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The red node is Tjeerd. 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

Tjeerd Kalff

Tjeerd Kalff was previously a director of MSD Animal Health UK Limited (until 1994). Source: Companies House records.

Director at MSD Animal Health UK Limited

  • 0 current roles
  • 1 previous role
  • Served alongside 30 people
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Official record Companies House · updated 11th October 2026

Roles

1 role across 1 organisation (0 current, 1 previous)

Previous roles (1)

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

People Tjeerd has served alongside

30 people across 1 organisation

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.

MSD Animal Health UK Limited 30 people · 1994-2026

Sources

Companies House
Officer appointments and resignations.
Edition
Register edition compiled 11th October 2026
Identity
Records are treated as the same person only where our identity-matching rules support it. Confirmed relationships are supported by the approved identity-matching evidence and rules. Likely relationships are supported by sufficient evidence to suggest the records concern the same individual, but are not established as confirmed; they are shown with the label “Likely the same person”. How people are matched

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