The insurer, the UK's largest, has appointed a dedicated tracing agency, Assets Reunited, to help find customers who had forgotten to claim their money.
Commenting on the developments, Cathryn Riley, chief operating officer at Norwich Union said: "We are starting to see some fantastic progress in returning the money to customers who haven't claimed.
"The great feedback we've received from our customers makes it clear that they appreciate the work we've undertaken to reunite them with their money and they value our efforts to add to their prosperity.
"We are currently returning over a million pounds a month to our customers - something that we believe is genuinely making a positive difference to peoples lives, and that's a brilliant start. There's often a good reason the money has remained unclaimed; such as changes of address or lost policies. Despite this, we've given good news about old policies to over three thousand five hundred customers, providing them with some much needed peace of mind, at a time when money worries are on the increase
"We have made contact with a further ten thousand customers and are in the process of reuniting them with an additional £25m.
"We have learned a great deal over the last few months and have added a dedicated tracing agency, to our team to continue the good work and help us reach as many people as we can.
"The issue of unclaimed assets affects the whole industry and it's not going to go away on its own. We are taking decisive steps to address the matter and we encourage the rest of the industry to follow our lead."
If you believe you may be entitled to recover unclaimed money from Norwich Union visit our website: http://www.norwichunion.com/existing-customers/trace-policies/
