South Dakota

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

South Dakota 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.

Data Sources
Company Identifiers
Search Capabilities
Quirks & Gotchas
Mappings
- Company Status
Data Availability

API access: US-SD is not yet part of the public countryCode enum. Contact us to enable it on your workspace. Requests sent with countryCode: "US-SD" will otherwise return 400 until the enum is expanded.

Data Sources

South Dakota uses a single live integration against the South Dakota Secretary of State SoS Enterprise portal (sosenterprise.sd.gov). Every request hits the register in real time. There is no open-data feed or bulk extract available for free: the register only offers a paid paper subscription for bulk database downloads, so Topograph sources data directly from the live portal. The register covers every domestic and foreign for-profit and nonprofit corporation, LLC, limited partnership, registered limited liability partnership, financial institution (bank, trust company), and trade name filed in South Dakota.

Two retrieval modes, same price. Set the mode parameter:

onboarding — a fast base profile: legal name, entity type, current status, and filing/registration date. Non-authoritative (authoritative: false in the response); it does not include the address or registered agent.
verification (default) — the full authoritative record: adds the principal office address, the registered agent (otherKeyPersons), and the bundled Trade Register Extract.

Both modes bill identically and resolve live against the register (there is no free bulk-data snapshot). Use onboarding for a fast identity/status check and verification for the complete record.

Company Identifiers

Query Identifiers

Identifier Type	Format	Example	Notes
Business ID	Two-letter prefix + six zero-padded digits (8 characters total)	`FB033693`	Assigned by the South Dakota Secretary of State. The prefix encodes the filing class (see table below).

Common Business ID prefixes:

Prefix	Filing Class
`DM`	Domestic corporation
`DC`	Domestic corporation (alternate)
`DL`	Domestic LLC
`FL`	Foreign LLC
`FB`	Foreign for-profit corporation
`NP`	Nonprofit corporation
`BK`	Bank / financial institution
`TN`	Trade name

The Business ID is exactly 8 characters. The two-letter prefix is always uppercase and the six-digit suffix is zero-padded. Both the prefix and the padding are significant. Do not strip or alter them when passing the ID to the API.

Identifiers in API Response

Identifier	Format	Example	Found In
`businessId`	Two-letter prefix + six zero-padded digits	`FB033693`	All entities

Search Capabilities

Search Type	Pattern	Example	Match Type	Expected Results
By Name	2–100 chars	`"Acme"`	Starts-with (case-insensitive)	Multiple results
By Business ID	8 characters	`FB033693`	Exact	Exact match returned first (`matchType: id`); other results may follow

Starts-with search. Name search anchors on the beginning of the legal name (case-insensitive). Use more specific queries to narrow the result set, which is capped at 50 matches.

Quirks & Gotchas

Quirk	Details
Prefix is not optional	The two-letter prefix is part of the Business ID. Passing only the numeric portion (e.g. `033693`) is not a valid identifier and will return no results.
No officers or directors	The South Dakota register does not publish officers, directors, members, or organizers on any entity detail page. The only party disclosed publicly is the registered agent, which is returned under `otherKeyPersons`.
Registered agent is not a legal representative	The registered agent receives service of process but has no statutory authority to bind the entity. It appears under `otherKeyPersons`, not `legalRepresentatives`.
No shareholder list	South Dakota does not publish individual shareholders or owner lists for any entity type. For-profit corporations carry an authorized capital figure (share count and par value) on the register record, but it is not currently surfaced in the response, and no shareholder register exists.
No activity codes	NAICS, NACE, and ISIC codes are not collected by the South Dakota business register.
Addresses are parsed	The register records the principal office address in a compact form; Topograph parses it into structured `legalAddress` fields (and geocodes it) in verification mode.
Foreign name field	Foreign entities may carry a separate foreign-registered name on the register record. It is not currently surfaced in the API response.
Term of duration	Most entities are “Perpetual”; some carry a fixed expiration date. This is on the register record but is not currently surfaced in the API response.
No open-data snapshot	Unlike many US states, South Dakota does not publish a free bulk dataset. Every request goes to the live register portal.

Mappings

Company Status

Status is read directly from the register and mapped to a Topograph standardized value.

Register Status	Standardized	Notes
Good Standing	Active	All annual reports current
Active	Active	Used on financial-institution filings
Revoked (Administrative)	Closed	Annual-report lapse; administrative dissolution
Dissolved	Closed	Voluntary dissolution
Withdrawn	Closed	Foreign entity withdrew South Dakota registration
Merged	Closed	Entity merged into another
Expired	Closed	Term of duration expired

Status values not in the table above are surfaced as-is from the register under company.status.localName and may be enriched by AI where the raw label maps to a known standardized category.

Data Availability

Onboarding mode returns only the base fields — company name, entity type / legal form, current status, and registration date. The principal office address, the registered agent, and the Trade Register Extract require verification mode.

Data Point	Available	Notes
Company name	Yes	Current legal name (both modes)
Company status	Yes	Current status, e.g. Good Standing / Withdrawn / Revoked (both modes)
Legal form	Yes	Entity type as recorded by the register, e.g. `CORP`, `LLC` (both modes)
Registration date	Yes	Filing date with the Secretary of State (both modes)
Legal address	Yes	Principal office address, parsed and geocoded — verification mode only
Registered agent	Yes	Name and address, returned as `otherKeyPersons` — verification mode only
Former legal names	Yes	Prior legal names of renamed entities, returned as `legacyLegalNames` — verification mode only
Trade Register Extract	Yes	Printed PDF of the entity record, bundled at no extra charge — verification mode only
Foreign registered name	No	Present on the register record but not currently surfaced in the response
Mailing address	No	Present on the register record but not currently surfaced in the response
Jurisdiction of formation	No	Present on the register record but not currently surfaced in the response
Term of duration	No	Present on the register record but not currently surfaced in the response
Annual report due date	No	Present on the register record but not currently surfaced in the response
Legal representatives	No	Officers, directors, and members are not published by the South Dakota register
Activity codes	No	Not collected by the register
Shareholders	No	Not published for any entity type
UBOs	No	No state beneficial-ownership register; the federal database is restricted
Annual report PDFs	Roadmap	Referenced in the entity filing history but not yet available as downloadable documents
Articles of Incorporation	Roadmap	Per-filing PDFs are deferred
Financial data	No	Not collected by the South Dakota register

Example API Responses

Search by Name

curl -X POST "https://api.topograph.co/v2/search?country=US-SD&query=Smithfield%20Packaged" \
  -H "x-api-key: YOUR_API_KEY"

[
  {
    "id": "FB033693",
    "legalName": "SMITHFIELD PACKAGED MEATS CORP.",
    "countryCode": "US-SD",
    "matchReason": { "matchType": "default" },
    "address": { "countryCode": "US-SD" }
  },
  {
    "id": "FB038869",
    "legalName": "SMITHFIELD PACKAGED MEATS SALES CORP.",
    "countryCode": "US-SD",
    "matchReason": { "matchType": "default" },
    "address": { "countryCode": "US-SD" }
  }
]

Search by Business ID

curl -X POST "https://api.topograph.co/v2/search?country=US-SD&query=BK000183" \
  -H "x-api-key: YOUR_API_KEY"

[
  {
    "id": "BK000183",
    "legalName": "FIRST PREMIER BANK",
    "countryCode": "US-SD",
    "matchReason": { "matchType": "id" },
    "address": { "countryCode": "US-SD" }
  }
]

Company Profile — onboarding mode (fast base 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-SD", "id": "FB196942", "dataPoints": ["company"], "mode": "onboarding"}'

{
  "company": {
    "id": "FB196942",
    "countryCode": "US-SD",
    "identifiers": { "businessId": "FB196942" },
    "legalName": "Smithfield Foods, Inc.",
    "registrationDate": "2021-02-18",
    "status": { "localName": "Good Standing", "active": true, "statusDetails": { "status": "ACTIVE" } },
    "legalForm": { "localName": "CORP" }
  }
}

Company Profile — verification mode (full record with registered agent)

curl -X POST "https://api.topograph.co/v2/company" \
  -H "x-api-key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"countryCode": "US-SD", "id": "FB033693", "dataPoints": ["company", "otherKeyPersons"], "mode": "verification"}'

{
  "company": {
    "id": "FB033693",
    "countryCode": "US-SD",
    "identifiers": { "businessId": "FB033693" },
    "legalName": "SMITHFIELD PACKAGED MEATS CORP.",
    "legacyLegalNames": ["JOHN MORRELL & CO."],
    "registrationDate": "2009-08-04",
    "status": { "localName": "Good Standing", "active": true, "statusDetails": { "status": "ACTIVE" } },
    "legalForm": { "localName": "CORP" },
    "legalAddress": {
      "addressLine1": "200 Commerce Street",
      "city": "Smithfield",
      "postalCode": "23430",
      "region": "Isle of Wight County",
      "state": "Virginia",
      "countryCode": "US",
      "latitude": 36.98475035,
      "longitude": -76.63012801121371
    }
  },
  "otherKeyPersons": [
    {
      "entityId": "company_001",
      "type": "company",
      "role": { "localName": "Registered Agent", "standardized": "Other" },
      "company": {
        "countryCode": "US",
        "legalName": "C T CORPORATION SYSTEM",
        "legalAddress": {
          "addressLine1": "319 S COTEAU ST",
          "city": "PIERRE",
          "postalCode": "57501-3187",
          "region": "SD",
          "countryCode": "US"
        }
      }
    }
  ]
}

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South Dakota coverage, pricing, and sources

Table of Contents

Data Sources

Company Identifiers

Query Identifiers

Identifiers in API Response

Search Capabilities

Quirks & Gotchas

Mappings

Company Status

Data Availability

Example API Responses

Search by Name

Search by Business ID

Company Profile — onboarding mode (fast base profile)

Company Profile — verification mode (full record with registered agent)

​Start here

South Dakota coverage, pricing, and sources

​Table of Contents

​Data Sources

​Company Identifiers

​Query Identifiers

​Identifiers in API Response

​Search Capabilities

​Quirks & Gotchas

​Mappings

​Company Status

​Data Availability

​Example API Responses

​Search by Name

​Search by Business ID

​Company Profile — onboarding mode (fast base profile)

​Company Profile — verification mode (full record with registered agent)

Start here

Table of Contents

Data Sources

Company Identifiers

Query Identifiers

Identifiers in API Response

Search Capabilities

Quirks & Gotchas

Mappings

Company Status

Data Availability

Example API Responses

Search by Name

Search by Business ID

Company Profile — onboarding mode (fast base profile)

Company Profile — verification mode (full record with registered agent)