Dr Ian Stewart Macmillan is recorded by Companies House as a person with significant control on 4 UK companies (4 active, 0 ceased), catalogued at https://openregistry.sophymarine.com/uk-companies/psc/ian-stewart-macmillan (OpenRegistry canonical ID GB-PSC-ian-stewart-macmillan). Sophymarine's OpenRegistry resolves the name slug "ian-stewart-macmillan" against the Companies House PSC bulk feed and cross-links each active appointment to the controlling company's profile, officers, shareholders and filings. Programmatic access via MCP at https://openregistry.sophymarine.com/mcp.
Dr Ian Stewart Macmillan is currently recorded as a person with significant control on the following 4 companies:
Each row above is a Companies House registration where Dr Ian Stewart Macmillan appears on the
PSC register. OpenRegistry groups appointments by a slugged form of the PSC's
name (ian-stewart-macmillan): unrelated people who share a name will
collide under the same slug. Use date of birth (month + year only,
published by Companies House on each company's PSC list), nationality,
country of residence and the underlying company profiles to disambiguate
individuals. Corporate PSCs (registrable legal entities, "RLEs") carry a
registration number on each company profile.
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