Our network is our superpower – from the perspective of our family of 25 schools collaborating and sharing expertise to help girls learn without limits, or from life after school, as an alumna. The GDST has an alumnae network of more than 70,000 women – one of the largest of its kind anywhere in the world – from all walks of life and around the globe, who are there to support and inspire each other.
GDST Life is the gateway to this community, from the moment students go into Sixth Form, giving them the opportunity to connect with others across the GDST family of schools. And for alumnae, it opens the door to a host of new networking opportunities, unrivalled personal and professional connections, mentoring support, events, news and resources, groups and societies, and much, much more – for life.Join GDST Life’s Sydenham High Group
Visits & Reunions
Former pupils are always welcome back at Sydenham High, in and out of term time. If you’d be interested in visiting the school, have plans to organise a class reunion, or just want to let us know what you’ve been up to, we’d love to hear from you! Contact us at: or call us on 020 8557 7066.
Sydenham High School Alumnae Association
Sydenham High’s Old Girls’ Association is now coordinated by Sydenham High School.
If you were on the OGA mailing list you will now have been transferred to the main alumnae database.
If you are currently an undergraduate, there are networking opportunities between GDST girls at most universities as well as a growing list of career groups.
Mentoring and career guidance
In a time-honoured tradition, we look to our alumnae to help current pupils as mentors and career guides. We would be delighted to hear from former pupils who can offer their time by way of talks, individual mentoring or offers of work experience. Please contact us at or call us on 0208 557 7066 if you can help.
Staying in touch
To update your details, you can email , or post a letter to the school for the attention of Nikola Hall. Alternatively, you can update your basic details on theGDST website