Sir Jonathan Portal

Governance intelligence partial public data

3.4 years in governance · 3 charity boards · 1 chair role · 3 sectors · 2.7y average tenure

Calculated from Charity Commission and Companies House records - deterministic, no AI.

Governance journey

• 1992
  Hgcapital Trust PLCiPossible matchLinked by a distinctive name match only - possibly the same person. No date of birth or corroborating record was available to confirm this link, so this record could belong to a namesake. Company status flags are never shown on possible or inferred matches.

  Secretary - resigned 1993
• 1992
  Grosvenor Ventures LimitediPossible matchLinked by a distinctive name match only - possibly the same person. No date of birth or corroborating record was available to confirm this link, so this record could belong to a namesake. Company status flags are never shown on possible or inferred matches.

  Secretary - resigned 1993
• 1992
  HG Investment Managers LimitediPossible matchLinked by a distinctive name match only - possibly the same person. No date of birth or corroborating record was available to confirm this link, so this record could belong to a namesake. Company status flags are never shown on possible or inferred matches.

  Secretary - resigned 1993
• 1992
  HG Pooled Management LimitediPossible matchLinked by a distinctive name match only - possibly the same person. No date of birth or corroborating record was available to confirm this link, so this record could belong to a namesake. Company status flags are never shown on possible or inferred matches.

  Secretary - resigned 1993
• 1992
  Grosvenor Alternate Partner LimitediPossible matchLinked by a distinctive name match only - possibly the same person. No date of birth or corroborating record was available to confirm this link, so this record could belong to a namesake. Company status flags are never shown on possible or inferred matches.

  Secretary - resigned 1993
• 1999
  Shiremoor International Engineering LTDiPossible matchLinked by a distinctive name match only - possibly the same person. No date of birth or corroborating record was available to confirm this link, so this record could belong to a namesake. Company status flags are never shown on possible or inferred matches.

  Secretary - resigned 2005
• 2000
  Shiremoor International Engineering LTDiPossible matchLinked by a distinctive name match only - possibly the same person. No date of birth or corroborating record was available to confirm this link, so this record could belong to a namesake. Company status flags are never shown on possible or inferred matches.

  Director - resigned 2005
• 2000
  Secura Monde International LimitediPossible matchLinked by a distinctive name match only - possibly the same person. No date of birth or corroborating record was available to confirm this link, so this record could belong to a namesake. Company status flags are never shown on possible or inferred matches.

  Secretary - resigned 2004
• 2000
  Secura Monde International LimitediPossible matchLinked by a distinctive name match only - possibly the same person. No date of birth or corroborating record was available to confirm this link, so this record could belong to a namesake. Company status flags are never shown on possible or inferred matches.

  Director - resigned 2004
• 2004
  Cellclear Communications LTDiPossible matchLinked by a distinctive name match only - possibly the same person. No date of birth or corroborating record was available to confirm this link, so this record could belong to a namesake. Company status flags are never shown on possible or inferred matches.

  Director
• 2006
  Wireless Intelligent Networking LimitediPossible matchLinked by a distinctive name match only - possibly the same person. No date of birth or corroborating record was available to confirm this link, so this record could belong to a namesake. Company status flags are never shown on possible or inferred matches.

  Secretary - resigned 2025
• 2006
  Wireless Intelligent Networking LimitediPossible matchLinked by a distinctive name match only - possibly the same person. No date of birth or corroborating record was available to confirm this link, so this record could belong to a namesake. Company status flags are never shown on possible or inferred matches.

  Director - resigned 2006
• 2007
  Obsidian Wireless LimitediPossible matchLinked by a distinctive name match only - possibly the same person. No date of birth or corroborating record was available to confirm this link, so this record could belong to a namesake. Company status flags are never shown on possible or inferred matches.

  Secretary - resigned 2011
• 2008
  Obsidian Communications LTDiPossible matchLinked by a distinctive name match only - possibly the same person. No date of birth or corroborating record was available to confirm this link, so this record could belong to a namesake. Company status flags are never shown on possible or inferred matches.

  Director
• 2009
  Obsidian Wireless Compliant Solutions LTDiPossible matchLinked by a distinctive name match only - possibly the same person. No date of birth or corroborating record was available to confirm this link, so this record could belong to a namesake. Company status flags are never shown on possible or inferred matches.

  Director - resigned 2010
• 2010
  THE Students Exploring Marriage TrustiPossible matchLinked by a distinctive name match only - possibly the same person. No date of birth or corroborating record was available to confirm this link, so this record could belong to a namesake. Company status flags are never shown on possible or inferred matches.

  Director - resigned 2014
• 2018
  Clothworkers' Foundation(THE)iPossible matchLinked by a distinctive name match only - possibly the same person. No date of birth or corroborating record was available to confirm this link, so this record could belong to a namesake. Company status flags are never shown on possible or inferred matches.

  Director - resigned 2020
• 2019
  Step BY Step Partnership LTDiPossible matchLinked by a distinctive name match only - possibly the same person. No date of birth or corroborating record was available to confirm this link, so this record could belong to a namesake. Company status flags are never shown on possible or inferred matches.

  Director
• 2023
  Winchester Cathedral Trust

  Trustee
• 2023
  Hospital OF ST Cross AND Almshouse OF Noble Poverty

  Trustee - Chair
• 2024
  Friends OF ST Cross Hospital Winchester

  Trustee
• 2025
  Step BY Step Fostering LimitediPossible matchLinked by a distinctive name match only - possibly the same person. No date of birth or corroborating record was available to confirm this link, so this record could belong to a namesake. Company status flags are never shown on possible or inferred matches.

  Director
• 2025
  THE Hundred MEN’S Hall LimitediPossible matchLinked by a distinctive name match only - possibly the same person. No date of birth or corroborating record was available to confirm this link, so this record could belong to a namesake. Company status flags are never shown on possible or inferred matches.

  Director

Governance network

Most-frequent collaborators

• Jonathan Sleath 2 shared boards
• SUE Woodward 1 shared board
• Christopher Michael Higgins 1 shared board
• Philippa Anne Hainsworth Billington 1 shared board
• Angela Clear 1 shared board

Similar leaders

People with a similar governance profile

• Rev Stewart Lisk same sectors
• MRS SUE Truefitt same sectors
• Rev Mark Ward same sectors
• Rev Jason Paul ST John Nicolle same sectors
• Rev Timothy William Dennis same sectors
• The Venerable Katrina Scott same sectors

Grouped by governance profile from public records - deterministic, no AI.