Aczel, Peter
University of Manchester - Philosophy and foundations of mathematics and computing, mathematical logic, categorical logic.

Avigad, Jeremy
Carnegie Mellon University - Proof theory, constructive mathematics, proof complexity, the history and philosophy of mathematics.

Awodey, Steve
Carnegie Mellon University - Category theory, logic, history and philosophy of mathematics and logic.

Baldwin, John T.
University of Illinois, Chicago - Model theory (finite and infinite).

Bartoszynski, Tomek
Boise State University - Set theory.

Blass, Andreas R.
University of Michigan, Ann Arbor - Set theory, finite combinatorics, theoretical computer science.

Bouscaren, Elisabeth
CNRS / University of Paris 7 - Model theory and algebraic geometry.

Buechler, Steven
University of Notre Dame - Model theory.

Burris, Stanley
University of Waterloo - Universal algebra, logic, computers.

Buss, Samuel R.
University of California, San Diego - Proof theory, computational complexity.

Carnielli, Walter A.
State University of Campinas, Brazil - Foundations of non-classical logics, many-valued logics, paraconsistent logics, finite and infinite combinatorics.

Chaitin, Gregory J.
IBM Research - Algorithmic information theory.

Cummings, James
Carnegie Mellon University - Set theory.

Danos, Vincent
University of Paris 7 - Proof theory, linear logic.

Ebbinghaus, Heinz-Dieter
University of Freiburg - Finite model theory.

Enderton, Herbert B.
UCLA - Recursion theory, definability theory.

Etchemendy, John
Stanford University - Philosophical logic, semantics, and philosophy of language.

Feferman, Solomon
Stanford University - Proof theory,theory of computation, foundations of mathematics, philosophy of mathematics, history of modern logic.

Fitting, Melvin
City University of New York - Logic in computer science, mathematics, philosophy.

Flum, Jörg
University of Freiburg - Finite model theory.

Font, Josep Maria
University of Barcelona - Algebraic logic.

Foreman, Matthew
UC Irvine - Set theory.

Forster, T. E.
University of Cambridge - Set theory, type theory.

Friedman, Sy D.
University of Vienna and MIT - Set theory.

Gehrke, Mai
New Mexico State University - Nonstandard mathematics, operators on boolean algebras, fuzzy mathematics, universal algebra, general topology, posets and lattices.

Gerla, Giangiacomo
University of Salerno, Italy - Fuzzy logic, percentage logic, pointless geometry.

Goldstern, Martin
University of Technology, Vienna - Set theory.

Grossberg, Rami
Carnegie Mellon University - Model theory.

Herwig, Bernhard
University of Freiburg - Model theory.

Hjorth, Greg
UCLA - Descriptive set theory, countable models, definable equivalence relations.

Hodges, Wilfrid
University of London - Model theory.

Holmes, Randall
Boise State University - Set theory: New Foundations, automated theorem proving.

Howard, Paul
Eastern Michigan University - Axiom of choice.

Hustadt, Ullrich
University of Liverpool - Resolution-based and tableaux-based decision procedures for decidable fragments of first-order logic.

Hyland, J. Martin E.
University of Cambridge - Categorical logic, game semantics and logic in computer science.

Jech, Thomas
Pennsylvania State University - Set theory.

Jockusch, Carl G.
University of Illinois, Urbana Champaign - Recursion theory.

Junker, Markus
University of Freiburg - Model theory.

Kaiser, Klaus
University of Houston - Mathematical logic, universal algebra, lattice theory and logic programming.

Kanamori, Akihiro
Boston University - Set theory.

Kaye, Richard
University of Birmingham - Model theory.

Kechris, Alexander S.
Caltech - Foundations of mathematics, mathematical logic and set theory, interactions with analysis.

Kunen, Kenneth
University of Wisconsin, Madison - Set theory.

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.

Larson, Jean A.
University of Florida - Set theory, combinatorics.

Lascar, Daniel
CNRS / University of Paris 7 - Model theory.

Lempp, Steffen
University of Wisconsin, Madison - Computability, recursion theory.

Lessmann, Olivier
University of Illinois, Chicago - Model theory.

Luo, Zhaohui
Durham University, UK - Type theory, theoretical computer science and semantics of natural languages.

Makowsky, Johann (Janos) A.
Technion, Israel - Logic in computer science, finite model theory.

Marcos, João
State University of Campinas, Brazil - Philosophical logic, paraconsistent, many-valued and modal logics.

Marker, David
University of Illinois, Chicago - Model theory.

Matiyasevich, Yuri
Steklov Institute, St. Petersburg - Algorithmical number theory.

McKenzie, Ralph
Vanderbildt University and UC Berkeley - Algebra, logic, combinatorics.

Miller, Dale
Penn State University - Linear logic, proof search and declarative programming languages.

Mitchell, William
University of Florida - Set theory.

Monk, Donald
University of Colorado, Boulder - Boolean algebras.

Moreno, Javier
University of Illinois, Urbana-Champaign - Model theory and applications.

Moschovakis, Yiannis N.
UCLA - Set theory, recursion theory.

Nelson, Edward
Princeton University - Bounded arithmetic, automated proof verification (QED).

Nerode, Anil
Cornell University - Computability theory, logic in computer science, history of logic.

Nies, Andre
University of Chicago - Recursion theory.

Ong, C.-H. Luke
Merton College, Oxford - Categorical logic, game semantics, type theory, lambda calculus, semantics of programming languages, and sequentiality.

Paris, Jeff
University of Manchester - Mathematical Logic, in particular uncertain reasoning.

Pedicini, Marco
Institute for Applied Calculus, Rome - Theoretical computer science, linear logic, geometry of interaction, optimal reductions.

Pfenning, Frank
Carnegie Mellon University - Logic and programming languages, logical frameworks, type theory.

Pitts, Andrew
University of Cambridge - Categorical logic, type theory, semantics of programming languages and logic in computer science.

Pratt, Vaughan
Stanford University - Linear logic, Chu spaces, foundations of mathematics, theoretical computer science and wearable computing.

Prest, Mike
University of Manchester - Algebra and model theory.

Pym, David J.
Queen Mary and Westfield College - Semantics of programming languages, type theory, proof-search, logic programming, theorem proving.

Quigley, Peter
Manchester Metropolitan University - Computational logic, formal methods, formal specification, automated reasoning and proof planning.

Rathjen, Michael
University of Leeds - Proof theory.

Regnier, Laurent
University of Marseilles - Linear logic, lambda calculus and abstract machine interpretations.

Restall, Greg
Macquarie University - Philosophy of logic, substructural logics.

Robinson, Edmund
Queen Mary and Westfield College - Categorical logic and the semantics of programming languages and type theories.

Scedrov, Andre
University of Pennsylvania - Logic in computer science, linear logic.

Schmidt, Renate
University of Manchester - Modal logic, resolution theorem proving, resolution decision problems, relation algebras, Peirce algebras and knowledge representation.

Scott, Dana
Carnegie Mellon University - Model theory, set theory, foundations of logic and mathematics, symbolic mathematical computation.

Vlad, Serban E.
Independent scholar, Bucharest - Asynchronous automata and binary valued mathematical analysis.

Setzer, Anton
Uppsala University - proof theory (ordinal analysis), Martin-Löf type theory.

Shore, Richard A.
Cornell University - Recursion theory.

Shramko, Yaroslav
State Pedagogical University, Kryvyi Rih, Ukraine - Intuitionistic and relevant logics.

Sieg, Wilfried
Carnegie Mellon University - Proof theory, philosophy of mathematics, history of 19th and 20th century logic and mathematics.

Sipser, Michael
MIT - Complexity theory.

Slaman, Theodore A.
University of California, Berkeley - Recursion theory.

Soare, Robert I.
University of Chicago - Recursion theory.

Solovay, Robert M.
University of California, Berkeley - Proof theory.

Statman, Richard
Carnegie Mellon University - Theory of computation, lambda calculus, combinatory logic.

Stewart, Charles
Technische Universität Berlin, Theory and Formal Specifications group - Proof theoretic semantics, lambda calculus, linear logic, theoretical computer science, philosophy of language.

Taylor, Paul
Queen Mary and Westfield College, London - Foundations of Mathematics and Computation.

Vickers, Steven
Imperial College, London - Geometric logic, topos theory, quantales and semantics of programming languages.

Wansing, Heinrich
Institute of Logic and the Philosophy of Science, Leipzig - Substructural and non-classical logics, modal logic, proof-theoretic semantics, philosophy of logic, philosophy of language.

Welch, Philip
University of Bristol - Set theory, inner models, descriptive set theory.

White, Graham
Queen Mary and Westfield College, London - Philosophy and linear logic.

Wilkie, Alex
Oxford University - Models of arithmetic.

Wilmers, George
University of Manchester - Applications of mathematical logic in the foundations of uncertain reasoning; natural prior probability distributions in uncertain reasoning.

Zach, Richard
University of Calgary - Non-classical logics, proof theory, philosophy of mathematics, history and philosophy of logic.

Ziegler, Martin
University of Freiburg - Model theory.

Zilber, Boris
University of Oxford - Model theory.

Hindley, J. R.
University of Wales, Swansea - Lambda-calculus, combinatory logic and type-theory.

Friedman, Harvey
Ohio State University - Model theory, proof theory, intuitionism, recursion theory, set theory, complexity theory.

Hähnle, Reiner
Chalmers University of Technology, Sweden - Tableau-based automated theorem proving, many-valued logic, formal verification.

Chatzidakis, Zoé
CNRS/University of Paris 7 - Model theory.

Darnière, Luck
University of Angers, France - Model theory.

Simpson, George
Penn State University - Fuondations of mathematics and logic.

Cholak, Peter
University of Notre Dame - Recursion theory.

Knight, Julia F.
University of Notre Dame - Recursion theory.

Pym, David
University of Bath, England - Proof theory, logic and computation.

Carlstrom, Jesper
Stockholm University - Constructive type theory and related mathematics.

Pollett, Chris
San Jose State University - Logic, bounded arithemtic, computational complexity and quantum computation.

Mileti, Joe
University of Illinois at Urbana-Champaign - Computability theory.

Kastermans, Bart
University of Michigan - Set theory.

Rubin, Jean E.
Purdue University - Set theory, axiom of choice.

Insall, Matt
University of Missouri, Rolla - Pure and applied logic, foundations, harmonic analysis, algebra, metric spaces.

Wehmeier, Kai
UC Irvine - semantics and proof theory of intuitionistic arithmetic, logical analysis of modal discourse, the logic of Gottlob Frege.

Maddy, Penelope
University of California Irvine - Philosophy of logic and mathematics.

Guglielmi, Alessio
Technische Universitaet Dresden - Proof Theory.

Plotkin, Gordon
Institute for Communicating and Collaborative Systems, UK - denotational and operational semantics of programming languages, type theory; domain-theoretic and categorical analyses of computation, proof theory, the semantics of natural language, process calculi, computational biology.

Scott Weinstein
University of Pennsylvania - Finite model theory, learning theory.

Parikh, Rohit
Brooklyn College - Reasoning about knowledge, belief revision, game theory, philosophy of language.

Artemov, Sergei
City University of New York Graduate Center - Proof theory, logic of proofs.

Van Benthem, Johan
University of Amsterdam and Stanford University - Modal logic and a wide range of other areas in logic.

Detlefsen, Michael
University of Notre Dame - Formal logic, philosophy of mathematics.

Beklemishev, Lev
Utrecht University and Steklov Mathematical Institute of Moscow - Proof theory, modal logics.

Razborov, Alexander
Moscow Steklov Mathematical Institute - Boolean circuits.

Lindell, Steven
Haverford College - Finite model theory, descriptive complexity.

Moss, Lawrence
Indiana University - Applied logic.

Leivant, Daniel
Indiana University - Computational complexity.

Dosen, Kosta
University of Belgrade - Proof theory, category theory.

Ono, Hiroakira
Japan Advanced Institute of Science and Technology - Nonclassical logic, substructural logics, logic of knowledge and belief, cumulative reasoning.

Van Dalen, Dirk
Utrecht University - Historical aspects of logic, philosophy of mathematics.

Levesque, Hector
University of Toronto - Knowledge representation.

Lakemeyer, Gerhard
Aachen University of Technology - Knowledge-based systems.

Andrews, Peter B.
Carnegie Mellon University - Type theory, automated theorem proving.

Japaridze, Giorgi
Villanova University - computability logic, game semantics, provability logic.

Barendregt, Henk
Radboud University Nijmegen - Lambda calculus, type theory and formalising mathematical vernacular.

Mayberry, John
University of Bristol. Foundations of mathematics. Publications, teaching material.