SIS has five branches in Tower Hamlets. The table below provides an overview of each of the branches.
| Branch Name with postcode | Age group catered for | In-take capacity | Total capacity | Hours of operation |
| Bow School (postcode E3 3QW) | 6 to 11 years | Can take 30 pupils in September for Class 1 | 150 | 9:30 AM to 3:00 PM |
| London Muslim & Maryam Centre (postcode E1 1QX) | 11 to 15 years | Children are usually taken from the other branches | 150 | 9:45 AM to 2:45 PM |
| Green Spring Academy Shoreditch (postcode E2 6NW) | 6 to 11 years | Can take 30 pupils in September for Class 1 | 150 | 9:30 AM to 3:00 PM |
| St Paul’s Way Trust School (postcode E3 4FT) | 6 to 11 years | Can take 30 pupils in September for Class 1 | 150 | 9:15 AM to 2:45 PM |
| Stepney Green (postcode E1 4SD) | 6 to 11 years | Can take 60 pupils in September for Class 1 | 300 | 9:30 AM to 3:00 PM |
All branches follow the same curriculum and provide the same standard of education. Staff are trained together and have opportunity to teach across different branches to ensure consistency.