TMSS has been firstly know as Thengamara Mohila Sangha from 1694 as a Social Development Organization.
On 1980 Prof. Dr. Hosne-Ara Begum reforms the organization as Thengamara Mohila Sabuj Sangha (TMSS).
(1) Institution Building,
(2) Credit Program (RMC, UMC, MFTS, UPP, MFMSFP, LRP, RNPPO, SAHOS, RESCUE, EFRRAP),
(3) Micro Enterprise (ME),
(4) Agriculture Sector Micro credit.
(5) Health, Family Planning and Nutrition,
(6) Community Hospital & Satellite Clinics,
(7) Acid Survivors Program (ASP),
(8) Smile Train Rafatullah Community Hospital (RCH) Cleft Project,
(9) Public Private Partnership (PPP),
(10) Sanitation Program