Safety campaigner Paul Lamplugh has been made an OBE in the Queen's New Year Honours List.
The trust has a network of 700 personal safety trainers and tutors
Mr Lamplugh and his wife Diana set up a trust after their daughter Suzie went missing in 1986.
Mrs Lamplugh, who was appointed an OBE in 1992, had to step down from the personal safety charity after being diagnosed with Alzheimer's disease.
Her 73-year-old husband, who also had to step down to look after her, said the honour was "support for the trust."
"I'm so pleased that the work we did together for 18 years has been recognised in this way and we hope to carry it forward," he said.
"The sad thing is I can't tell her, but it is wonderful, I just can't believe it.
"I always wanted to do my little bit to change the world, like everyone else, and I think we have done.
"I feel this is support for the Trust to achieve Diana's vision."
Mrs Lamplugh was diagnosed with the disease in 2003 after a stroke which led to almost a complete loss of memory.
Estate agent Suzy went missing while showing a client a property in Fulham, west London.
Her body has never been found and in 1993 she was declared dead, presumed murdered.
Mrs Lamplugh and her husband set up the Suzy Lamplugh Trust to help people lead safer lives.
It now has 16 staff and a network of more than 700 personal safety trainers and tutors throughout the UK.