- John van Bon (Affine distance-transitive groups, 7 May 1990; copromotor),
- Hans Cuypers (Geometries and permutation groups of small rank, 20 March 1989; copromotor),
- Jan Draisma (Lie algebras of vector fields, 4 June 2002),
- Rob Eggermont (Finiteness properties of varieties with large group actions, 27 May 2015, second promotor Jan Draisma),
- Hugo Elbers (Connecting informal and formal mathematics, 28 May 1998),
- Yael Fleischmann (A geometric approach to classical Lie algebras, 26 May 2015, copromotor Hans Cuypers),
- Bart Frenk (Tropical varieties, maps and gossip, 13 March 2013, copromotor Jan Draisma),
- Dié Gijsbers (BMW Algebras of Simply Laced Type, 1 November 2005),
- Willem de Graaf (Algorithms for finite-dimensional Lie algebras, 10 June 1997),
- Ralf Köhl (né Gramlich) (On graphs, geometries, and groups of Lie type, 23 May 2002, copromotor Hans Cuypers),
- Sergei Haller (Computing Galois cohomology and forms of linear algebraic groups, 12 October 2005),
- Maxim Hendriks (Platonic maps of low genus, 4 February 2013),
- Jack Koolen (Euclidean representations and substructures of distance-regular graphs, 21 Sep 1994; second promotor),
- Daan Krammer (The conjugacy problem for Coxeter groups, 10 October 1994),
- Nguyen Van Minh Man (Computer-algebraic methods for the construction of designs of experiments, 22 September 2005),
- Shoumin Liu (Brauer algebras of type B, 6 June 2012),
- Tim Mussche (Extremal combinatorics in generalized Kneser graphs, 16 April 2009; second promotor),
- Jos in't panhuis (Lie algebras, extremal elements, and geometries, 12 Oct 2009),
- Erik Postma (From Lie algebras to geometry and back, 8 May 2007),
- Remko Riebeek (Computations in association schemes and algebraic groups, 20 May 1998; second promotor),
- Dan Roozemond (Algorithms for Lie algebras of algebraic groups, 18 March 2010),
- Sander van Rijnswou (Testing the equivalence of planar curves, 11 April 2001),
- Marc Smeets (Parameter shifts in hypergeometric functions, 10 May 2000),
- Rikko Verrijzer (Context in interactive mathematics, personalizing mathematics, 3 December 2015, copromotor Hans Cuypers).

- Stijn van Dongen (1993, Algorithms for determining the sign of an exact real number),
- Jan Draisma (June 1998, An algebraic approach to Lie point symmetries of ordinary equations),
- Bart Frenk (August 2006, Generalized Brauer algebras),
- Dié Gijsbers (April 2001, Linear representations of Artin groups of finite type),
- Jan Willem Knopper (June 2006, Automatic proofs of graph nonisomorphism),
- Chris Krook (January 2004,
Some graphs related to E
_{7}(*q*)), - Jos in't panhuis (June 2005, Planar diagrams and combinatorial tensor categories),
- Erik Postma (January 2003, Covers of graphs related to the general linear group),
- Vincent Remie (August 2005, Efficient optimization of electronic circuits),
- Wannes Rosius (November 2005, Distance transitive graphs of type F
_{4}), - Marc Smeets (October 1995, A natural extension of the Weyl group),
- Rudolf Tange (June 2002, Extremal elements in Lie algebra),
- Dan Roozemond (August 2005, Lie algebras generated by extremal elements).