Longest current tenure

Longest current tenure in Premier League
Manager Days
Pep Guardiola (Manchester City) 3219
Thomas Frank (Brentford) 2382
Mikel Arteta (Arsenal) 1950
Marco Silva (Fulham) 1393
Eddie Howe (Newcastle United) 1263
Kieran McKenna (Ipswich Town) 1225
Unai Emery (Aston Villa) 905
Longest current tenure in Championship
Manager Days
Michael Carrick (Middlesbrough) 913
John Mousinho (Portsmouth) 825
Daniel Farke (Leeds United) 660
Danny Röhl (Sheffield Wednesday) 559
Martí Cifuentes (Queens Park Rangers) 542
Liam Manning (Bristol City) 534
Chris Wilder (Sheffield United) 506
Longest current tenure in League One
Manager Days
Nigel Clough (Mansfield Town) 1630
Phil Parkinson (Wrexham) 1393
Dave Challinor (Stockport County) 1269
Richie Wellens (Leyton Orient) 1142
Gary Caldwell (Exeter City) 913
Darren Ferguson (Peterborough United) 841
Michael Skubala (Lincoln City) 528
Longest current tenure in League Two
Manager Days
Simon Weaver (Harrogate Town) 5817
Andy Woodman (Bromley FC) 1487
Paul Cook (Chesterfield) 1169
Johnnie Jackson (AFC Wimbledon) 1074
Lee Bell (Crewe Alexandra) 902
Mat Sadler (Walsall) 736
Grant McCann (Doncaster Rovers) 713
  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)