Specifically I'm looking for:
- Agency canonical names
- Agency abbreviature/acronym
- Hierarchy of agencies e.g. Census Bureau is part of Department of Commerce
- Agency logos
- Website/social media accounts
- HQ Address/contact info
It's hard to know if this is canonical, and it's not structured, but there is the USA.gov Government Departments and Agencies page, which includes an A-Z list. It doesn't have all of the data you are looking for, but it's a start.
Here's what it has:
It'd be great to add links to logo pngs and the ability to identify parent/child relationships.
The data.gov website has a list of federal agencies and the sub-agencies in a downloadable
csv or Excel format.
It looks like:
Agency Name Abbr Subagency Name Sub Abbr Department of Agriculture USDA Department of Agriculture USDA Department/Agency Level USDA Department of Agriculture USDA Agricultural Marketing Service AMS Department of Agriculture USDA Agricultural Research Service ARS Department of Agriculture USDA Animal and Plant Health Inspection Service APHIS Department of Agriculture USDA Departmental Management DM
The above links were correct in listing the raw API locations. If you are interested in HOW to pull the data from the API and filter the catalog by agency, there is a good tutorial by the GSA and Jed Sundwall: Howto.gov DigitalGov University: Learn How to Use and Create APIs
Note that the API responses may be in JSON or XML.
I'm not sure about an API but here is a list of regular agencies:
It looks easy enough to scrape. Each agency has a detail page:
With the following info: Website, Contact via the Web, E-mail: firstname.lastname@example.org, address, and phone number
The official list of Federal agencies (and organizations) were once located in FIPS 95-1 and FIPS 95-2, known as the "Codes for the Identification of Federal and Federally-Assisted Organizations". This was replaced by a Federal Register notice to dat maintained by the U.S. Census Bureau.
Federal Agency Directory API: http://www.usa.gov/About/developer-resources/federal-agency-directory/index.shtml
Census of Government (State and Local Directory): http://www.census.gov/govs/
The U.S. Government Manual provides Agency canonical names, a hierarchy of each agency, HQ addresses, agency homepages, and names of agency leaders. It's available in XML and PDF. You can download the entire current (2013) edition, or separately download individual sections, from the Government Printing Office website.
The short answer to this question is no, although there are partial lists, like those identified above. The problem is that there's an incredibly long tail of government created entities. It sounds like you don't need a comprehensive list, however, but rather some of the larger players.
This is an ongoing area of political action. Jim Harper of the Cato Institute has written and testified on this issue, for example.
There's also a problem with agency structure and organization charts changing over time. The folks who are best at tracking this (oddly enough) is the Government Printing Office's Superindendent of Documents, who assigns government documents a SuDoC number.
User 250 mentions Jim Harper of CATO and his testimony before Congress on the issue. I've recently started working with Jim on a project called Deepbills and one of the earlier tasks for this project was compiling this data.
It's not API access but it is machine-readable and there's some scripts to handle processing of it. If you look in the catoxml-entity-lookups git repo for it you'll find a directory of source information as well as the scripts that work on it.
The real payoff, in my opinion, is the contents of the lookup table directory. They're in XML format and we use them extensively for lookups on the Deepbills tool. Consult the CatoXML reference section on entity lookup tables to see how we make use of them; since there's not canonical reference IDs you'll see that in our usage we have a timestamp to indicate when that lookup was fresh.
I think the above mention is obvious but just in case: DISCLOSURE - I am a consultant working with Jim Harper and CATO on this project and have effectively inherited this from Francis Avila, whose git repository of the data is linked above.
I have been using the list of government agencies published here: https://raw.githubusercontent.com/GSA/data/gh-pages/dotgov-domains/current-full.csv