| Vendor Type | Name | Address | State | District | Year of Establishment | Key Project |
| Architects | PLAN VISION | SANTOSHPUR, JADAVPUR, KOLKATA | West Bengal | Kolkata | 2010 | various landmark project |
| Contractors | UNICA ENGINEERS AND CONTRACTOR PVT LTD | 521, MADURDAHA PO- E.K.T.P KOLKATA Kolkata WB 700107 | West Bengal | Kolkata | 2013 | various landmark project |
| Engineers | SPA CONSULTANT- STRUCTURAL CONSULTANT | 34, RAMMOHAN DUTTA ROAD,
KOLKATA-700 020.
| West Bengal | Kolkata | 2000 | various landmark project |
| Engineers | INDCON- ELECTRICAL CONSULTANT | 31/A/6, Durga Prasanna Paramhansa Road
Kolkata - 700 047
| West Bengal | Kolkata | 1995 | various landmark project |
| Other | F9 Planet | Nabapally1/2|
Kolkata | West Bengal | INDIA | Pin. - 700131
| West Bengal | Kolkata | 2012 | various landmark project |
| Engineers | UNIQUE ENGINEERING CONSULTANCY PVT LTD- PLUMBING CONSULTANT | S.R.K. Emerald
12, Russa Road (East)
2nd Lane, 1st Floor
Kolkata-700033
| West Bengal | Kolkata | 2010 | various landmark project |
| Engineers | TTS Consultants- Fire Consultant | kolkata | West Bengal | Kolkata | 2000 | various landmark project |
| Other | AVANT GARDE OMNIMEDIA PVT LTD | 16A CHOWRINGHEE MANSIONS, 30 J L NEHRU ROAD, LIFT NO. 3, 2ND FLOOR KOLKATA WB 700016 | West Bengal | Kolkata | 2008 | various project |