| Date | Attainment & Milestone |
| 2012 |
| 21 Sep |
STEi Institute awarded BizSafe certificate |
| 25 May |
STEi Institute renewed EduTrust Certification (Provisional) |
| 18 May |
STEi Institute renewed ISO 9001: 2008 Quality Accreditation |
| 4 Apr |
Sirius Training & Education Institute (STEi) Pted Ltd changed its name to STEi Institute Pte Ltd |
| 23 Mar |
STEi signed Memorandum of Articulation with the Curators of the University of Missouri on behalf of the University of Missouri Kansa City to conduct pre-master in Finance and Accounting |
| 2011 |
| 17 Nov |
STEi signed Articulation Agreement with Charles Sturt University to offer homeland security & counter terrorism programme |
| 5 Oct |
STEi was one of the few recipients of the Singapore Outstanding Enterprise Award in 2011 |
| 21 Sep |
STEi started maritime training programmes |
| 23 May |
STEi renewed EduTrust Certification (Provisional) |
| 8 Apr |
STEi Official Opening Ceremony of new campus in Bylands Building |
| 1 Mar |
STEi shifted its campus to Bylands Building |
| 2010 |
| 28 Jul |
STEi shifted its corporate office to Mosque Street |
| 15 Jul |
STEi Institute Pte Ltd changed name to Sirius Training & Education Institute (STEi) Pte Ltd |
| 31 May |
STEi Institute renewed ISO 9001: 2008 Quality Accreditation |
| 18 May |
STEi Institute attained EduTrust Certification (Provisional) |
| 13 Jan |
STEi Centre Pte Ltd changed name to STET Institute Pte Ltd |
| 2009 |
| 9 Jul |
STEi Centre awarded CaseTrust Accreditation |
| 15 Apr |
STEi Centre secured ISO 9001: 2008 Quality Accreditation |
| 14 Apr |
STEi Centre approved as a registered Training Centre for LCCI |
| 13 Apr |
STEi Centre approved as a registered Training Centre for City & Guilds |
| 9 Apr |
STEi Centre successfully registered with Ministry of Education |
| 3 Feb |
STEi Centre Pte Ltd (STET CTR) was incorporated as a wholly owned subsidiary of ST Education & Training Pte Ltd (STET) |