= 26 / JM ARCHITECTS Last year: 17 Number of architects: 66 Female architects: 27 per cent One story dominated JM Architects' horizon - a £4 million legal battle over alleged negligence and breach of contract at a London children's nursery. Current projects include a £4 million extension to Croydon's Virgo Fidelis girls' school. However, this hasn't prevented the firm slipping nine places in the AJ100.
= 26 / LEWIS AND HICKEY Last year: 29 Number of architects: 66 Female architects: 14 per cent Bognor Regis is poised to shed its dreary hi-de-hi holiday camp image if Lewis and Hickey's plan for a £100 million redevelopment gets the go-ahead - the scheme includes a new theatre, cinemas, shops and two residential towers. This 100year-old practice jumps three places up the chart, having taken on five new architects since 2005. Female architects still remain thin on the ground at just 14 per cent.
= 26 / SCOTT BROWNRIGG Last year: 25 Number of architects: 66 Female architects: 17 per cent The firm merged with interior designer Canvas Creative and joined the £16 billion St Athan Defence Training Academy project. Fingers are crossed for Reading's Station Hill, a mixed-use tower scheme featuring 130,000m 2 of offices, shops and cafés, which went to planning in February, despite reservations from CABE.
31 / RMJM Last year: 19 Number of architects: 65 Female architects: 12 per cent RMJM is in calmer waters after being buffeted by the Scottish Parliament tempest. It's been appointed to Napier University's £55 million Sighthill campus in Edinburgh, and a £35 million HQ for York Council in the Hungate development. Its Princes Dock Tower, Liverpool has been cut down in height from 37 to 30 storeys, however, following a damning report from CABE.
= 32 / 3D ARCHITECTS Last year: 41 Number of architects: 63 Female architects: 19 per cent It's been an expansive year for 3D, with the opening of Manchester and London operations and the acquisition of hospitality specialist Ferrier Crawford Architects. Some 17 architects have been added to the workforce, fuelling 3D's nine-place hike up the charts. Noteworthy projects include Gordon Lamb House, within Edinburgh's World Heritage Site, and Apsley House, in Glasgow's central business district.
= 32 / FEILDEN CLEGG BRADLEY ARCHITECTS Last year: 30 Number of architects: 63 Female architects: 30 per cent True to form, Feilden Clegg Bradley has been at the forefront of sustainable development, winning planning for 'the greenest ever high-rise' in Britain and securing Gallions Park, a 200-home zero-carbon development in East London. Other highlights include opening the £12.3 million Cold War Museum at RAF Cosford and winning the competition to design an art gallery in Nicosia, Cyprus.
34 / TPS Last year: 50 Number of architects: 62 Female architects: 31 per cent Last year was a vintage one for TPS. Part of construction behemoth Carillion, the engineering arm of the firm played an integral role in Richard Rogers' Stirling prize-winning Barajas Airport, Madrid. The firm has grown by over 30 per cent and its AJ100 performance reects this achievement - it rises 16 places.
35 / AUSTIN-SMITH: LORD Last year: 16 Number of architects: 59 Female architects: 25 per cent Having lost 15 architects, it will come as no surprise that Austin-Smith: Lord has tumbled 19 places to its lowest position since 2002. This is clearly a short-term setback. The firm has just been picked to masterplan a life sciences and technology park in Croatia and its £6 million HQ building in London for Prospect trade union has been rated 'excellent' by BREEAM.
36 / ARCHITECTS DESIGN PARTNERSHIP Last year: 34 Number of architects: 58 Female architects: 43 per cent A marginal two-place slip, but nothing to concern this confident practice, whose sensitive Oxford Castle development scooped a MIPIM trophy. Work begins later this year on a £30 million integrated library and learningresource centre for Canterbury Christ Church University which secured planning approval in March.
37 / TP BENNETT Last year: 31 Number of architects: 56 Female architects: 18 per cent An encouraging performance by this central London-based outfit; the BBC named TP Bennett and BDP its two design practices to handle medium-sized developments across the UK. Management was beefed up by recruiting three directors including Ridzwa Fathan, former design director at TR Hamzah & Yeang.
38 / ROLFE JUDD Last year: 36 Number of architects: 55 Female architects: 22 per cent A one-place slip on the AJ100 belies an upbeat year for Rolfe Judd. Its striking Tabard Square development in Borough, south-east London, won Best Design initiative at the Housebuilding Innovation Awards.
But its coup de grâce, arguably, is the 43-storey Wellesley Square development which, if built, will add a splash of glamour to Croydon.
= 39 / HAMILTONS ARCHITECTS Last year: 33 Number of architects: 54 Female architects: 24 per cent Hamiltons Architects continues to slip down the charts, despite a number of daring schemes. Top of the pops is the mixed-use 'jewel box' in London's Islington, which now has planning. A scheme to replace the legendary Wembley Way - the 1970s concrete ramp known to football fans across the globe - has also kicked off.
= 39 / ROGERS STIRK HARBOUR + PARTNERS Last year: 39 Number of architects: 54 Female architects: 26 per cent Last year's AJ100 claimed this practice had had a 'rather dull year'. What a change 12 months can bring. Richard Rogers won the Pritzker Prize in March 2007. And last October, the firm - now working as Rogers Stirk Harbour + Partners - secured the Stirling Prize for Barajas Airport.
= 39 / SWANKE HAYDEN CONNELL Last year: 25 Number of architects: 54 Female architects: 30 per cent New York, London, Paris, Moscow, Istanbul, Miami, Washington DC and Sheffield - now this really is an international practice. The firm toasted 100 years in architecture last year by winning a British Council for Offices award for its 3i project at 16 Palace Street, London. Nevertheless, it has tumbled down the AJ100 by 14 places, having lost 10 architects over the year.
= 42 / ANSHEN + ALLEN Last year: 36 Number of architects: 52 Female architects: 31 per cent After 20 years in practice, Anshen Dyer was absorbed into its American parent company Anshen + Allen. Anshen + Allen boasts one of the world's largest portfolios of healthcare projects - PFI schemes include Norfolk and Norwich University Hospital.
= 43 / CAREY JONES ARCHITECTS Last year: 38 Number of architects: 50 Female architects: 8 per cent Disappointment over losing the commission for a new home for the Northern Ballet Theatre in Leeds was offset by a string of planning successes, including the £3.5 million Monarch House project in Leeds and an £18 million housing scheme in Bromley. The practice is also working with Make on Wandsworth Riverside Quarter - resubmitted after criticism from Ken Livingstone.
= 43 / HUNTER AND PARTNERS Last year: 41 Number of architects: 50 Female architects: 16 per cent Hunter and Partners' AJ100 ascent has stalled - at least for now. After six consecutive jumps to 41st place last year, the London and West Sussex-based practice has slipped two rungs.
This will no doubt prove a temporary blip, as the firm continues to benefit from the boom in residential, healthcare and education public-sector projects.
45 / CDA Last year: 40 Number of architects: 49 Female architects: 12 per cent It's been anything but a quiet year for CDA. Public uproar greeted its £50 million redevelopment, with Gareth Hoskins, of St Andrew Square, Edinburgh. The square is a Unesco World Heritage site, although the project will transform the derelict Scottish Provident headquarters. The firm also unveiled images of its new Telegraph Group HQ in London.
46 / FLETCHER PRIEST ARCHITECTS Last year: 46 Number of architects: 47 Female architects: 36 per cent The firm balanced its yin and yang by securing planning permission for the Stratford City project following its reported exit from the race to design the £1.5 billion Elephant & Castle scheme. It moved to new offices and added four architects over the year but its female workforce has decreased from 44 to 36 per cent.
= 47 / ELLIS WILLIAMS ARCHITECTS Last year: 46 Number of architects: 45 Female Architects: 33 per cent The most intriguing news is that this practice is set to bag various City Academy projects in Manchester following an agreement between city council and government officials. Completed projects include a £17.5 million retail and apartment development in Durham; the £30 million Darlington Learning Park; and a £750,000 visitor centre for Franciscan Nuns in Derbyshire.
= 47 / LEVITT BERNSTEIN ASSOCIATES Last year: 63 Number of architects: 45 Female architects: 31 per cent Major completions include refurbishment of the Brunswick Centre, Bloomsbury, bringing the project full circle for John Levitt, who helped design the complex in the 1960s. The firm is enjoying a wide range of commissions in the housing, arts and education sectors, and recently won the competition for the north London headquarters for charity Jewish Care.
= 47 / POLLARD THOMAS EDWARDS ARCHITECTS Last year: 34 Number of architects: 45 Female architects: 49 per cent After two years in the high 30s, Pollard Thomas Edwards has dipped 13 places to 47. Boasting one of the highest percentages of female architects, it is looking forward to a prosperous year, buoyed by wins including the £100 million Packington Estate regeneration in London's Islington.
Overseas, the practice is seeking a 'possible' Shanghai base to service its growing Chinese business.
= 47 / SOM Last year: 63 Number of architects: 45 Female architects: 33 per cent SOM is enjoying a steady stream of work - so much so that it added eight architects to the payroll. Work is still ongoing with its 201 Bishopsgate project, and it has picked up a couple of new schemes in Canary Wharf.
SOM is assisting the Kingdom of Brunei with planning strategies.
= 47 / WILKINSON EYRE ARCHITECTS Last year: 48 Number of architects: 45 Female architects: 16 per cent Dominic Bettison and Stafford Critchlow were made directors in 2006, and a satellite office was opened in Liverpool just before Christmas, servicing the 10,000-seat Liverpool Arena project which completes in December. The practice has an expanding workload in the Far East; the Guangzhou West Tower, currently on site, is due to be completed before Guangzhou hosts the Asian Games in 2010.