Ben Judge and Dave Woozley have become the first Crawley players to put pen to paper on new contracts.
The defenders were offered one-year deals last week after helping Reds beat Conference relegation as player-caretaker managers alongside John Yems, who was sacked ten days ago.
Captain Dannie Bulman and winger Tony Scully have also agreed to take up the option on their current deals to stay at Broadfield Stadium next season.
The rest of the squad are out of contract and are due to hold talks over their futures in the next few weeks.
Judge, who joined Reds in 2001 and is the longest serving player, said: "It's nice now to be settled unlike last year when we didn't know right up until the opening day of the season whether we would be starting the season at all.
"I can enjoy the summer knowing I will be at Crawley again next year and focus on the new season."
Woozley, who joined from Oxford United in 2005, said: "It is good to know where I will be playing my football next season and I am glad it is at Crawley.
"We had a tough year but it was also very enjoyable. We had great team spirit and it was a pleasure to be involved with some of those lads.
"We have to start the season with an open mind and aim high. You have to look to progress each season."
Judge and Woozley were asked to take charge until the end of the campaign last November following the sacking of John Hollins.
They are both looking forward to returning to their role as players and working with a new manager.
The club are talking to potential candidates after advertising the position following Yems' departure.
Judge said: "Once the new manager comes in things will hopefully continue to progress. David and I always knew the club intended to appoint a new manager, it was something we knew was going to happen when it was first given to us.
"If we can add four or five players to the squad we had last season, plus the influence of the new manager, hopefully we can push on next season and have a good year."
Woozley said: "It (managing) was enjoyable experience and I would do it again if I was asked but playing again is the number one priority for next season."
Which players would you like to see Crawley sign this summer? Let us know your thoughts
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