BBC Symphony Orchestra  
   Founded by Adrian Boult in 1930 as London's first permanent orchestra, and now the flagship orchestra of the BBC, with a commitment to new music. Includes a history, concert schedule, and a profile of music they have premiered.
   http://www.bbc.co.uk/orchestras/so/

Oxford Philomusica  
   Orchestra in residence at the University of Oxford; with their profile, concert diary, ticket information, reviews, and biographies. Also includes details of their International Piano Competition.
   http://www.oxfordphil.com/

London Metropolitan Orchestra  
   Information about this ensemble and its work in film and television. Details of their live performances, news, discography, and player profiles.
   http://www.lmo.co.uk/

English Northern Philharmonia  
   Brief profile of the resident orchestra of Opera North, which also performs independently as a symphony orchestra in Yorkshire and the surrounding area. Includes a discography.
   http://www.orchestranet.co.uk/engnophi.html

London Symphony Orchestra  
   Resident orchestra at The Barbican. Information on their concert schedule, recordings, and ticketing.
   http://www.lso.co.uk/

City of Birmingham Symphony Orchestra  
   Profile of the orchestra and members, details of their community education programme, and a history. Includes concert schedule and ticket information.
   http://www.cbso.co.uk/

Hallé Orchestra  
   Britain's longest-established professional symphony orchestra. Official site with contact details, membership information, history, and concert listings.
   http://www.halle.co.uk/

Philharmonia Orchestra  
   Resident orchestra at the Royal Festival Hall. Concert and tour schedules, with information on theri recordings and their music education program.
   http://www.philharmonia.co.uk/

London Pops Orchestra  
   Presents programmes of popular music from stage and screen world-wide. Concert and recording diary, and booking information.
   http://www.londonpops.co.uk/

London Philharmonic Orchestra  
   History of the ensemble, with a concert schedule, news and reviews. Includes information on their education programme, and their support.
   http://www.lpo.org.uk/

Ulster Orchestra  
   History of the Belfast-based orchestra. Includes their concert and event schedule, and information about their recordings and substantial community education programs.
   http://www.ulster-orchestra.org.uk/

Royal Liverpool Philharmonic Orchestra  
   Schedule of concerts by the RLPO and choirs at the Philharmonic Hall, with news and press releases.
   http://www.liverpoolphil.com/

Amadeus Orchestra  
   Training orchestra for young professionals and music students. Site includes news, reviews and details of forthcoming performances.
   http://www.amadeusorchestra.co.uk/

Bournemouth Symphony Orchestra  
   Concert listing, with booking information. Includes information on their history, community and education projects, sponsorship and membership details.
   http://www.bsolive.co.uk/

Southern Sinfonia  
   Based in Newbury, Berkshire, providing music education, master classes and entertainment. Includes their concert diary and ticket details.
   http://www.southernsinfonia.co.uk/

The Orchestra of the Age of Enlightenment  
   A period instrument orchestra playing baroque, classical and early romantic music on original instruments. Principal guest conductors are Sir Simon Rattle and Frans Brüggen. Concert details and discography.
   http://www.oae.co.uk/

Milton Keynes City Orchestra  
   Site provides list of forthcoming concerts, news, reviews and profiles of some members of the orchestra.
   http://www.mkco.org/

Royal Scottish National Orchestra  
   Information about Scotland's national symphony orchestra and its chorus, including concerts, musicians, education and sponsorship; the "news" section includes collected reviews of concerts and CDs.
   http://www.rsno.org.uk/

The Welsh Sinfonia  
   Concert guide, repertoire, overview of the orchestra and information on their education services. (Cymraeg and English.)
   http://welshsinfonia.co.uk/

BBC National Orchestra of Wales  
   Information about the orchestra, including its concert and broadcast schedule, education and community programme, and contact details.
   http://www.bbc.co.uk/wales/now/

BBC Scottish Symphony Orchestra  
   Founded in 1935 as the first full-time orchestral ensemble in Scotland. Includes a profile of the orchestra, with details of their concert schedule, recordings, reviews, and tickets.
   http://www.bbc.co.uk/scotland/musicscotland/bbcsso/

BBC Philharmonic Orchestra  
   Based in Manchester. Information about concerts, CD releases, education work and the orchestra itself.
   http://www.bbc.co.uk/orchestras/philharmonic/

BBC Concert Orchestra  
   Based at the Golders Green Hippodrome in London. Profile of the orchestra, and their current programme.
   http://www.bbc.co.uk/orchestras/co/

Royal Philharmonic Orchestra  
   Founded by Sir Thomas Beecham, and based at the Royal Festival and Royal Albert Halls, and tours throughout the UK. Concert details, history, information about their community work, and online purchase of tickets and recordings.
   http://www.rpo.co.uk/

Brighton Philharmonic Orchestra  
   Brighton's resident professional orchestra. Information about their concert schedule, booking information, and their supporters.
   http://www.brightonphil.org.uk/

The King's Consort  
   Period instrument orchestra; includes orchestra profile, concert and recording calendar, online sales for their CDs, and information on sponsors and friends program.
   http://www.tkcworld.com/

New London Soloists Orchestra  
   Professional orchestra based in London and the South East: concert calendar, online ticket sales.
   http://www.nlso.co.uk

Norfolk Symphony Orchestra  
   Includes concert calendar, news, reviews, program notes.
   http://web.ukonline.co.uk/~tchaik/

London Shostakovich Orchestra  
   Currently embarked on a complete cycle of Shostakovich's symphonies: includes details of performances and recordings, programme notes and articles.
   http://www.shostakovich.com/

South Yorkshire Symphony Orchestra  
   Sheffield: Concert calendar and booking information.
   http://www.syso.co.uk/orchestra.html