Ivo Hofacker (all parts)
Peter Stadler (design, documentation, cluster algorithms)
Walter Fontana (suboptimal folding, pre-historic implementation of mfe folding)
Stefan Wuchty (suboptimal folding)
Stephan Bernhart (cofolding, local folding)
Ulli Mueckstein (RNAup)
Ronny Lorenz (redesign for version 2.0, documentation, circfolding, RNA2Dfold, RNAparconv and more)