Membership Eligibility
As the name implies, eligibility was originally after twenty-one years' service! However to reflect the realities of today's career profiles this has been reduced to fifteen years' service.
Staff who have worked for companies that have been acquired by Costain also need to have had fifteen years’ service, at least two of which must be post-acquisition.
Exclusive Benefits
Social events
Participate in social events held throughout the year, whether that's a visit to landscaped gardens, a museum, a boat trip or a night out on the town!
In recent years we have organised events to:
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Savill Gardens in Surrey
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Warwick Castle
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Windsor Races
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Virtual darts in Manchester
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Golf day at Temple Golf Club in Berkshire
Annual dinner and AGM
Held each spring at the Kia Oval cricket ground at Kennington, London
In April 2026 we had 180 colleagues gather for a fantastic evening of chats and stories!
Newsletter and bulletins
Stay informed with news from current Costain projects and maintain lifelong friendships with the UK and international group.
How to Join the Club
01
Check Eligibility
Ensure you are a current or former Costain Group employee.
02
Complete Form
Fill out our simple digital application form with your employment details and contact information.
03
Become a member
Once verified, a one-off fee of £35 is required, then start enjoying the benefits.