Steve Tompkins, director of architecture studio Haworth Tompkins, has been named the most influential person in British theatre, coming top of the Stage 100 list.
Haworth Tompkins has been behind many theatre building projects such as Bridge Theatre, Battersea Arts Centre, Liverpool Everyman and Bristol Old Vic.
Tompkins rose to the number one spot from number 23 last year, toppling the artistic director of the Royal Court, Vicky Featherstone, who is now placed at 19.
Amongst those whom Tompkins has pipped to the post are Sonia Friedman who is held at 2, Andrew Lloyd Webber at 3 and Cameron Mackintosh at 4.
Stephen Daldry, the director of The Jungle and The Inheritance, enters the list at 28, along with newbie directors Jamie Lloyd director of Pinter at the Pinter at 32 and Phyllida Lloyd (Mamma Mia! and Tina) at 57.
The highest-placed new entry is Leonard Blavatnik and Danny Cohen at number 9. The pair bought Theatre Royal Haymarket last year.
Campaigners on the list include Paule Constable, who has worked to overturn EU lighting regulations, who has jumped from number 89 to 27 and Cassie Raine and Anna Ehnold-Danailov, founders of Parents and Carers in the Performing Arts, who have moved from 88 to 52.
This year's list sees the number of women or entries that include a woman in the top 20 go up from eight to ten and across the whole list the percentage has risen from 46% to 54%. The list overall continues to be dominated by men.
Kwame Kwei-Armah is the highest-placed black, Asian or minority ethnic theatremaker on the list.
The Stage 100 is decided by a panel of senior editorial staff at industry publication The Stage, following a period of industry consultation. The panel includes the editor Alistair Smith, associate editors Mark Shenton and Lyn Gardner, reviews editor Natasha Tripney, news editor Matthew Hemley and features editor Nick Clark.
The list reflects the industry and is not weighted for balance by gender or ethnicity. It does however recognise achievements of the prior year alongside continuous achievement.