No, the CIRCA5000 personal pension is not a stakeholder pension scheme.
Stakeholder pension schemes are a specific form of pension that must meet Government minimum standards relating to contributions, charges, and provision of a default investment fund.
If you would like to open a stakeholder pension scheme elsewhere, it is for you to consider (with the help of a financial adviser, if required) whether one might meet your needs as well as the CIRCA5000 Personal Pension.