18th Century Concert Orchestra: Baroque chamber orchestra performing in 18th century costume and on 'period' instruments. Information and concert schedule.
Ashford Baroque Ensemble: Amateur orchestra in Feltham, Middx. Rehearses fortnightly on Monday evenings.
Camden Chamber Orchestra: Non-professional London chamber ensemble. Information on the orchestra, schedule of concerts and rehearsals, notice board, reviews, and ticket information.
Camerata of London: Flexible chamber orchestra and ensembles specialising in baroque, classical and new music. Information, sample programmes.
City of London Sinfonia: History of this chamber orchestra, with their concert schedule, details of their education and community programs, and information about their recordings.
English Classical Players: London-based ensemble specialising in music of the Classical period. Brief profile and contact details.
Glasgow Chamber Orchestra: Amateur orchestra. Schedule, history, friends.
I Maestri: Conductors' training orchestra. Information, conductors' and soloists' biographies, concerts.
Kensington Chamber Orchestra: Amateur orchestra performing in London. Concert schedules.
La Serenissima: Specialize in the music of Antonio Vivaldi and his contemporaries, bringing works seldom if ever heard to the concert platform. Information about their recordings, concert schedule, with reviews and biographies.
London Mozart Players: British orchestra directed by Andrew Parrott. Information about concerts, recordings, and their education programme.
London Octave: String ensemble specialising in the baroque, classical and romantic eras. Profile of members and details of performances.
London Sinfonietta: Specialises in contemporary classical music. Comprehensive site includes events, booking, archive of reviews, interviews and details of musicians.
London Soloists Chamber Orchestra: Independent chamber orchestra performing in central London. History, concert schedule, contact information.
Manchester Camerata: Chamber orchestra based in Manchester. Details of their concert schedules, their education and community work, with background information on their support and members.
Northern Baroque Orchestra: Gives two concerts per year in Rochdale. History, calendar, contact information.
Orchestra of Square Chapel: Based at the Square Chapel Centre for the Arts, Halifax. Concert schedule and photos.
Oxford Orchestra da Camera: Brief profile.
Primavera Chamber Orchestra: Information about the orchestra, with player profiles. Also includes a concert schedule, and details of their education programmes.
Sale Chamber Orchestra: Gives concerts in Sale, Manchester and surrounding area; information about concerts and the Trafford Young String Player award.
Scottish Chamber Orchestra: Profile of the orchestra, with a history, concert programme, booking details, and merchandise. Also includes their education projects, and information about the SCO Chorus.
Sinfonia Of Leeds: Amateur chamber orchestra, enjoying a close relationship with Opera North. Information on their events diary, reviews, and a discography.
St. George's Chamber Orchestra: A professional orchestra for South East London and Kent. Includes concert information, player profiles, directions, and ticket details.
Ten Tors Orchestra: Professional chamber orchestra touring Devon and Cornwall: details of concerts, new commissions, concerts and musicians.
The Academy of Ancient Music (AAM): Period instrument ensemble. News, history, biographies, discography, schedule and ticket information.
The English Concert: Baroque orchestra based in London. Includes a history, concert schedule, and discography.