= 52 / HTA ARCHITECTS Last year: 45 Number of architects: 44 Female architects: 27 per cent After a spurt of growth which saw HTA leapfrog from 74th to 45th place in last year's AJ100, this housing and regeneration specialist has plateaued in the league tables. Its number of architects hasn't risen, although the proportion of women is an encouraging 27 per cent. On the project front, HTA is masterplanning a 3,500 Barratt Homes scheme in Telford - the UK's largest new community development.
= 52 / MAKE Last year: 96 Number of architects: 44 Female architects: 30 per cent Ken Shuttleworth's practice landed in the AJ100 at 96 last year. Pundits predicted Make would blossom quickly and, sure enough, the firm has leapt up the charts. This has been fuelled by high-profile wins like the redevelopment of Middlesex Hospital in London's Fitzrovia and a massive office complex in Glasgow. But the sweetest win must surely be Cherry Orchard Road towers in East Croydon.
= 52 / PURCELL MILLER TRITTON Last year: 53 Number of architects: 44 Female architects: 27 per cent Lords reform is top of the agenda for this highly respected conservation name, now transforming a Grade II-listed Arts and Crafts building next to Westminster into offices for the Upper House. The busy year saw the firm open an Oxford operation - taking its UK offices to nine - and win approval for a £20 million development within Blackburn Anglican Cathedral's precinct.
55 / BOND BRYAN ARCHITECTS Last year: 70 Number of architects: 43 Female architects: 12 per cent One of the largest names in the North, Bond Bryan has galvanised its position as an education leader. Projects range from the David Young Community Academy in Leeds - the first City Academy to specialise in the built environment - to a £45 million project for York College (currently the further education sector's largest ever new-build project) and a £16 million lowcarbon building for Leicester College.
= 56 / HOLDER MATHIAS ARCHITECTS Last year: 77 Number of architects: 42 Female architects: 19 per cent A bumper year in which the Welsh firm rocketed 22 places to 55, thanks to major project completions such as the Victoria Wharf residential scheme in Cardiff Bay, and the regeneration of St Stephen's in Hull city centre. Holder Mathias grew 20 per cent over the last 12 months and expanded its London office space by a third. Moreover, profitability has increased three-fold for the fifth year running.
= 56 / HKR ARCHITECTS Last year: 96 Number of architects: 42 Female architects: 17 per cent A phenomenal 40-place leap for this Manchester-, Dublin- and London-based practice. HKR's projet du jour is the £90 million Aurora skyscraper in Great Victoria Street, Belfast. If this 109m-high colossus wins planning consent it will be Northern Ireland's tallest tower.
Another project to watch is Galleon Quay, a £16 million residential block in London's Tower Hamlets.
= 56 / HOPKINS ARCHITECTS Last year: 63 Number of architects: 42 Female architects: 36 per cent The bulk of this practice's new work is in the USA and Dubai. Yale University's School of Forestry and Environmental Studies is due for completion in 2008, and a chemistry building for Princeton University completes in 2010. A 30-strong Dubai office, headed by Simon Fraser, has now opened: projects include Gate Village, a mixed-use scheme adjacent to Dubai's World Trade Centre with a oor space three times the size of Canary Wharf's.
= 56 / SQUIRE & PARTNERS Last year: 50 Number of architects: 42 Female architects: 21 per cent It is perhaps telling that this practice has released a greatest hits collection, Squire and Partners 02 - 07, while it bumps down the AJ100. From a 2003 high of 24th place, the firm now sits at 56. English Heritage continues to press Islington Council to reject the firm's 39-storey tower, bordering the City of London.
= 60 / DAVID CHIPPERFIELD ARCHITECTS Last year: 48 Number of architects: 41 Female architects: 39 per cent Chipperfield's lowest position in the AJ100 since 2002.
Nevertheless, it's been an exciting year for the practice, marked by an ongoing battle with Richard Rogers and others to mastermind the £80 million revamp of the British Museum in central London. A £25 million contract to renovate and extend the Aust Agder Museum of Cultural History in Arendal signalled Chipperfield's fi rst excursion into Norway.
= 61 / ESA ARCHITECTURE Last year: N/A Number of architects: 40 Female architects: 18 per cent A hectic year for this new name to the AJ100: its £12 million Camden Market redevelopment won planning while the Brewery, a £20 million mixed-use development in Cheltenham, reached completion.
Turnover has increased steadily at around 12 per cent over the last five years, claims creative director Nic Sampson. 'Most work is in the South East', he adds, 'but projects are on site in Leeds, Cheltenham, Birmingham and Manchester.'
= 61 / FARRELLS Last year: 53 Number of architects: 40 Female architects: 60 per cent Terry Farrell's name emblazons a Hullbased train, recognising his regeneration efforts in the city. The accolade contrasted sharply with CABE's panning of the £70 million extension to Edinburgh's International Conference Centre. Farrells' plans for a Thames Gateway national park hit the buffers, but a masterplan for Coventry won praise and his £500 million plan for Leeds is on track.
= 61 / SIDELL GIBSON ARCHITECTS Last year: 89 Number of architects: 40 Female architects: 15 per cent A great year for Sidell Gibson, reflected in its 28-place leap to 61st position. Of its many collaborations on the go, the most notable is One New Change tower with Jean Nouvel - a City of London mixed-use development completing in 2010. Other headline-grabbing designs include 1,000 zero-carbon homes in Ashford for ZEDHomes, a new office tower in Croydon, and Magistrates' Courts in Cambridge and Bracknell.
= 61 / STEPHEN GEORGE AND PARTNERS Last year: 59 Number of architects: 40 Female architects: 13 per cent A year in which Stephen George and Partners demonstrated unswerving commitment to sustainable architecture and staff edification. Its new Loughborough Courthouse secured an excellent BREEAM rating. A three-day architectural tour of Berlin for the firm's entire workforce took place in October, followed in February by a sustainability development day.
= 65 / DLG ARCHITECTS Last Year: 50 Number of architects: 39 Female architects: 21 per cent A quiet year on the AJ news pages belies DLG's steady expansion. The firm is recruiting for projects as diverse as the 1.5km-long Waterfront Quarter in Huddersfield - which won planning this year - and the Nailloux shopping centre, Toulouse. Other schemes include a refurbishment of the Grade II-listed Cornhill office building in London's Square Mile and the £130 million Atrium - a mixed-use project in Camberley town centre, Surrey.
= 65 / HLM ARCHITECTS Last year: 56 Number of architects: 39 Female architects: 15 per cent With cynicism clouding PFI schools design, this firm is aiming to silence critics with a £320 million Building Schools for the Future initiative in Sheffield. In Wales, its Cardiff operation has its hands full with a £1 billion Defence Training Academy in St Athan - the largest public/private partnership investment in Wales to date.
67 / JACOBS Last year: 59 Number of architects: 38 Female architects: 11 per cent A gripping 12 months: the firm merged with Reading practice Crispin Wride Architectural Design Studio and added six architects to its 38-strong team. Education, regeneration, and local/central government remain the focus: Jacobs cut the ribbon on the £75 million Diamond Synchrotron laboratory near Oxford and a £45 million National Air Traffic Control Centre in Scotland.
68 / JESTICO + WHILES Last year: 83 Number of architects: 37 Female architects: 22 per cent Climbing from 83rd to 68th position, Jestico + Whiles' new AJ100 high is testament to a bustling year. Wins include apartments in Bratislava and a retail development in Romania. Work at home continues with the Old Spitalfields market and a mixed-use development in Southend.
= 69 / BARTON WILLMORE Last year: 70 Number of architects: 36 Female architects: 19 per cent Life's a game of snakes and ladders for Barton Willmore, which has climbed one rung after last year's 14-place slump to 70th position. The firm has winged its way over to Dubai, where it is constructing the world's largest freeflight aviary. Back home, the £40 million Chelmsley Wood town centre regeneration has finally started on site after six years in development.
= 69 / DEVEREUX ARCHITECTS Last year: 56 Number of architects: 36 Female architects: 19 per cent Last month the firm was gobbled up by Republic of Ireland-based PM Group, and now operates as a standalone practice within the multi-disciplinary organisation. Prior to the merger, Devereux had dropped 13 places in the AJ100, despite pursuing sector and geographic diversification, with schemes in the Middle East and the Caribbean, as well as reaping the benefits of its traditional specialism - home-based health commissions.
= 69 / GHM CONSULTANCY GROUP Last year: 72 Number of architects: 36 Female architects: 19 per cent GHM's architectural arm, GHM Rock Townsend, continues its focus on education; having formed Mentor with FaulknerBrowns, it is on board a Leeds-based Building Schools for the Future initiative. An extensive redevelopment of Westminster University's Cavendish Street campus is now open for business and its initial scheme for Northampton PFI Schools - one of the UK's largest PFI projects - is done and dusted.
= 69 / GRIMSHAW Last year: 89 Number of architects: 36 Female architects: 31 per cent Developers pulled the plug on the Minerva tower. Overseas, clients have been a little kinder - a success being the expansion of Southern Cross station in Australia. Last month, plans for a £67 million extension to the firm's Eden Project emerged.
= 69 / HAWKINS\BROWN Last year: 59 Number of architects: 36 Female architects: 44 per cent Roger Hawkins and Greg Moss took part in the 1,500km charity cycle ride to MIPIM for Architects for Aid. They were powered by news that the practice had been appointed lead consultant on the redevelopment of London's Parliament Square. The firm is also working at Sheffield's Park Hill.
= 69 / RH PARTNERSHIP ARCHITECTS Last year: 77 Number of architects: 36 Female architects: 17 per cent With projects for Anglia Ruskin University, Colchester Institute and Essex University on the go, education remains RH Partnership's bread and butter. That said, housing is increasingly significant - evidenced by a £60 million scheme for Brighton. Burgeoning workloads across the South East convinced RH to open a new London office this year, creating a bridge for its Brighton and Cambridge operations.
= 75 / COOPER CROMAR Last year: 63 Number of architects: 35 Female architects: 14 per cent After last year's blip in turnover, Cooper Cromar has bounced back. A clutch of new work has prompted a move to new Edinburgh premises and the addition of three architects, taking its tally to 35. The jewel in the contracts crown is a £100 million redevelopment of St Enoch Square, Glasgow, which has won preliminary planning.
= 75 / RTKL UK Last year: 80 Number of architects: 35 Female architects: 26 per cent New to the AJ100 last year, RTKL UK has climbed five places in our list. This genuinely global practice - it has 11 offices across North America, Europe and Asia - is consolidating its UK healthcare work with a massive retail and commercial project in Croydon, south London. The firm is also edging into leisure and entertainment - its most headline-grabbing project being the O 2 Arena, formerly known as the Millennium Dome.
= 75 / DLA ARCHITECTURE Last year: 63 Number of architects: 35 Female architects: 29 per cent This firm has never been far from the AJ headlines: just before Christmas it was parachuted into the exCarey Jones Northern Ballet Theatre project in Leeds. Work is also continuing on its massive £175 million Marsh Way regeneration scheme in Wakefield - a collaboration with David Adjaye.