	The Montana SoS does not collect NAICS, NACE, or ISIC codes.
Trade Register Extract	Yes	Printed PDF of the Montana SoS entity detail panel, captured at request time. Included with the company-data block.

Documents

Available Documents

Document	Availability	Format	Notes
Trade Register Extract	Always available	PDF	Printed capture of the Montana SoS entity detail panel. Included at no extra charge with the company-data block.

Certificate of Existence and other official certificates require a portal account and a payment to the Montana Secretary of State. They are not yet supported through Topograph. Contact support if you need certified copies.

Example API Responses

Search by Name

curl "https://api.topograph.co/v2/search?country=US-MT&query=glacier" \
  -H "x-api-key: YOUR_API_KEY"

[
  {
    "id": "C1548288",
    "legalName": "GLACIER BANCORP, INC.",
    "countryCode": "US-MT",
    "matchReason": { "matchType": "default" }
  },
  {
    "id": "F087432",
    "legalName": "GLACIER HILLS TRUCKING, INC.",
    "countryCode": "US-MT",
    "matchReason": { "matchType": "default" }
  }
]

Search by File Number

curl "https://api.topograph.co/v2/search?country=US-MT&query=F022568" \
  -H "x-api-key: YOUR_API_KEY"

[
  {
    "id": "F022568",
    "legalName": "WAL-MART INC.",
    "countryCode": "US-MT",
    "matchReason": {
      "matchType": "id",
      "identifier": { "registrationNumber": "F022568" }
    }
  }
]

Company Profile

curl -X POST "https://api.topograph.co/v2/company" \
  -H "x-api-key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"countryCode": "US-MT", "id": "F022568", "dataPoints": ["company", "otherKeyPersons"]}'

Active foreign profit corporation

{
  "company": {
    "id": "F022568",
    "countryCode": "US-MT",
    "legalName": "WAL-MART INC.",
    "registrationDate": "1991-10-07",
    "status": {
      "localName": "Active-Good Standing",
      "active": true
    },
    "legalForm": {
      "localName": "Foreign Profit Corporation",
      "englishTranslation": "Foreign For-Profit Corporation",
      "standardized": "Corporation"
    },
    "legalAddress": {
      "addressLine1": "1 CUSTOMER DR",
      "city": "BENTONVILLE",
      "postalCode": "72716",
      "region": "AR",
      "countryCode": "US"
    },
    "legacyLegalNames": ["WAL-MART STORES, INC."]
  },
  "otherKeyPersons": [
    {
      "type": "company",
      "role": {
        "localName": "Registered Agent",
        "standardized": "RegisteredAgent"
      },
      "company": {
        "legalName": "CORPORATION SERVICE COMPANY",
        "legalAddress": {
          "addressLine1": "2601 PROSPECT AVE",
          "city": "HELENA",
          "postalCode": "59601",
          "region": "MT",
          "countryCode": "US"
        }
      }
    }
  ]
}

Active domestic LLC

{
  "company": {
    "id": "C1548288",
    "countryCode": "US-MT",
    "legalName": "GLACIER BANCORP, INC.",
    "registrationDate": "2005-03-14",
    "status": {
      "localName": "Active-Good Standing",
      "active": true
    },
    "legalForm": {
      "localName": "Domestic Profit Corporation",
      "englishTranslation": "Montana For-Profit Corporation",
      "standardized": "Corporation"
    },
    "legalAddress": {
      "addressLine1": "49 COMMONS LOOP",
      "city": "KALISPELL",
      "postalCode": "59901",
      "region": "MT",
      "countryCode": "US"
    }
  },
  "otherKeyPersons": [
    {
      "type": "company",
      "role": {
        "localName": "Registered Agent",
        "standardized": "RegisteredAgent"
      },
      "company": {
        "legalName": "CORPORATION SERVICE COMPANY",
        "legalAddress": {
          "addressLine1": "2601 PROSPECT AVE",
          "city": "HELENA",
          "postalCode": "59601",
          "region": "MT",
          "countryCode": "US"
        }
      }
    }
  ]
}

Inactive dissolved entity

{
  "company": {
    "id": "C0042771",
    "countryCode": "US-MT",
    "legalName": "MISSOULA HARDWARE, LLC",
    "registrationDate": "1998-06-22",
    "status": {
      "localName": "Administrative Dissolution",
      "active": false
    },
    "legalForm": {
      "localName": "Domestic Limited Liability Company",
      "englishTranslation": "Montana Limited Liability Company",
      "standardized": "LimitedLiabilityCompany"
    },
    "legalAddress": {
      "addressLine1": "320 N HIGGINS AVE",
      "city": "MISSOULA",
      "postalCode": "59801",
      "region": "MT",
      "countryCode": "US"
    }
  },
  "otherKeyPersons": []
}

Available Documents

curl -X POST "https://api.topograph.co/v2/company" \
  -H "x-api-key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"countryCode": "US-MT", "id": "F022568", "dataPoints": ["availableDocuments"]}'

{
  "documents": {
    "tradeRegisterExtract": {
      "id": "doc_tre_abc123",
      "name": "Trade Register Extract",
      "format": "pdf"
    }
  }
}

Order a Trade Register Extract

curl -X POST "https://api.topograph.co/v2/document" \
  -H "x-api-key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"id": "doc_tre_abc123"}'

{
  "document": {
    "id": "doc_tre_abc123",
    "name": "Trade Register Extract",
    "format": "pdf",
    "url": "https://blob.core.windows.net/.../trade-register-extract.pdf"
  }
}

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Offshore Centers

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Montana coverage, pricing, and sources

Table of Contents

Data Sources

Company Identifiers

Query Identifiers

Identifiers in API Response

Search Capabilities

Quirks & Gotchas

Mappings

Company Status

Legal Forms

Other Key Persons

Statutory Filings

Data Availability

Documents

Available Documents

Example API Responses

Search by Name

Search by File Number

Company Profile

Available Documents

Order a Trade Register Extract

​Start here

Montana coverage, pricing, and sources

​Table of Contents

​Data Sources

​Company Identifiers

​Query Identifiers

​Identifiers in API Response

​Search Capabilities

​Quirks & Gotchas

​Mappings

​Company Status

​Legal Forms

​Other Key Persons

​Statutory Filings

​Data Availability

​Documents

​Available Documents

​Example API Responses

​Search by Name

​Search by File Number

​Company Profile

​Available Documents

​Order a Trade Register Extract

Start here

Table of Contents

Data Sources

Company Identifiers

Query Identifiers

Identifiers in API Response

Search Capabilities

Quirks & Gotchas

Mappings

Company Status

Legal Forms

Other Key Persons

Statutory Filings

Data Availability

Documents

Available Documents

Example API Responses

Search by Name

Search by File Number

Company Profile

Available Documents

Order a Trade Register Extract