Holy Trinity Church and Mosaic are part of the Church of England, within the Diocese of Oxford and the episcopal area of Reading.
At a more local level, the church is part of the Bracknell Deanery which comprises nine parishes from Sunningdale to Binfield. They fall into two informal clusters – Bracknell and Ascot – based on geographical area. The Parish of Bracknell is in the 'Bracknell Cluster' with Binfield, Easthampstead and Warfield.
The governing body of the Bracknell Deanery is the Synod, which is responsible for oversight and overall management, and which meets five times per year.
Holy Trinity Church is the parish church of Bracknell Parish. There is a single Parochial Church Council (PCC) which meets at least ten times a year.
Various PCC sub-committees – Finance and Administration, and Buildings – meet regularly to focus on those areas of PCC business. The Parochial Church Council is the executive committee of the parish and consists of the clergy and churchwardens of the parish, together with representatives of the congregations.
The Ministry Team for the parish consists of one part-time curate, supported by lay ministers – members of the congregation who have received training and who are authorised to preach and lead worship, particularly at services held at Mosaic, a Fresh Expressions congregation.
There are two paid part-time administrators dealing with parish and financial matters respectively, and one Musical Director.