Aczel, Peter
University of Manchester - Philosophy and foundations of mathematics and computing, mathematical logic, categorical logic.
http://www.cs.man.ac.uk/~petera/
Avigad, Jeremy
Carnegie Mellon University - Proof theory, constructive mathematics, proof complexity, the history and philosophy of mathematics.
http://www.andrew.cmu.edu/~avigad/
Awodey, Steve
Carnegie Mellon University - Category theory, logic, history and philosophy of mathematics and logic.
http://www.andrew.cmu.edu/user/awodey/
Baldwin, John T.
University of Illinois, Chicago - Model theory (finite and infinite).
http://www.math.uic.edu/~jbaldwin/
Bartoszynski, Tomek
Boise State University - Set theory.
http://diamond.boisestate.edu/~tomek/
Blass, Andreas R.
University of Michigan, Ann Arbor - Set theory, finite combinatorics, theoretical computer science.
http://www.math.lsa.umich.edu/~ablass/
Bouscaren, Elisabeth
CNRS / University of Paris 7 - Model theory and algebraic geometry.
http://www.logique.jussieu.fr/www.elibou/
Buechler, Steven
University of Notre Dame - Model theory.
http://www.nd.edu/~steve/
Burris, Stanley
University of Waterloo - Universal algebra, logic, computers.
http://www.thoralf.uwaterloo.ca/
Buss, Samuel R.
University of California, San Diego - Proof theory, computational complexity.
http://math.ucsd.edu/~sbuss/
Carnielli, Walter A.
State University of Campinas, Brazil - Foundations of non-classical logics, many-valued logics, paraconsistent logics, finite and infinite combinatorics.
http://www.unicamp.br/cle/carniell.htm
Chaitin, Gregory J.
IBM Research - Algorithmic information theory.
http://www.cs.auckland.ac.nz/CDMTCS/chaitin/
Cummings, James
Carnegie Mellon University - Set theory.
http://www.math.cmu.edu/users/jcumming/
Danos, Vincent
University of Paris 7 - Proof theory, linear logic.
http://www.logique.jussieu.fr/www.danos/
Ebbinghaus, Heinz-Dieter
University of Freiburg - Finite model theory.
http://logik.mathematik.uni-freiburg.de/personen/Ebbinghaus.html
Enderton, Herbert B.
UCLA - Recursion theory, definability theory.
http://www.math.ucla.edu/~hbe/
Etchemendy, John
Stanford University - Philosophical logic, semantics, and philosophy of language.
http://www-csli.stanford.edu/hp/etchemendy.html
Feferman, Solomon
Stanford University - Proof theory,theory of computation, foundations of mathematics, philosophy of mathematics, history of modern logic.
http://math.Stanford.EDU/~feferman/
Fitting, Melvin
City University of New York - Logic in computer science, mathematics, philosophy.
http://comet.lehman.cuny.edu/fitting/
Flum, Jörg
University of Freiburg - Finite model theory.
http://logik.mathematik.uni-freiburg.de/personen/Flum.html
Foreman, Matthew
UC Irvine - Set theory.
http://www.math.uci.edu/faculty/mforeman.html
Forster, T. E.
University of Cambridge - Set theory, type theory.
http://www.dpmms.cam.ac.uk/~tf/
Friedman, Sy D.
University of Vienna and MIT - Set theory.
http://www-math.mit.edu/~sdf/
Gehrke, Mai
New Mexico State University - Nonstandard mathematics, operators on boolean algebras, fuzzy mathematics, universal algebra, general topology, posets and lattices.
http://www.math.nmsu.edu/mgehrke/mgehrke.html
Gerla, Giangiacomo
University of Salerno, Italy - Fuzzy logic, percentage logic, pointless geometry.
http://www.dmi.unisa.it/people/gerla/www/
Goldstern, Martin
University of Technology, Vienna - Set theory.
http://info.tuwien.ac.at/goldstern/
Grossberg, Rami
Carnegie Mellon University - Model theory.
http://www.math.cmu.edu/users/rami/
Herwig, Bernhard
University of Freiburg - Model theory.
http://sunpool.mathematik.uni-freiburg.de/home/herwig/
Hodges, Wilfrid
University of London - Model theory.
http://www.maths.qmw.ac.uk/~wilfrid/
Holmes, Randall
Boise State University - Set theory: New Foundations, automated theorem proving.
http://diamond.boisestate.edu/~holmes/
Howard, Paul
Eastern Michigan University - Axiom of choice.
http://www.emunix.emich.edu/~phoward/
Hustadt, Ullrich
University of Liverpool - Resolution-based and tableaux-based decision procedures for decidable fragments of first-order logic.
http://www.csc.liv.ac.uk/~ullrich/
Hyland, J. Martin E.
University of Cambridge - Categorical logic, game semantics and logic in computer science.
http://www.dpmms.cam.ac.uk/~martin/index.html
Jech, Thomas
Pennsylvania State University - Set theory.
http://www.math.psu.edu/jech/
Jockusch, Carl G.
University of Illinois, Urbana Champaign - Recursion theory.
http://www.math.uiuc.edu/~jockusch/
Junker, Markus
University of Freiburg - Model theory.
http://sunpool.mathematik.uni-freiburg.de/home/junker/Junker-eng.html
Kaiser, Klaus
University of Houston - Mathematical logic, universal algebra, lattice theory and logic programming.
http://math.uh.edu/~klaus/
Kanamori, Akihiro
Boston University - Set theory.
http://math.bu.edu/people/aki/
Kaye, Richard
University of Birmingham - Model theory.
http://for.mat.bham.ac.uk/R.W.Kaye/
Kechris, Alexander S.
Caltech - Foundations of mathematics, mathematical logic and set theory, interactions with analysis.
http://www.math.caltech.edu/people/kechris.html
Kunen, Kenneth
University of Wisconsin, Madison - Set theory.
http://www.math.wisc.edu/~kunen/
Lafont, Yves
University of Marseille II - Linear logic, lambda calculus, proof theory, term rewriting. Lafont invented the theory of interaction nets, an elegant theory of graph rewriting.
http://iml.univ-mrs.fr/~lafont/welcome.html
Larson, Jean A.
University of Florida - Set theory, combinatorics.
http://www.math.ufl.edu/~jal/
Lascar, Daniel
CNRS / University of Paris 7 - Model theory.
http://www.logique.jussieu.fr/www.lascar/
Lempp, Steffen
University of Wisconsin, Madison - Computability, recursion theory.
http://www.math.wisc.edu/~lempp/
Lessmann, Olivier
University of Illinois, Chicago - Model theory.
http://www.math.uic.edu/~lessmann/
Luo, Zhaohui
Durham University, UK - Type theory, theoretical computer science and semantics of natural languages.
http://www.dur.ac.uk/~dcs0zl/
Makowsky, Johann (Janos) A.
Technion, Israel - Logic in computer science, finite model theory.
http://www.cs.technion.ac.il/~janos/index.html
Marcos, João
State University of Campinas, Brazil - Philosophical logic, paraconsistent, many-valued and modal logics.
http://www.geocities.com/jm_logica/
Marker, David
University of Illinois, Chicago - Model theory.
http://www.math.uic.edu/~marker/
Matiyasevich, Yuri
Steklov Institute, St. Petersburg - Algorithmical number theory.
http://logic.pdmi.ras.ru/~yumat
McKenzie, Ralph
Vanderbildt University and UC Berkeley - Algebra, logic, combinatorics.
http://www.math.vanderbilt.edu/~mckenzie/
Miller, Dale
Penn State University - Linear logic, proof search and declarative programming languages.
http://www.cse.psu.edu/~dale/
Mitchell, William
University of Florida - Set theory.
http://www.math.ufl.edu/~mitchell/
Monk, Donald
University of Colorado, Boulder - Boolean algebras.
http://www.Colorado.EDU/math/courses/monkd/
Moreno, Javier
University of Illinois, Urbana-Champaign - Model theory and applications.
http://www.math.uiuc.edu/~jamoreno
Nelson, Edward
Princeton University - Bounded arithmetic, automated proof verification (QED).
http://www.math.princeton.edu/~nelson/index.html
Nerode, Anil
Cornell University - Computability theory, logic in computer science, history of logic.
http://www.math.cornell.edu/~anil/
Nies, Andre
University of Chicago - Recursion theory.
http://www.math.uchicago.edu/~nies/
Ong, C.-H. Luke
Merton College, Oxford - Categorical logic, game semantics, type theory, lambda calculus, semantics of programming languages, and sequentiality.
http://web.comlab.ox.ac.uk/oucl/people/luke.ong.html
Paris, Jeff
University of Manchester - Mathematical Logic, in particular uncertain reasoning.
http://www.maths.man.ac.uk/mirror/www/hpage/jbp.htm
Pedicini, Marco
Institute for Applied Calculus, Rome - Theoretical computer science, linear logic, geometry of interaction, optimal reductions.
http://www.iac.rm.cnr.it/~marco/html
Pfenning, Frank
Carnegie Mellon University - Logic and programming languages, logical frameworks, type theory.
http://www.cs.cmu.edu/~fp/
Pitts, Andrew
University of Cambridge - Categorical logic, type theory, semantics of programming languages and logic in computer science.
http://www.cl.cam.ac.uk/~amp12/
Pratt, Vaughan
Stanford University - Linear logic, Chu spaces, foundations of mathematics, theoretical computer science and wearable computing.
http://boole.stanford.edu/pratt.html
Prest, Mike
University of Manchester - Algebra and model theory.
http://www.maths.man.ac.uk/~mprest/
Pym, David J.
Queen Mary and Westfield College - Semantics of programming languages, type theory, proof-search, logic programming, theorem proving.
http://www.dcs.qmw.ac.uk/~pym/
Quigley, Peter
Manchester Metropolitan University - Computational logic, formal methods, formal specification, automated reasoning and proof planning.
http://www.doc.mmu.ac.uk/STAFF/P.Quigley/
Rathjen, Michael
University of Leeds - Proof theory.
http://www.amsta.leeds.ac.uk/Pure/staff/rathjen/rathjen.html
Regnier, Laurent
University of Marseilles - Linear logic, lambda calculus and abstract machine interpretations.
http://iml.univ-mrs.fr/~regnier/
Restall, Greg
Macquarie University - Philosophy of logic, substructural logics.
http://www.phil.mq.edu.au/staff/grestall/
Robinson, Edmund
Queen Mary and Westfield College - Categorical logic and the semantics of programming languages and type theories.
http://www.dcs.qmw.ac.uk/~edmundr/
Scedrov, Andre
University of Pennsylvania - Logic in computer science, linear logic.
http://www.cis.upenn.edu/~scedrov/
Schmidt, Renate
University of Manchester - Modal logic, resolution theorem proving, resolution decision problems, relation algebras, Peirce algebras and knowledge representation.
http://www.cs.man.ac.uk/~schmidt/
Scott, Dana
Carnegie Mellon University - Model theory, set theory, foundations of logic and mathematics, symbolic mathematical computation.
http://www.cs.cmu.edu/~scott/
Vlad, Serban E.
Independent scholar, Bucharest - Asynchronous automata and binary valued mathematical analysis.
http://site.voila.fr/serban_e_vlad/
Setzer, Anton
Uppsala University - proof theory (ordinal analysis), Martin-Löf type theory.
http://www.math.uu.se/~setzer/
Shore, Richard A.
Cornell University - Recursion theory.
http://www.math.cornell.edu/~shore/
Sieg, Wilfried
Carnegie Mellon University - Proof theory, philosophy of mathematics, history of 19th and 20th century logic and mathematics.
http://www.hss.cmu.edu/departments/philosophy/people/directory/Wilfried_Sieg.html