Bloomsbury is a member church of the London Baptist Association, the Baptist Union of Great Britain, and an associate member church of the Baptist World Alliance. We support Baptist World Mission, partnering with the Dupree family currently on mission in Albania.

Ecumenically, our ministers are active in Churches Together in Westminster. We are also part of the West London chapter of Citizens UK, and have become a 'London Living Wage' Church through these networks.

Bloomsbury is pleased to promote the website www.christianity.org.uk, and our minister Simon is one of the Trustees. We work in partnership with Ekklesia, a Christian, political think tank and news service. We are also part of a network of Baptist minsters who are speaking out against LGBT+ injustice in the Baptist Union.

The church supports the work of Christian Aid and is a registered Fairtrade church. We are also part of Kairos Britain.

Bloomsbury sends representatives to British Museum community events, we play an active part in the Camden Communities partnerships, which draw together faith leaders across Camden, and the Camden Cohesion Impact Group. We have a special relationship with the local 'Dragon Hall' community centre.

We are registered as an Eco Church Congregation, and also with the ecumenical network Inclusive Church. We are part of the HeartEdge network through St Martin in the Fields.