Longest current tenure

Longest current tenure in Premier League
Manager Days
Pep Guardiola (Manchester City) 3157
Thomas Frank (Brentford) 2320
Mikel Arteta (Arsenal) 1888
Marco Silva (Fulham) 1331
Eddie Howe (Newcastle United) 1201
Kieran McKenna (Ipswich Town) 1163
Unai Emery (Aston Villa) 843
Longest current tenure in Championship
Manager Days
Michael Carrick (Middlesbrough) 851
John Mousinho (Portsmouth) 763
Daniel Farke (Leeds United) 598
Danny Röhl (Sheffield Wednesday) 497
Martí Cifuentes (Queens Park Rangers) 480
Liam Manning (Bristol City) 472
Chris Wilder (Sheffield United) 444
Longest current tenure in League One
Manager Days
Nigel Clough (Mansfield Town) 1568
Phil Parkinson (Wrexham) 1331
Dave Challinor (Stockport County) 1207
Richie Wellens (Leyton Orient) 1080
Gary Caldwell (Exeter City) 851
Darren Ferguson (Peterborough United) 779
Shaun Maloney (Wigan Athletic) 755
Longest current tenure in League Two
Manager Days
Simon Weaver (Harrogate Town) 5755
Andy Woodman (Bromley FC) 1425
Paul Cook (Chesterfield) 1107
Johnnie Jackson (AFC Wimbledon) 1012
Lee Bell (Crewe Alexandra) 840
Mat Sadler (Walsall) 674
Grant McCann (Doncaster Rovers) 651
  The longest managerial reign of all time in the English football league belongs to Fred Everiss, who was manager of West Bromwich Albion for over 45 years (from 1902 to 1948)