age:
51 years
appointments:
4 active
1 prior
primary industry:
Scientific research and development
about John
Since 2018, Professor Callan has been a director of 5 companies, the current directorship have a combined turnover of approximately £1.1m.
Combined Valuation
Combined Turnover
active directorships over time
company | turnover | valuation | start | end | status | role |
---|---|---|---|---|---|---|
sonotarg limited | Oct 2018 | - | Open | Director | ||
causeway chemicals ltd | Feb 2023 | - | Open | Director | ||
klas therapeutics limited | Feb 2021 | - | Open | Director | ||
sonotarg holdings limited | - | - | Mar 2022 | - | Open | Director |