(Last updated 19 September at 14:10 BST)
Derbyshire
2023 Overseas Players:
Haider Ali (Pakistan) Details
Suranga Lakmal (Sri Lanka) Details
Zaman Khan (Pakistan, Vitality Blast) Details
In:
Henry Brookes (Loan from Warwickshire, for LV= Insurance County Championship, 4-14 May) Details
Zak Chappell (Nottinghamshire) Details
Aneurin Donald (Short-term loan from Hampshire, from 18 May) Details
Matt Lamb (Warwickshire) Details
David Lloyd (Loan from Glamorgan, Metro Bank One-Day Cup) Details
Conor McKerr (Loan from Surrey, LV= Insurance County Championship, 25 June-9 July) Details
Out:
Mikey Cohen (Released) Details
Alex Hughes (Retired) Details
Shan Masood (Yorkshire) Details
Dustin Melton (Released) Details
Durham
2023 Overseas Players:
David Bedingham (South Africa) Details
Matt Kuhnemann (Australia, LV= Insurance County Championship) Details
Ajaz Patel (New Zealand, LV= Insurance County Championship, 11 May to end of July) Details
Migael Pretorius (South Africa, LV= Insurance County Championship, 10-28 July) Details
Tristan Stubbs (South Africa, Vitality Blast) Details
Raymond Toole (New Zealand, LV= Insurance County Championship, from 25 June) Details
Ashton Turner (Australia, Vitality Blast, replacing Tristan Stubbs) Details
Vishwa Fernando (Sri Lanka, final two LV= Insurance County Championship matches) Details
In:
Bas de Leede (Free Agent) Details
Brandon Glover (Free Agent) Details
Craig Miles (Loan from Warwickshire, for LV= Insurance County Championship, 11-28 June) Details
Matt Parkinson (Loan from Lancashire, LV= Insurance County Championship, 25 June to end of July & 3-6 September) Details
Ollie Robinson (Kent) Details
Nathan Sowter (Middlesex) Details
Out:
Sean Dickson (Somerset) Details
Chris Rushworth (Warwickshire) Details
Matt Salisbury (Leicestershire)
Essex
2023 Overseas Players:
Doug Bracewell (New Zealand, LV= Insurance County Championship, 13 April until end of July) Details
Simon Harmer (South Africa) Details
Daniel Sams (Australia, Vitality Blast) Details
Umesh Yadav (India, LV= Insurance County Championship, 4 September onwards) Details
Beau Webster (Australia, Metro Bank One-Day Cup) Details
Out:
Ben Allison (Loan to Worcestershire, 2 September onwards) Details
Aron Nijjar (Loan to Kent, 10 September onwards) Details
Jack Plom (Released) Details
Adam Wheater (Retired) Details
Glamorgan
2023 Overseas Players:
Cam Fletcher (New Zealand, short-term Vitality Blast deal) Details
Peter Hatzoglou (Australia, short-term Vitality Blast deal) Details
Colin Ingram (South Africa) Details
Marnus Labuschagne (Australia) Details
Michael Neser (Australia) Details
Mitchell Swepson (Australia, LV= Insurance County Championship, 25 June to end of July, as cover for Michael Neser) Details
In:
Harry Podmore (Kent) Details
Zain-ul-Hassan (South Asian Cricket Academy) Details
Out:
Lukas Carey (Released) Details
Joe Cooke (Released) Details
Tom Cullen (Released) Details
Michael Hogan (Kent) Details
David Lloyd (Loan to Derbyshire, Metro Bank One-Day Cup) Details
Tegid Phillips (Released)
Ruaidhri Smith (Released) Details
James Weighell (Released) Details
Gloucestershire
2023 Overseas Players:
Anwar Ali (Pakistan, Metro Bank One-Day Cup) Details
Zafar Gohar (Pakistan) Details
Marcus Harris (Australia) Details
Grant Roelofsen (South Africa, 24 May until end of July) Details
Harry Tector (Ireland, 1 August onwards) Details
In:
Zaman Akhter (South Asian Cricket Academy) Details
Marchant de Lange (Somerset) Details
Danny Lamb (Short-term loan from Lancashire, from 30 May) Details
Out:
Ian Cockbain (Released) Details
Ryan Higgins (Middlesex) Details
Benny Howell (Hampshire) Details
Hampshire
2023 Overseas Players:
Mohammad Abbas (Pakistan) Details
Kyle Abbott (South Africa) Details
Nathan Ellis (Australia, Vitality Blast) Details
Ben McDermott (Australia, Vitality Blast) Details
In:
Benny Howell (Gloucestershire) Details
Out:
Toby Albert (Loan to Kent, LV= Insurance County Championship, 25-28 July) Details
Aneurin Donald (Short-term loan to Derbyshire, from 18 May) Details
Kent
2023 Overseas Players:
Wes Agar (Australia, from 20 April until end of July) Details
James Bazley (Australia, Metro Bank One-Day Cup) Details
Yuzvendra Chahal (India, 10 September onwards) Details
George Linde (South Africa) Details
Ben Lister (New Zealand, 4 August onwards) Details
Kane Richardson (Australia, Vitality Blast) Details
Arshdeep Singh (India, LV= Insurance County Championship, June and July) Details
In:
Toby Albert (Loan from Hampshire, LV= Insurance County Championship, 25-28 July) Details
Arafat Bhuiyan (South Asian Cricket Academy) Details
Joey Evison (Nottinghamshire) Details
Ben Geddes (Loan from Surrey, LV= Insurance County Championship, 25-28 July) Details
Michael Hogan (Glamorgan) Details
Conor McKerr (Loan from Surrey, 13-20 April) Details
Aron Nijjar (Loan from Essex, 10 September onwards) Details
Matt Parkinson (Loan from Lancashire, Metro Bank One-Day Cup) Details
Out:
Matt Milnes (Yorkshire) Details
Harry Podmore (Glamorgan) Details
Ollie Robinson (Durham) Details
Darren Stevens (Released) Details
Lancashire
2023 Overseas Players:
Colin de Grandhomme (New Zealand, April to July) Details
Daryl Mitchell (New Zealand, 11 May to end of July) Details
Dane Vilas (South Africa) Details
Out:
Liam Hurt (Released) Details
Rob Jones (Loan to Worcestershire, Metro Bank One-Day Cup) Details
Danny Lamb (Loans to Gloucestershire, from 30 May to 14 June; Somerset, Metro Bank One-Day Cup) Gloucestershire Details | Somerset Details
Matt Parkinson (Loans to Durham, LV= Insurance County Championship, 25 June to end of July & 3-6 September; Kent, Metro Bank One-Day Cup) Durham Details | Kent Details
Leicestershire
2023 Overseas Players:
Umar Amin (Pakistan, LV= Insurance County Championship, 3 September onwards) Details
Peter Handscomb (Australia, until end of August) Details
Wiaan Mulder (South Africa) Details
Ajinkya Rahane (India, LV= Insurance County Championship and One-Day Cup, from June) Details
Naseem Shah (Pakistan, short-term Vitality Blast deal, as cover for Naveen-ul-Haq) DetailsÂ
Naveen-ul-Haq (Afghanistan, Vitality Blast) Details
In:
Sol Budinger (Nottinghamshire) Details
Ben Cox (Loan from Worcestershire, 1 September onwards) Details
Josh Davey (Short-term loan from Somerset, 18-21 May) Details
Matt Salisbury (Durham) Details
Out:
Hassan Azad (Released) Details
Sam Bates (Released) Details
Nat Bowley (Released) Details
Alex Evans (Released) Details
Gavin Griffiths (Released) Details
Ben Mike (Yorkshire) Details
George Rhodes (Released) Details
Abi Sakande (Released) Details
Middlesex
2023 Overseas Players:
Pieter Malan (South Africa) Details
Jayant Yadav (India, LV= Insurance County Championship, 3 September onwards) Details
In:
Ryan Higgins (Gloucestershire) Details
Out:
Nathan Sowter (Durham) Details
Northamptonshire
2023 Overseas Players:
Jordan Buckingham (Australia, LV= Insurance County Championship, 4-21 May) Details
Chris Lynn (Australia, Vitality Blast) Details
Lance Morris (Australia, LV= Insurance County Championship, 4-21 May) Details
Prithvi Shaw (India, Metro Bank One-Day Cup) Details
Chris Tremain (Australia, LV= Insurance County Championship, 6-23 April) Details
AJ Tye (Vitality Blast) Details
Sam Whiteman (Australia, until the end of August) Details
In:
Hassan Azad (South Asian Cricket Academy) Details
Dominic Leech (Loan from Yorkshire, LV= Insurance County Championship, 25-28 July) Details
Ollie Sale (Somerset) Details
David Willey (Yorkshire) Details
Out:
Nathan Buck (Retired) Details
Ben Curran (Released) Details
Brandon Glover (Released) Details
Charlie Thurston (Released) Details
Nottinghamshire
2023 Overseas Players:
Shaheen Afridi (Pakistan, Vitality Blast) Details
Colin Munro (New Zealand, Vitality Blast) Details
Dane Paterson (South Africa) Details
Imad Wasim (Pakistan, Vitality Blast) Details
Will Young (New Zealand, LV= Insurance County Championship, 10-28 July) Details
In:
Jack Brooks (Loan from Somerset, Vitality Blast, 26 May-18 June) Details
Tom Loten (Yorkshire) Details
Conor McKerr (Loan from Surrey, Vitality Blast, 18 June-2 July) Details
Olly Stone (Warwickshire) Details
Out:
Stuart Broad (Retired) Details
Sol Budinger (Leicestershire) Details
Zak Chappell (Derbyshire) Details
Joey Evison (Kent) Details
Somerset
2023 Overseas Players:
Cameron Bancroft (Australia, LV= Insurance County Championship, first four matches) Details
Curtis Campher (Ireland, Metro Bank One-Day Cup, until 13 August) Details
Matt Henry (New Zealand, 11 May to end of July) Details
Peter Siddle (Australia, until end of July) Details
Ish Sodhi (New Zealand, 30 June-15 July) Details
Neil Wagner (New Zealand, LV= Insurance County Championship, 3 September onwards) Details
In:
Shoaib Bashir (Berkshire) Details
Dom Bess (Short-term loan from Yorkshire, from 10 July) Details
Sean Dickson (Durham) Details
Tom Kohler-Cadmore (Yorkshire) Details
Danny Lamb (Loan from Lancashire, Metro Bank One-Day Cup) Details
Out:
Jack Brooks (Loans to Worcestershire 18-21 May; Nottinghamshire 26 May-18 June) Worcestershire Details | Nottinghamshire Details
Josh Davey (Short-term loan from Somerset, 18-21 May) Details
Marchant de Lange (Gloucestershire)
Ollie Sale (Northamptonshire) Details
Max Waller (Retired) Details
Surrey
2023 Overseas Players:
Sean Abbott (Australia, until end of July) Details
Tom Latham (New Zealand, LV= Insurance County Championship, June and July) Details
Sunil Narine (West Indies, Vitality Blast) Details
Kemar Roach (West Indies, LV= Insurance County Championship, 6 April to 14 May and 3 September onwards) Details
Sai Sudharsan (India, LV= Insurance County Championship, 3 September onwards) Details
In:
Dom Sibley (Warwickshire) Details
Out:
Ben Geddes (Loan to Kent, LV= Insurance County Championship, 25-28 July) Details
Conor McKerr (Loans to Kent 13-23 April; Nottinghamshire, Vitality Blast, 18 June-2 July; Derbyshire, LV= Insurance County Championship, 25 June-9 July) Kent Details | Nottinghamshire Details | Derbyshire Details
Dan Moriarty (Loan to Yorkshire, LV= Insurance County Championship, 25 June to end of July) Details
Sussex
2023 Overseas Players:
Shadab Khan (Pakistan, Vitality Blast) Details
Nathan McAndrew (Australia, April to July) Details
Cheteshwar Pujara (India) Details
Henry Shipley (New Zealand, LV= Insurance County Championship, June and July) Details
Steve Smith (Australia, LV= Insurance County Championship, 4-21 May) Details
Jaydev Unadkat (India, LV= Insurance County Championship, 3-22 September) Details
In:
Michael Burgess (Loan from Warwickshire, Vitality Blast) Details
Out:
Steven Finn (Retired) Details
Delray Rawlins (Released) Details
Luke Wright (Retired) Details
Warwickshire
2023 Overseas Players:
Hasan Ali (Pakistan, until end of July) Details
Kraigg Brathwaite (West Indies, 3 September onwards) Details
Dominic Drakes (West Indies, Vitality Blast, from 2 July) Details
Mir Hamza (Pakistan, LV= Insurance County Championship, 19-28 July) Details
Glenn Maxwell (Australia, Vitality Blast) Details
Paul Stirling (Ireland, Vitality Blast, until Glenn Maxwell arrives) Details
In:
Moeen Ali (Worcestershire) Details
Ed Barnard (Worcestershire) Details
Dom Bess (Loan from Yorkshire, 25 June-9 July) Details
Chris Rushworth (Durham) Details
Out:
Henry Brookes (Loan to Derbyshire, for LV= Insurance County Championship, 4-14 May) Details
Michael Burgess (Loan to Sussex, Vitality Blast) Details
Adam Hose (Worcestershire) Details
Matt Lamb (Derbyshire) Details
Craig Miles (Loan from Warwickshire, for LV= Insurance County Championship, 11-28 June) Details
Dom Sibley (Surrey) Details
Ryan Sidebottom (Released) Details
Olly Stone (Nottinghamshire) Details
Worcestershire
2023 Overseas Players:
Azhar Ali (Pakistan) Details
Michael Bracewell (New Zealand, Vitality Blast) Details
Usama Mir (Pakistan, Vitality Blast) Details
Navdeep Saini (India, LV= Insurance County Championship, 25 June to end of July) Details
Mitchell Santner (New Zealand, Vitality Blast) Details
Logan van Beek (Netherlands, 9 August to 22 September) Details
In:
Ben Allison (Loan from Essex, 2 September onwards) Details
Jack Brooks (Loan from Somerset, 18-21 May) Details
Adam Hose (Warwickshire) Details
Rob Jones (Loan from Lancashire, Metro Bank One-Day Cup) Details
Matthew Waite (Yorkshire) Details
Out:
Moeen Ali (Warwickshire) Details
Jacques Banton (Released) Details
Ed Barnard (Warwickshire) Details
Ben Cox (Loan to Leicestershire, 1 September onwards) Details
Josh Dell (Released) Details
Tom Fell (Released) Details
Charlie Morris (Retired) Details
Yorkshire
2023 Overseas Players:
Shai Hope (West Indies, LV= Insurance County Championship, 6-23 April) Details
Shan Masood (Pakistan) Details
Ryan Rickleton (South Africa, LV= Insurance County Championship, 10-28 July) Details
Saud Shakeel (Pakistan, LV= Insurance County Championship, 13 April-14 May) Details
Mark Steketee (Australia, LV= Insurance County Championship, 25 June to end of July) Details
Neil Wagner (New Zealand, LV= Insurance County Championship, until end of July) Details
David Wiese (Namibia, Vitality Blast) Details
In:
Jafer Chohan (Berkshire) Details
Mickey Edwards (Free Agent) Details
Ben Mike (Leicestershire) Details
Matt Milnes (Kent) Details
Dan Moriarty (Loan from Surrey, LV= Insurance County Championship, 25 June to end of July) Details
Out:
Gary Ballance (Released) Details
Dom Bess (Loans to Warwickshire 25 June-9 July; Somerset from 10 July) Warwickshire Details | Somerset Details
Tom Kohler-Cadmore (Somerset) Details
Dominic Leech (Loan to Northamptonshire, LV= Insurance County Championship, 25-28 July) Details
Tom Loten (Nottinghamshire) Details
Steven Patterson (Retired) Details
Harry Sullivan (Released) Details
Josh Sullivan (Released) Details
Matthew Waite (Worcestershire) Details
David Willey (Northamptonshire) Details