Chief executive of the tax authority awarded in New Year's Honours list - while DWP perm sec Robert Devereux is knighted

With the end of 2015 in sight, we asked Whitehall's top officials to look back at the year, set out their priorities for 2016 – and shed some light on their festive plans...

With the end of 2015 in sight, we asked Whitehall's top officials to review the year, set out their priorities for 2016 – and shed some light on their festive plans. Sir Derek Jones, permanent secretary of the Welsh Government, takes part in our biggest-ever perm secs' round-up series...

With the end of 2015 in sight, we asked Whitehall's top officials to review the year, set out their priorities for 2016 – and shed some light on their festive plans. Ordnance Survey chief executive Nigel Clifford takes part in our biggest-ever perm secs' round-up series...

With the end of 2015 in sight, we asked Whitehall's top officials to review the year, set out their priorities for 2016 – and shed some light on their festive plans. National Savings & Investments (NS&I) chief executive Jane Platt takes part in our biggest-ever perm secs' round-up series...

With the end of 2015 in sight, we asked Whitehall's top officials to review the year, set out their priorities for 2016 – and shed some light on their festive plans. Civil service chief executive and Cabinet Office permanent secretary John Manzoni takes part in our biggest-ever perm secs' round-up series...

With the end of 2015 in sight, we asked Whitehall's top officials to review the year, set out their priorities for 2016 – and shed some light on their festive plans. Sir Jeremy Heywood, cabinet secretary and head of the civil service, takes part in our biggest-ever perm secs' round-up series...

With the end of 2015 in sight, we asked Whitehall's top officials to review the year, set out their priorities for 2016 – and shed some light on their festive plans. Department for Education permanent secretary Chris Wormald takes part in our biggest-ever perm secs' round-up series

With the end of 2015 in sight, we asked Whitehall's top officials to review the year, set out their priorities for 2016 – and shed some light on their festive plans. Major Projects Authority chief executive Tony Meggs takes part in our biggest-ever perm secs' round-up series

With the end of 2015 in sight, we asked Whitehall's top officials to review the year, set out their priorities for 2016 – and shed some light on their festive plans. Martin Donnelly, permanent secretary at the Department for Business, Innovation & Skills (BIS) takes part in our biggest-ever perm secs' round-up series

With the end of 2015 in sight, we asked Whitehall's top officials to review the year, set out their priorities for 2016 – and shed some light on their festive plans. Charity Commission chief executive Paula Sussex ​ takes part in our biggest-ever perm secs' round-up series...

With the end of 2015 in sight, we asked Whitehall's top officials to review the year, set out their priorities for 2016 – and shed some light on their festive plans. Melanie Dawes, permanent secretary of the Department for Communities and Local Government, takes part in our biggest-ever perm secs' round-up series...