Independent fund administrators.

We offer independent administration for UK private equity, venture capital and EIS fund managers.

Mainspring was founded in 2010 and provides services to over 30 fund managers with funds under administration in excess of £1 billion.

Mainspring has built a reputation for providing a cost effective, high-quality and professional service.



  • “Working with Mainspring is a pleasure – the whole team works hard to reduce the amount of time we have to spend away from investing and managing the portfolio.”

    Robert Dighero, Partner, Passion Capital





Our leadership team is a blend of technical expertise and industry experience.

We have an entrepreneurial mind-set and understand what it means to build a business.

Please click here or on a profile to the left to read more about our team




Fund Administration & Accounting

Custody & Nominee

Middle Office & Reporting


Flexible, cost-effective back and middle office services from set up and “know your customer” through to accounting and reporting.

Read more


Specialist knowledge of tax efficient structures to deliver the greatest benefits through the life cycle of the fund.

Read more


Full suite of enterprise-level services delivered at a cost commensurate with the fund’s size.
 

Read more

Independent fund administrators.

We offer independent administration for UK private equity, venture capital and EIS fund managers.

Mainspring was founded in 2010 and provides services to over 30 fund managers with funds under administration in excess of £1 billion.

Mainspring has built a reputation for providing a cost effective, high-quality and professional service.


  • “Working with Mainspring is a pleasure – the whole team works hard to reduce the amount of time we have to spend away from investing and managing the portfolio.”

    Robert Dighero, Partner, Passion Capital



Our leadership team is a blend of technical expertise and industry experience.

We have an entrepreneurial mind-set and understand what it means to build a business.

Please click here or on a profile below to read more about our team




Stephen Geddes
Managing Director

Damian Simmons
Head of Administration & Accounting

Neil Clark
Chief Operations Officer

Yinghui Tang
Fund Accounting Manager

Stephen Doherty
Investment Operations Manager

Minal Sharma
Senior Compliance Manager




Fund Administration & Accounting

Custody & Nominee

Middle Office & Reporting

Flexible, cost-effective back and middle office services from set up and “know your customer” through to accounting and reporting.

Read more

Specialist knowledge of tax efficient structures to deliver the greatest benefits through the life cycle of the fund.

Read more

Full suite of enterprise-level services delivered at a cost commensurate with the fund’s size.
 

Read more

Independent fund administrators.

We offer independent administration for UK private equity, venture capital and EIS fund managers.

Mainspring was founded in 2010 and provides services to over 30 fund managers with funds under administration in excess of £1 billion.

Mainspring has built a reputation for providing a cost effective, high-quality and professional service.


  • “Working with Mainspring is a pleasure – the whole team works hard to reduce the amount of time we have to spend away from investing and managing the portfolio.”

    Robert Dighero, Partner, Passion Capital




Our leadership team is a blend of technical expertise and industry experience.

We have an entrepreneurial mind-set and understand what it means to build a business.

Please click here or on a profile below to read more about our team




Stephen Geddes
Managing Director

Damian Simmons
Head of Administration & Accounting

Neil Clark
Chief Operations Officer

Yinghui Tang
Fund Accounting Manager

Stephen Doherty
Investment Operations Manager

Minal Sharma
Senior Compliance Manager




Fund Administration & Accounting

Flexible, cost-effective back and middle office services from set up and “know your customer” through to accounting and reporting.

Read more

Custody & Nominee

Specialist knowledge of tax efficient structures to deliver the greatest benefits through the life cycle of the fund.

Read more

Middle Office & Reporting

Full suite of enterprise-level services delivered at a cost commensurate with the fund’s size.

Read more

Independent fund administrators.

We offer independent administration for UK private equity, venture capital and EIS fund managers.

Mainspring was founded in 2010 and provides services to over 30 fund managers with funds under administration in excess of £1 billion.

Mainspring has built a reputation for providing a cost effective, high-quality and professional service.


  • “Working with Mainspring is a pleasure – the whole team works hard to reduce the amount of time we have to spend away from investing and managing the portfolio.”

    Robert Dighero, Partner, Passion Capital




Our leadership team is a blend of technical expertise and industry experience.

We have an entrepreneurial mind-set and understand what it means to build a business.

Please click here or on a profile below to read more about our team




Stephen Geddes
Managing Director

Damian Simmons
Head of Administration & Accounting

Neil Clark
Chief Operations Officer

Yinghui Tang
Fund Accounting Manager

Stephen Doherty
Investment Operations Manager

Minal Sharma
Senior Compliance Manager




Fund Administration & Accounting

Flexible, cost-effective back and middle office services from set up and “know your customer” through to accounting and reporting.

Read more

Custody & Nominee

Specialist knowledge of tax efficient structures to deliver the greatest benefits through the life cycle of the fund.

Read more

Middle Office & Reporting

Full suite of enterprise-level services delivered at a cost commensurate with the fund’s size.

Read more