The term industry is sometimes used to describe a precise business activity (e.g. automotive dealers) or a more generic business activity (e.g. manufacturing). If a company participates in multiple business activities, it is usually considered to be in the industry in which most of its revenues are derived.

CATEGORY	AVAILABLE LISTS
Agriculture, Forestry, & Fishing	43
Amusement & Recreation Services	11
Automotive Industry	13
Automotive Repair, Services	7
Business Services	31
Construction	74
Credit Institutions	8
Depository Institutions	8
Educational Services	14
Electric, Gas, & Sanitary	2
Engg, Acctg, Rsrch	25
Health Services	32
Holding & Investment Offices	3
Information Technology	14
Insurance Agents, Brokers	8
Legal Services	7
Local & Suburban Transit	2
Lodging Places	9
Manufacturing	153
Membership Organizations	5
Mining	13
Miscellaneous Repair Services	1
Motion Pictures	2
Motor Freight Transportation	17
Personal Services	7
Public Administration	3
Railroad Transportation	1
Real Estate	11
Retail Trade	77
Security & Commodity Brokerage	1
Social Services	8
Transportation Services	1
Wholesale Trade	19

Profession is defined as a paid occupation, one that involves prolonged training (especially in the liberal arts or sciences) and a formal qualification.

CATEGORY	AVAILABLE LISTS
Mailing Lists: Accountants	2
Mailing Lists: Architects	2
Mailing Lists: Doctors	6
Mailing Lists: Lawyers	2

Companies use executive titles or business titles on company officials as a means of identifying their function in the organization. The highest level executives are usually called "C-level" or part of the "C-suite", referring to the 3-letter initials starting with "C" and ending with "O"; most common of such titles are Chief Executive Officer (CEO), Chief Operations Officer (COO), and Chief Financial Officer (CFO). Technology companies tend to have a Chief Technology Officer (CTO), while companies with a strong Information Technology (IT) presence have a Chief Information Officer (CIO).

CATEGORY	AVAILABLE LISTS
C-Level Executive	8
Mailing Lists: Directors	15
Mailing Lists: Managers	14
Others	2

Establishments classified based on the country where they operate. These are further categorized based on their industry.

CATEGORY	AVAILABLE LISTS
Australia	33
Canada	186
Indonesia	1
Malaysia	15
Singapore	42
United Kingdom	115
USA	350

CATEGORY	AVAILABLE LISTS
Oracle	3
SAP	2

Establishments that operate in one of two business situations. (1) Establishments that is only open for operations during certain seasons of the year. Examples include vacation cottages, lawn care services, or snow removal services. These businesses either close down completely for part of the year or drastically scale back operations, managing only basic services such as accounts payable, during the off-season. (2) Establishments for which certain seasons of the year are far more profitable than others. A "season" in this sense may refer to the actual calendar season or to a specific business time period based on an event or holiday. One example of this type is a retail business that earns a large percentage of its annual profits during the Christmas "shopping season."

CATEGORY	AVAILABLE LISTS
Winter	0
Spring	3
Summer	1
Autumn	0