The events in July and September have seen tens of thousands gather at the sites in Staffordshire, Scotland and Somerset.
Speaking on Premier's News Hour, spokesman Jonny Goodchild said:"It has been absolutely amazing.
"I don't think we're doing anything special - we're just thankful for all God is doing."
Calling on youth workers to continue to invest in the young people who've found faith, he said: "It's that day to day relational youth work, getting alongside these young people, really journeying with them.
"Programmes are important but I think it's far more about relationship."
Soul Survivor and other Christians festivals are, in many ways, a highlight of the youth ministry year; they're our 21st Century equivalent of a pilgrimage to the Temple. In our age of cynicism it's easy to get jaded, but this rhythm and pattern of youth ministry life is something to celebrate - especially when we're seeing over 1000 young people decide to follow Jesus. Obviously, the hard work starts when those teenagers return to churches and youth groups.
Jamie Cutteridge, Premier Youthwork Magazine
Those attending camp on the site for five days and go to morning and evening meetings.
Soul Survivor says people "spend time worshipping God with music, learning more about Him through His word (the Bible) and waiting on the Holy Spirit to change us and equip us to live lives for Him."
Along with the meetings, young people can take part in a wide range of activities, seminars and gigs.
Founded by Mike Pilivachi, the first festival in 1993 attracted just under two thousand teenagers. Now upwards of 25,000 attend over a four week period.
This year's speakers included XLP founder Patrick Regan and former Youth for Christ National Director Gavin Calver.