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The red node is John. Pale nodes are charities, grey nodes are companies, and darker grey nodes are the people who sit on them. Dashed links are historical or inferred. Click any node to explore.

Person

John Roger Marshall

John Roger Marshall was previously a director of Building Software Limited (until 2021) and 11 other organisations. Source: Companies House records.

Director at BRE Trust · Director at Building Research Establishment Limited

  • 0 current roles
  • 12 previous roles
  • Served alongside 122 people
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Official record Companies House · updated 11th October 2026

Roles

12 roles across 12 organisations (0 current, 12 previous)

Previous roles (12)

Company roles, current and past, as filed at Companies House.

People John has served alongside

122 people across 12 organisations

Based on overlapping official board records. Calculated from official records It does not mean they know each other. Only formal co-service is listed: people are never joined on a matching name alone.

Building Software Limited 3 people · 1997-present

Carillion JM Limited 37 people · 1992-2018

Cedar (Maple OAK) LTD 35 people · 1992-2025

Carillion Mena Limited 23 people · 1994-2018

Harsco Infrastructure Services Limited 19 people · 1991-1995

BRE Trust 17 people · 1999-2001

SGB Holdings Limited 14 people · 1939-1996

SGB Investments Limited 12 people · 1993-1996

Sources

Companies House
Officer appointments and resignations.
Edition
Register edition compiled 11th October 2026
Identity
Records are treated as the same person only where the evidence confirms it. How people are matched

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