Arts and Entertainment
Movies, Museums, Music, Anju Agarwal, Arindam Roy Choudhury, Goethals Indian Library and Research Center, Mamata Shankar Ballet Troupe?, P.C. Sorcar Jr., Raja Rammohun Roy Library Foundation, Sanon Sen & Associates, Seagull Books, The National Library, India
Business and Economy
Advertising and Marketing, Agriculture, Automotive, Computers and Internet, Conglomerates, Construction and Maintenance, Directories, Financial Services, Industrial, Legal Services
Education
Institutes and Colleges, Research Institutes, Schools, CALIBNET - Calcutta Library Network, CIS Alumni - Calcutta International School Alumni, Educational Media Research Centre, George Telegraph Training Institute, IEEE Calcutta Section, IEEE Industry Application Society Calcutta Chapter, IEEE Power Engineering Society Calcutta Chapter, Max Mueller Bhavan (Goethe Institut), Netaji Subhas Open University, P.D.Tutorials, Kolkata
Government
Embassies and Consulates, Indian Customs, Calcutta, Kolkata Police, Kolkata Traffic Police, Regional Meteorological Centre Calcutta, Regional Testing Centre Eastern Region, The India Government Mint Kolkata, The Regional Passport Office, Kolkata
Guides and Directories
Calcutta - A Virtual Tour, Calcutta - The Charming City, Calcutta - Travel Guide, Calcutta Central, Catchcal, Click Calcutta, Kolkata, Kolkata Best, Kolkatta.com, ThePlaceCal.com
Health
AMRI Apollo Hospital, ARMS India, B.M. Birla Heart Research Centre, Bellevue Clinic, Bhagirathi Neotia Woman & Child Care Centre, Cancer Centre Welfare Home And Research Institute, Child In Need Institute, Cosmetic Surgery in Kolkata, Indian Institute of Alternative Medicines, Indian Institute of Cerebral Palsy (IICP)
Science and Environment
Birds of Kolkata, Land-water interface production systems in peri-ur, The Indian Science Congress Association, Kolkata
Society and Culture
All Bengal Women's Union, Bengal Rural Welfare Service, Calcutta Foundation, Calcutta on the Net, Calcutta Online Community, City Level Programme Of Action, City of Joy Aid, History of Kolkata, Kalighat for 21st Century, Kalighat Kali Temple
Transportation
Calcutta Port Trust, Calcutta Tramways Corporation, Eastern Railway, Metro Railway