Question: Where is the headquarters of the production company directed by James May ?

Context articles: Top Gear (magazine)
Filmwala Pictures
Magic Stone Productions
Zooman and The Sign
The Holy Trinity (The Grand Tour)
Love, Marilyn
W. Chump and Sons
Ant Anstead
James May
Top Gear: US Special

Top Gear (stylised in-magazine as TopGear) is an automobile magazine owned by BBC Worldwide and published under contract by Immediate Media Company.
 It is named after the BBC's "Top Gear" television show.
 It was first published in October 1993 and is published monthly at a price of £4.35.
 The major presenters of the television series—Jeremy Clarkson, Richard Hammond, and James May—were regular contributors, along with the series' production staff.
 "Tame racing driver" The Stig also regularly features in their car tests, though only communicates his thoughts and feelings through the articles of others.
Filmwala Pictures is a Pakistani Film Production Company which is based in Karachi; the Production house was founded by Fizza Ali Meerza, who also produces the films for the production company.
 Nabeel Qureshi has directed three films for the production company; "Na Maloom Afraad", and "Actor in Law".
 and "Na Maloom Afraad 2".
 Fizza Ali Meerza has also served as writer and producer for the films.
Magic Stone is a film and television production company directed by husband-and-wife team, Michael Stephenson and Lindsay Stephenson.
Zooman and the Sign is an Obie Award-winning play by Charles Fuller.
 Set in Philadelphia in 1979, the play focuses on the murder of a 12-year-old African American girl in front of many local witnesses who refuse to reveal the killer despite the family's attempts for justice.
 It was first produced Off-Broadway by the Negro Ensemble Company directed by Douglas Turner Ward and starring notable actors such as Giancarlo Esposito and Carol Lynn Maillard.
 The production earned Fuller an Obie Award for playwriting.
"The Holy Trinity" is the first episode of British motoring series "The Grand Tour".
 It was made available exclusively through the Amazon Video streaming service, first on 17 November 2016 at 23:00 GMT.
 Jeremy Clarkson, Richard Hammond, and James May, who previously presented as a trio on BBC Two motoring programme "Top Gear", present the show.
 Production of the episode was handled by W. Chump and Sons, with executive production done by Andy Wilman, who previously served as the executive producer of "Top Gear".
Love, Marilyn is a 2012 American documentary film about Marilyn Monroe's writings produced by Stanley F. Buchthal, Liz Garbus, Amy Hobby, and directed by Garbus.
 The film premiered at the Toronto International Film Festival on September 12, 2012 and is based on the 2010 non-fiction book "Fragments: Poems, Intimate Notes, Letters", edited by Stanley F. Buchthal and Bernard Comment.
 The production firms that produced the film included the Diamond Girl production company, Sol's Luncheonette Production and the French-based StudioCanal production company, whose parent company (Canal+ Group) owns the third-largest film library in the world.
W. Chump & Sons Limited is an independent television production company founded in July 2015 in the United Kingdom.
 The company is headquartered on Power Road , Chiswick, London, and owned by Jeremy Clarkson, Richard Hammond, James May and Andy Wilman.
 The directors of the company are the former presenters and executive producer of the MPH Show and "Top Gear" Live exhibition tours, as well as the former "Top Gear" series produced for BBC Television from October 2002 until March 2015.
 s of 2016 the company was engaged in producing "The Grand Tour," a motoring television series that debuted on Amazon Video on 18 November 2016.
Anthony Richard Anstead (born March 1979) is an English television presenter, motor specialist, car builder, designer and artist, best known for co-presenting the Channel 4 automotive show "For the Love of Cars" with Philip Glenister.
 He started his own television Production Company in 2014, by producing his own show "The World’s Most Expensive Cars".
 In 2015, Anstead hosted BBC Two's live show "Building Cars Live", alongside James May and Kate Humble.
James Daniel May (born 16 January 1963) is an English television presenter and journalist.
 He is best known as a co-presenter of the motoring programme "Top Gear" alongside Jeremy Clarkson and Richard Hammond from 2003 until 2015.
 As of 2016 he is a director of the production company W. Chump & Sons (founded July 2015) and is also a co-presenter in the television series "The Grand Tour" for Amazon Video as an exclusive for Amazon Prime customers, alongside his former "Top Gear" colleagues, Clarkson and Hammond, as well as former producer Andy Wilman.
Top Gear: US Special is a full-length, special edition episode for BBC motoring program "Top Gear", and was first broadcast on BBC Two on 11 February 2007, as part of the 3rd episode of Series 9, with the special repeated in an edited version for UKTV channel Dave.
 The special sees hosts, Jeremy Clarkson, Richard Hammond, and James May travelling on a journey from Miami to New Orleans in three used cars to find if it's more economical to buy a vehicle rather than rent one.
 The Production Notes section of the "Top Gear" website describes the creation and production of this episode as "one of the most grueling shoots in Top Gear history, damn near finishing off several members of the crew through exhaustion."