# Washington DC

Company data from the Washington DC business register, through the Topograph API.

> **Beta**: this country is in early development. Some datapoints or documents may be missing, the integration may be unstable, prices may change without notice, and it is not covered by SLAs.

## Overview

Topograph reads DC DLCP, Business and Professional Licensing Administration and returns the company profile, legal representatives and other key persons of Washington DC companies through one API.

## Coverage

What comes back for each datapoint and document, as on the coverage matrix.

Requests run in prefill mode (fast) or verification mode (the authoritative register answer).

| Datapoint | Returned | Note |
| --- | --- | --- |
| Company profile | Yes |  |
| Legal representatives | Yes | Comes back in Verify. |
| Other key persons | Yes |  |

| Document | Returned |
| --- | --- |
| Register extract | Yes |
| Articles of association | No |
| Financials | No |
| UBO extract | No |

### Documents, as the register names them

- DC BOSS Entity Information Page (printed)

### Speed

A company profile typically comes back from the register in 1 s in prefill mode and 7 s in verification mode. These are typical observations, not a service-level commitment: set your timeouts well above them.

## Sources

The registers this country’s data comes from. Secondary sources only enrich or check what the registers return.

- **[DC DLCP, Business and Professional Licensing Administration](https://boss.dc.gov)**: Official District of Columbia business entity register maintained by the Business and Professional Licensing Administration (BPLA) of the Department of Licensing and Consumer Protection (DLCP). Covers ~505k domestic and foreign corporations, LLCs, partnerships, cooperatives, statutory trusts, and non-profits registered under DC law. Each entity is assigned a DC file number as its primary identifier: purely numeric for older entities (e.g. 571294), a letter followed by digits for many others (e.g. L00005531281), and a US-DC- prefix for recently registered ones (e.g. US-DC-LL082600020). Topograph exposes two complementary integrations: a daily open-data CSV extract published by DLCP at opendata.dc.gov (CC BY 4.0) for fast prefill lookups, and the public register API behind the Business and Occupational Service System (BOSS, boss.dc.gov) for live authoritative lookups including the full roster of people on file and the Trade Register Extract. BOSS replaced the CorpOnline portal in August 2026.
- **[GLEIF (Legal Entity Identifiers)](https://www.gleif.org/en/lei-data/gleif-golden-copy/download-the-golden-copy)** (secondary): Global Legal Entity Identifier Foundation – Legal Entity Identifier reference data

## Identifiers

Request a company by its DC File Number as the `id`, with `countryCode` set to `US-DC`. Its format, validation rules and an example value are in the full reference.

## The full Washington DC reference

The full reference covers how each datapoint is sourced and mapped, the vocabularies the API returns, the documents you can order and exact example responses. It is free with a Topograph account.

| In the full reference | Entries |
| --- | --- |
| Identifiers and formats | 2 |
| Search patterns | 2 |
| Quirks | 7 |
| Legal forms | 18 |
| Officer roles | 17 |
| Company statuses | 12 |
| Documents | 1 |
| Example responses | 6 |

- Create a free account: https://www.topograph.co/sign-up?redirect_url=%2Fcountries%2Fus-dc
- Sign in: https://www.topograph.co/sign-in?redirect_url=%2Fcountries%2Fus-dc

With a session, https://www.topograph.co/countries/us-dc.md returns the full reference as Markdown. Assistants signed in to the [Topograph Wizard MCP](https://docs.topograph.co/guides/topograph-mcp) can read it there too.

## Washington DC business register guide

[Washington DC business register guide](https://www.topograph.co/guides/business-registers-in-washington-dc-united-states): how the register works, what it publishes and which documents it issues.

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Source: https://www.topograph.co/countries/us-dc