Congressional Yellow Book
The Congressional Yellow Book lists 541 Member Offices, 221 Committees and Subcommittees (including Standing, Select, and Joint), 32 Leadership Organizations, 59 Member Organizations (Caucuses), and 9 Congressional Support Agencies. In addition, 15 Congressional Officers are listed; these officials are usually voted in by the entire membership or appointed by the Senate Majority Leader/Speaker.

Congressional Leadership Directory® Online & The Leadership Library®
The Congressional Leadership Directory® Online and The Leadership Library® both contain 541 Member Offices, 229 Committees and Subcommittees (including Standing, Select, and Joint), 37 Leadership Organizations, 274 Member Organizations (Caucuses), 250 Leadership PACs, 290 Congressional Campaigns, 10 Congressional Support Agencies, 28 Congressional Boards and Commissions and 29 Congressional Staff Associations. In addition, 15 Congressional Officers are listed; these officials are usually voted in by the entire membership or appointed by the Senate Majority Leader/Speaker.

Federal Yellow Book
The Federal Yellow Book lists all 15 federal departments and 90 independent agencies. We use the United States Government Manual as our guide. In most departments, the listings are to the branch level; however, depending on the organizational structure, we may list down to the section chief or team leader level. Each department and agency is its own organization. Some departments such as Commerce and Health and Human Services have Bureaus and Administrations that could be considered independent agencies.

Federal Leadership Directory® Online & The Leadership Library®
The Federal Leadership Directory® Online and The Leadership Library® both contain all 15 federal departments and 90 independent agencies, including 171 federal advisory committees and 1,200 federal programs covering over 3,000 federal advisory committee members and 2,800 federal program managers. We use the United States Government Manual as our guide. In most departments, the listings are to the branch level; however, depending on the organizational structure, we may list down to the section chief or team leader level. Each department and agency is its own organization. Some departments such as Commerce and Health and Human Services have Bureaus and Administrations that could be considered independent agencies.

State Yellow Book
The State Yellow Book contains the executive and legislative branches for all 50 states, the four U.S. territories, and the District of Columbia. The executive branch listings include 1,099 departments, 629 commissions, 634 boards, 161 authorities, 96 councils, and other major offices. The Legislative Section lists: State Senate and House Leadership, 2,037 State Senators, 5,494 State Representatives, 2,015 Committees (including standing and some select committees), and 187 Legislative Agencies.

State Content in The Leadership Library®
Our database contains the executive and legislative branches for all 50 states, the four U.S. territories, and the District of Columbia. The executive branch listings include 1,099 departments, 643 commissions, 666 boards, 165 authorities, 102 councils, and other major offices. The Legislative Section lists: State Senate and House Leadership, 2,037 State Senators, 5,494 State Representatives, 2,257 Committees (including standing, joint, and some select committees), and 190 Legislative Agencies.

Municipal Yellow Book
The Municipal Yellow Book features information on 247 cities with a population above 100,000 people, according to U.S. Census Bureau data, and an additional 73 cities with population figures below 100,000, for a total of 320 cities and towns. We list all state capitals, regardless of population.

The Municipal Yellow Book also contains 145 counties: the top 126 counties have a population above 375,000, and an additional 19 with population figures below 375,000 are listed. In the case of counties with no formal government, the largest city within that county is included. In the case of combined city/county governments, the information is listed in the cities section. The Municipal Yellow Book also contains all of the departments and offices that make up the government of the cities and counties that are included in our listings. This includes 426 city attorneys, 296 city clerks, 158 county attorneys, 98 county clerks, and over 250 county executive and mayoral staff Members. In addition, 74 public and quasi-public authorities are listed.

Municipal Data in The Leadership Library®
Our database contains information on 363 city and town listings, 247 of which have a population greater than 100,000. We list all of the state capitals, regardless of population. Our database also contains 214 counties: the top 126 counties have a population above 375,000, and an additional 88 with population figures below 375,000 are listed. In the case of counties with no formal government, the largest city within that county is included. In the case of combined city/county governments, the information is listed in the cities section. Our database also contains all of the departments and offices that make up the government of the cities and counties that are included in our listings. This includes 436 city attorneys, 304 city clerks, 188 county attorneys, 127 county clerks, and over 280 county executive and mayoral staff Members. In addition, 77 public and quasi-public authorities are listed.

Federal Regional Yellow Book
The Federal Regional Yellow Book lists the major components of the 15 federal departments and 46 independent agencies that are outside of the Washington metropolitan area. The listings include regional/district and field offices, military installations, 180 U.S. embassies.

Judicial Yellow Book & The Leadership Library®
The Judicial Yellow Book and The Leadership Library® both contain all federal judges that serve on the U.S. District Courts, U.S. Courts of Appeals, and the U.S. Supreme Court. In addition, we list the state appellate judges for all 50 states. There are 2,200 federal judges and 1,300 state judges listed in the Judicial Yellow Book and The Leadership Library®.

Corporate Yellow Book & The Leadership Library®
The Corporate Yellow Book and The Leadership Library® both contain public and private U.S. companies with revenues over $500 million that are manufacturers, service businesses, or utilities. The directory also lists high-growth companies selected from generally accepted published rankings with revenues of at least $100 million, as well as leading consulting companies.

Financial Yellow Book & The Leadership Library®
The Financial Yellow Book and The Leadership Library® both contain public and private companies that represent the following categories of the financial industry:

	The top Accounting Firms
	Leading Brokerage Firms ranked by total consolidated capital
	Captive Finance Companies based on importance or distinction within their field
	Commercial Banks and Bank Holding Companies with assets over $2 billion
	Commercial Finance Companies and Finance Leasing Companies based on importance or distinction within their field
	Consumer Finance Companies based on importance or distinction within their field
	Credit Unions with assets over $1 billion
	National Exchanges and Markets
	Financial Institutions that are part of the U.S. federal government, are wholly owned corporations of the U.S. government, or are fully regulated by the U.S. government
	Leveraged Buyout (LBO) Firms with capital under management over $1 billion and distinction within the field
	Life and Health Insurance Companies (including holding companies) with assets over $3 billion
	Mergers and Acquisitions Specialists with assets over $500 million
	Money Management Companies (including Pension and Mutual Fund Managers) ranked by assets managed
	Mortgage Companies ranked by amount of mortgage originated or serviced
	Private and Family Investment Firms based on importance or distinction within their field
	Property and Casualty Insurance Companies (including holding companies) with premiums over $500 million
	Reinsurance Companies based on importance or distinction within their field
	Real Estate Investment Trusts (REITS) and/or Real Estate Investment Companies ranked by market capitalization
	Securities Underwriters whose common stock proceeds exceed $50 million; Municipal principal amount $500 million or higher
	Thrifts (Savings Institutions) and Thrift Holding Companies with assets over $1 billion
	Venture Capital Firms ranked by number of initial deals

News Media Yellow Book
The News Media Yellow Book covers the national news media in the top media markets that gather and produce their own news. The categories of media outlets listed are:

	The major news wires, newspaper chains and feature syndicates
	The top 160 major daily newspapers
	The major television, radio and cable networks and programs
	The television and radio stations and programs in the top 30 markets
	Syndicated television and radio news and interview programs
	The leading and influential 800 consumer and trade magazines and newsletters based on circulation and reputation
	Foreign media that have bureaus in the U.S.
	Leading publishers of the magazines and newsletters listed in the News Media Yellow Book
	Biographical appendix of the influential journalists, writers and commentators working in the U.S. media
	The major news wires, newspaper chains and feature syndicates

News Media Leadership Directory Online & The Leadership Library®
The News Media Leadership Directory Online and The Leadership Library® both contain the national news media in the top media markets that gather and produce their own news. The categories of media outlets listed are:

	The major news wires, newspaper chains and feature syndicates
	The top 175 major daily newspapers
	The major television, radio and cable networks and programs
	The television and radio stations and programs in the top 30 markets
	Syndicated television and radio news and interview programs
	The leading and influential 850 consumer and trade magazines and newsletters based on circulation and reputation
	Foreign media that have bureaus in the U.S.
	Leading publishers of the magazines and newsletters listed in the News Media Yellow Book
	Bloggers who comment on political and media issues, and who are considered leading and influential based on popularity and number of readers

Associations Yellow Book & The Leadership Library®
The Associations Yellow Book and The Leadership Library® both contain trade and professional associations operating on a national level. Organizations must be vocational in nature (members practice similar or allied trades or professions) and have an annual operating budget of at least $2 million. Exceptions to these parameters have been made for organizations that are of political, social, or economic importance.

Law Firms Yellow Book & The Leadership Library®
The Law Firms Yellow Book and The Leadership Library® both contain the largest U.S.-based firms that practice corporate law (as opposed to firms practicing personal injury), and have at least 40 attorneys firm wide.

Government Affairs Yellow Book & The Leadership Library®
The Government Affairs Yellow Book and The Leadership Library® both contain the government affairs experts who represent the interests of leading corporations and their subsidiaries and divisions; financial institutions and their subsidiaries; professional associations; the major U.S. labor unions; and interest groups. Organizations must have a full-time government affairs staff, a political action committee, or federal or state representation. For the purposes of the directory, government affairs includes not only those individuals who deal directly with legislators and policy makers, but also other members who research and analyze the government's legislative proposals and help formulate the organization's response to these proposals. Also profiled are government departments that have legislative and intergovernmental affairs personnel, including federal government divisions, U.S. states and territories, cities, counties, and municipal authorities. The directory also includes law, advocacy, and consulting firms that represent organizations listed in the directory. Organizations must have a lobbying or legislative practice or staff.

Foreign Representatives in the U.S. Yellow Book & The Leadership Library®
The Foreign Representatives in the U.S. Yellow Book and The Leadership Library® both contain non-U.S corporations and financial institutions and their major U.S. offices; foreign nations, including embassies, consulates, and permanent missions; intergovernmental organizations; foreign press outlets; and international law firms and their U.S representative offices.

Nonprofit Sector Yellow Book & The Leadership Library®
The Nonprofit Sector Yellow Book and The Leadership Library® both contain the following types of organizations:

	Private, community, and corporate-sponsored foundations with total net assets of over $200 million
	Public and private 4-year colleges and universities and military academies
	Art museums, natural history museums, children's museums, science centers, aquariums, zoos, and botanical gardens (inclusion is based on attendance numbers)
	Performance arts groups and centers including opera houses, symphony orchestras, and ballet and dance groups (inclusion is based on artistic reputation and budget size)
	Medical institutions including teaching hospitals, medical centers, and health systems (inclusion is based on general reputation, physician expertise, and number of beds)
	Public libraries and library systems (state, city, and county libraries), private libraries, and presidential libraries (inclusion is based on number of volumes within select geographical areas)
	Private elementary and secondary schools (inclusion is based on endowment)
	Charitable service organizations providing social and community services, humanitarian aid, and disaster relief services, as well as voluntary health agencies, such as the American Cancer Society and the American Heart Association (inclusion is based on revenue)