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AJ 100

=25 / SCOTT BROWNRIGG Last year: =26 Number of architects: 64 Female architects: 16% The year saw the firm recruit 22 architects at its London and Guildford offices and nail a clutch of commercial contract wins. These included an £8 million revamp of the Hippodrome in London's Leicester Square.

Education is core to Scott Brownrigg, with projects such as Kent Schools PFI, Ruislip High School, Hillingdon, and University of Westminster's new teaching blocks contributing to an estimated 20 per cent increase in profits.

=25 / SWANKE HAYDEN CONNELL ARCHITECTS Last year: =24 Number of architects: 64 Female architects: 20% The Sheffield and London offices of the international firm have grown modestly over the past 12 months. Diversifying from mostly office projects seems to be paying off, with healthcare, commercial and education now providing two-thirds of turnover. The first PFI commission, a £300 million healthcare scheme, achieved financial close last year. In education, the office has a £9 million research facility for the Open University and is at the initial design stage for a City Academy in Coventry.

27 / PASCALL + WATSON Last year: 36 Number of architects: 63 Female architects: 8% Pascall + Watson Architects started its 50th year with a flourish: a party for 168 staff; news of its continued expansion (reflected by the launch of a new coffee-table book); the culling of 'troublesome' clients; and a surge up the table by nine places. On the project front, the practice won significant design commissions for the new terminal and pier at Dublin Airport; an interim terminal and pier at Abu Dhabi; and two new terminals in Cyprus. It also completed the detailed design for Richard Rogers' Terminal 5 at Heathrow and St Pancras station. New regional offices have been opened in Ireland and Manchester.

28 / RYDER HKS Last year: 31 Number of architects: 62 Female architects: 11% Ryder HKS, which, with 62 architects, has climbed three places, works around the world in some seriously odd places, as well as taking the British architectural scene very seriously. The strangest commission this Newcastle- and London-based firm undertook in 2005 must be a £20 million education bundle made up of two kindergartens, two primary schools and a mixed secondary school. What's weird about that? They are in Kurdistan, northern Iraq. The practice is working with its US partner HKS - one of the largest firms in the world - on this rather risky undertaking.

29 / LEWIS & HICKEY Last year: =74 Number of architects: 61 Female architects: 8% After crashing from 26th place in 2004 to 74th last year, Lewis & Hickey is one of the highest climbers.

So what's behind this meteoric rise? Partly, it's down to a rebrand, claims group chief executive Paul Miele.

But the practice also secured the £82 million We s t- eld, Guildford Friary Centre; the £28 million Heathrow South cargo terminal; and a £32 million revamp of Edinburgh University's central library.

30 / FEILDEN CLEGG BRADLEY ARCHITECTS Last year: 23 Number of architects: 59 Female architects: 32% Feilden Clegg Bradley continues to break new ground in terms of sustainable architecture. Its Arcadia development in Cambridge for Countryside Properties has been hailed as an exemplar for future housing projects. The office's specialisation in school projects also reaped dividends with Haverstock School, along with city academies in Northampton and Bristol.

=31 / RPS GROUP Last year: =29 Number of architects: 57 Female architects: 12% Very little has changed at RPS Group, which has slipped just two places on last year and has maintained the same number of architects - 57 - for three years running. Arguably the highlight of 2006 (so far) is the purchase of Australian-based Ecos, which specialises in environmental consultancy services to the energy and minerals industries. This year the firm achieved a 32 per cent increase in pre-tax profit, powered mainly by the energy sector.

=31 / TP BENNETT Last year: 28 Number of architects: 57 Female architects: 18% In December 2005 the practice followed a number of others in converting from a partnership to an LLP. As a result, the original membership of six partners has expanded to include 21 others at director and project-director level. Schemes starting on site include the redevelopment of the Guildhall North Block for the Corporation of London, the fifth building for Microsoft at Thames Valley Park, and the 30,000m 2 fit-out of IPC Media's new headquarters at Bankside 123.

33 / HAMILTON ASSOCIATES Last year: =29 Number of architects: 55 Female architects: 13% Hamiltons started this year with a number of major planning applications focusing on sustainable design. Its year has been mainly static, with no net loss of architects. The practice's commitment to sustainability is evident in its proposals for Castle House, a 147m-tall residential tower, complete with three integrated rooftop wind turbines, that was approved by Southwark council in March.

Hamiltons is now developing projects in the arts and cultural sectors.

=34 / ARCHITECTS DESIGN PARTNERSHIP Last year: =33 Number of architects: 54 Female architects: 37% ADP is down one place from last year, but up two places on 2004. It has been appointed to design a £20 million academic building in Canterbury. The win is especially satisfying because the project was scrapped three times over the last 12 months. If approved later this year, it will involve the demolition of an unlisted 1960s office building sited in a conservation area.

=34 / POLLARD THOMAS EDWARDS ARCHITECTS Last year: 32 Number of architects: 54 Female architects: 52% This year the practice has opened its second satellite office - in Brighton. This is part of an expansion for the practice from urban work to suburban and rural projects. Among these is a still-confidential scheme for the creation of a new village. In 2005, PTE published a book on its work. Completions included a residential scheme above a school for St Jude's and St Paul's in Islington, London, and the conversion of Crown Wharf Ironworks in East London into live/work units.

=36 / ANSHEN DYER Last year: 10 Number of architects: 52 Female architects: 27% Anshen Dyer's apparently dramatic drop in size in fact reflects a change in the way this Anglo-American healthcare specialist audits its staff. The practice still has one of the largest portfolios of PFI hospitals in the UK. Projects completed during the last year include phase one of the redevelopment of Great Ormond Street hospital.

=36 / ROLFE JUDD Last year: =33 Number of architects: 52 Female architects: 19% Another three-place slip for Rolfe Judd, whose proposed refit of a swathe of London's Lime Street was panned by English Heritage in February 2006.

The firm is to revamp Richard Seifert's iconic Centre Point complex, and has been chosen to carry out a major internal refurbishment of the 32-storey London skyscraper. A stone's throw due east, the practice has designed 40 Holborn Viaduct - a speculative office complex on the site of the former DeBeers HQ building.

38 / CAREY JONES Last year: =38 Number of architects: 51 Female architects: 12% The firm has a range of schemes on its books, from a £300,000 art-gallery extension in Newcastle to a $70 million (£40 million) casino interior in Florida. Other big projects include the Clarence Dock development in Leeds, the mixed-use Paragon scheme in Brentford, and a number of collaborations with Make Architects.

39 / RICHARD ROGERS PARTNERSHIP Last year: =38 Number of architects: 49 Female architects: 24% The Richard Rogers Partnership has, in purely AJ100 terms, had a rather dull year. With a one-place change in its ranking, the practice has gained two architects. Away from the stats, however, it's a different story. Winning the vast extension to the Javits Conference Centre in New York is fascinating in itself, but then the firm's principal nearly lost the job because of his Palestinian sympathies. Furthermore, RRP has two of the best young-ish designers around, in Graham Stirk and Ivan Harbour, and it is rumoured that Rogers has rediscovered his love of design work.

40 / CDA Last year: 44 Number of architects: 48 Female architects: 8% Otherwise known as Comprehensive Design Architects, CDA made its first foray into PFI education in 2005, heralding a watershed for the Edinburgh-based retail specialist. The scheme in question is a £17 million cluster of primary schools for North Lanarkshire Council, for which CDA is collaborating with Aedas and BMJ. CDA director Michael Anavi insists the company's strategic focus remains in retail. This commitment is illustrated by a new £30 million HQ for Littlewoods in Speke, Liverpool.

=41 / 3D ARCHITECTS Last year: N/A Number of architects: 46 Female architects: 24% This practice has romped into the AJ100's middle ground. A management-buyout team took the helm from founding director David Young in April 2005. The year also witnessed the launch of a London operation led by former Reid Architecture director, Mark Taylor. Its robust entry into the AJ100 reects an energetic performance in the commercial market. Among the workload completed in 2005 is 40 Prince's Street, a £13 million mixed-use development in the heart of Edinburgh's World Heritage site. Meanwhile, its rolling contract with WM Morrison saw the completion of a £15.4 million agship Glasgow store.

=41 / HUNTER AND PARTNERS Last year: =52 Number of architects: 46 Female architects: 13% Climbing 11 places since last year, Hunter and Partners continues its ascent up the table, gaining eight architects over the past 12 months. The Londonand West Sussex-based practice has benefited from the boom in residential, education and healthcare projects in the public sector, from where it gets up to 70 per cent of its work. The firm is looking forward to a buoyant year, hoping for a large involvement in the Olympic Way Wembley.

=43 / CHARTER CONSULTANT ARCHITECTS Last year: =41 Number of architects: 45 Female architects: 13% This Bedford-based out-t recruited just two architects in 2005. That said, CCA has relocated its London HQ to bigger premises and extended its Bournemouth site by a third. Last year saw the firm win a commendation from the Design Commission for Wales for its Wood Street project in Cardiff - a £40 million office tower neighbouring the Millennium stadium. The practice also secured a £40 million refurbishment at South Thames College, London.

=43 / JOHN MCASLAN AND PARTNERS Last year: =59 Number of architects: 45 Female architects: 44% John McAslan has around £1.5 billion worth of projects on the boards or on site at the moment, ranging from major transportation commissions (King's Cross Station and Birmingham New Street Station); to the Roundhouse in Camden Town; to the new engineering block at Southampton University; and the Student Centre at the University of Manchester. Overseas commissions include two large masterplanning commissions in Moscow.

45 / HTA ARCHITECTS Last year: =74 Number of architects: 44 Female architects: 20% A period of considerable growth for HTA - the practice is 29 places higher than its 2005 position. The workforce has almost doubled, extra office space has been taken on, and turnover and profit have increased. Highly praised by CABE, the practice's entry for the ODPM's £60K house competition will be built at schemes in Leeds and Northampton. HTA has also recently won the Housing Design Award for Affordable Housing.

=46 / FLETCHER PRIEST Last year: =45 Number of architects: 43 Female architects: 44% There was good news at the end of 2005, when the practice's masterplan for Stratford City with Arup Associates was saved, after fears that it might be a victim of the Olympics. On the Thames, Fletcher Priest has won planning permission to replace Mondial House. And in Newcastle, it is refurbishing the country's last newsreel cinema. It has completed an office in Eastbourne Terrace, London, for Land Securities, powered by geothermal energy.

=46 / ELLIS WILLIAMS Last year: =50 Number of architects: 43 Female architects: 26% Educational specialist Ellis Williams scooped a regional award from the RIBA for the £8.5 million Longley Park Sixth-Form College in Sheffield, and the SCALA award for the £13 million Lilian Baylis School in Lambeth. Rising three places, the practice is predicting an exciting year ahead with 'income set to jump by 35 per cent'. The firm is also on the winning teams for Ealing Schools PFI, Northampton PFI, Manchester Frameworks 1+2, and most recently Lancashire BSF.

=48 / DAVID CHIPPERFIELD Last year: =56 Number of architects: 42 Female architects: 38% The practice has just celebrated 20 years of outstanding work with a major retrospective exhibition in Padua, Italy. The big disappointment of the year was losing control of the BBC Glasgow project to Keppie Design.

Blockbuster projects completed over the past year include the Figge Art Museum in Iowa, USA and the Museum of Modern Literature in Marbach am Neckar, Germany. Current projects include the San Michele Cemetery in Venice.

=48 / WILKINSON EYRE Last year: =50 Number of architects: 42 Female architects: 12% The highest-profile project this year has been one of the smallest; the Alpine House at Kew Gardens.

In contrast, construction of the Guangzhou West tower in China, the fourth-tallest tower in the world, started at the end of 2005.

Bread-and-butter projects include City and Islington College's Centre for Business, Art and Technology, which opened in January. The practice moved into YRM's former offices in Clerkenwell. Stafford Critchlow has become a director, and associate director Martin Knight left to set up on his own.

=50 / SQUIRE AND PARTNERS Last year: =47 Number of architects: 41 Female architects: 22% Squire and Partners began the year with a competition win and planning consent to design the headquarters and flagship store for Reiss clothing. In May, the practice took second place in a competition to design a new state library in Guadalajara, Mexico. Over the past year, the office has achieved consents for several high-rise projects in and around London.

=50 / DLG ARCHITECTS Last year: =45 Number of architects: 41 Female architects: 24% Having completed work on Cavendish House in Leeds and a refurbishment for the London College of Fashion, the 33-year old practice has recently relaunched its brand. The Leeds and London offices are gearing up for a busy year ahead, with a handful of major urban projects. Quarry Hill, a mixed-use development for a 3ha site in Leeds city centre, is about to go on site, and a similar scheme is in the pipeline for the Waterfront Quarter in Huddersfield.

=50 / TPS CONSULT Last year: =33 Number of architects: 41 Female architects: 22% In autumn 2005, Malcolm Cook, previously director of architecture at Marks Barfield Architects, took the architectural helm at TPS Consult, part of construction behemoth Carillion. The company has partnering at its core, working with other architects - such as Richard Rogers at Madrid's Barajas Airport and Heathrow Terminal Five. With high security clearance, many projects stay under wraps, but prison work is a large strand, and TPS is also refurbishing army accommodation. Cook has brought in work on the London Underground, at Euston and Leicester Square.

=53 / PURCELL MILLER TRITTON Last year: =54 Number of architects: 40 Female architects: 28% Highly respected as a conservation practice, Purcell Miller Tritton is expanding into an element of new build, but only using traditional materials in historic contexts. It has opened offices in Sheffield and York in the past year. The highest-profile scheme at present is a feasibility study for conservation work at Battersea Power Station in London. The Georgian Group gave the practice an award for its work on Hawksmoor's Christ Church Spitalfields.

=53 / FARRELLS Last year: =47 Number of architects: 40 Female architects: 15% Farrells' mid-table ranking has dipped slightly this year, despite the practice retaining roughly the same staff and winning some high-profile victories.

The best news of the year for the firm came when its Lots Road power station conversion in Chelsea finally won the green light after being called in by the Deputy Prime Minister.

However, there was also bad news, when Farrell walked away from one of the practice's most contentious schemes in years - South Kensington Underground Station.

=53 / WIMBERLY ALLISON TONG AND GOO Last year: =66 Number of architects: 40 Female architects: 28% It has been a great year for WATG, climbing 13 places in the table. Reviewing the portfolio, senior vice-president Tom Russell says: 'It's been a mixed bag' - which includes 'a couple of palaces'. The recently completed $2 billion (£1.1 billion) Emirates Palace in Abu Dhabi has helped drive the growth of the practice, which has recently moved from design-only to full-service work. It hopes to establish London sub-offices in Oman and Egypt.

=56 / DEVEREUX ARCHITECTS Last year: =47 Number of architects: 39 Female architects: 23% Devereux recently formed an LLP with practice Lacey Hickie Cayley in south-west England to help with a growing number of projects in the region. Healthcare schemes played an important role in the last year. Over the next 12 months the firm is hoping to expand its work in the Middle East.

=56 / NPS PROPERTY CONSULTANTS Last year: =74 Number of architects: 39 Female architects: 8% In last year's AJ100 NPS' bosses pledged to increase architects at this multi-disciplinary practice to 55 within 12 months. The firm has not achieved this aim, but has still leapt 18 places up the table. The practice has also scooped the Norfolk Association of Architects' craftmanship award for Cavell First and Nursery School - a £1.5 million school in Lakenham, Norwich, built in partnership with JS Hay.

=56 / HLM ARCHITECTS Last year: =66 Number of architects: 39 Female architects: 13% Passion, innovation and inspiration - these were the superlatives bestowed on HLM Architects by the Sunday Times, which voted the firm one of the UK's best employers. The practice certainly appears to be growing, as does its awards cabinet. Last year saw the office secure a high commendation in the Building Quality Awards for its Andrew Huxley building. It has also climbed 10 places in the AJ100. Other diary entries for 2005 included the opening of a larger, brighter Belfast office and a £15 million contract to centralise Guildford School of Acting's disparate buildings into a single campus.

=59 / DONALD INSALL ASSOCIATES Last year: =52 Number of architects: 38 Female architects: 26% Seen as a conservation practice, Insall is also working on new private houses, and has a large new accommodation building at Gonville and Caius College, Cambridge, on site. Highest-profile project this year was the Battle of Britain Monument on the Thames Embankment.

=59 / HAWKINS\BROWN Last year: =59 Number of architects: 38 Female architects: 45% The practice has completed a 208-unit key-worker housing scheme in Surrey and smaller projects, such as the Dalston Culture House and The Roald Dahl Museum and Story Centre, shortlisted for the Gulbenkian Prize. It has also won commissions including the Nottingham Art Exchange.

Planning applications for Sheffield's Park Hill Estate and the Bottle Store in Stockwell Green have been submitted recently.

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