Theoretical mathematics, statistics, and computer science programs are listed here. Look for overlapping programs under the science section since some biostatistics and physics programs also host mathematics students. Also, go to the corporate profile section for programming internships.
 Arizona State Univ. Mathematical and Theoretical Biology Institute – Mathematics REU
Deadline: March 1st/ Requirements: Sophomores, Juniors/ Location: Tempe, Arizona/ Fields: Mathematics, Statistics/ Pay: Varies
This intensive eight-week summer research experience for undergraduates in Tempe, Arizona prepares promising young scientists interested in working at the interface of mathematics, statistics and the natural and social sciences for the rigors of graduate studies. International students are accepted, but only based on limited available funds.
 Bard College – Mathematics REU
Deadline: March 1st/ Requirements: Sophomores, Juniors/ Location: Annandale, New York/ Fields: Mathematics, Physics, Computer Science/ Pay: Unpaid
The Bard College REU in Mathematics & Computation is an eight week summer program in which undergraduates work in groups with individual faculty members on research projects in pure and applied mathematics, mathematical physics, and mathematical computation. Throughout the summer, students will be exposed to theoretical constructs, computational techniques, and real world applications. International students must find their own funding.
 Boise State Univ. – Mathematics REU
Deadline: March 1st/ Requirements: Undergraduates/ Location: Boise, Idaho/ Fields: Mathematics/ Pay: Unpaid
The Boise State REU program in Complexity in Algebra, Geometry and Applications is an eight week summer program in which undergraduate students experience independent research in mathematics motivated by applications to information security or genome biology. We welcome foreign undergraduates attending a U.S. educational institution who have funding from other sources to also apply to our program.
 Brown Univ. Institute for Computational and Experimental Research in Mathematics - Summer Research Program
Deadline: March 1st/ Requirements: Sophomores, Juniors/ Location: Fresno, California/ Fields: Mathematics/ Pay: $3000
The 2013 Summer@ICERM program is designed for a select group of 10-12 undergraduate scholars. Students will work in small groups of two or three, supervised by faculty advisors and aided by teaching assistants. The faculty advisors will provide a list of interesting open problems in geometry and in dynamical systems.
 California State Univ. at Fresno – Mathematics REU
Deadline: March 1st/ Requirements: Sophomores, Juniors/ Location: Fresno, California/ Fields: Mathematics/ Pay: Unpaid
The mathematics REU at Fresno State is an exciting eight-week long program with the following goals: actively involve students in mathematics research, improve student writing, presentation, and technical skills through structured workshops, increase awareness and intention to participate in mathematics graduate degree programs among underrepresented minority students and other participants. International students will be considered if they have alternative funding.
Deadline: February 15th/ Requirements: Undergraduates/ Location: Clemson, South Carolina/ Fields: Mathematics/ Pay: Unpaid
Participants will be introduced to various tools, techniques and problems from computational algebraic geometry, combinatorics and number theory. The participants will be divided into teams of two or three. Each team will then pick a problem on which to focus for the remainder of the REU. The goal of the program will be to help students attain a higher level of independence in mathematical research by giving them the opportunity to take part in a significant and interesting research project. International students are welcome to apply, but they will not be financially supported.
 Fairfield Univ. – Mathematics REU
Deadline: March 4th/ Requirements: Undergraduates/ Location: Fairfield, Connecticut/ Fields: Mathematics/ Pay: Unpaid
Students in the program will work together in small groups—each group in close consultation with a faculty mentor—on research topics drawn from the faculty mentor's field of expertise. International students at U.S. undergraduate institutions may apply, but are not eligible for funding due to NSF restrictions.
 Penn State Univ. – MASS Mathematics REU
Deadline: March 1st/ Requirements: Undergraduates/ Location: University Park, Pennsylvania/ Fields: Mathematics/ Pay: Unpaid
In the summer of 2013 the Mathematics Department of the Pennsylvania State University will host a Research Experiences for Undergraduates site. Participants will be selected from qualified applicants. We encourage students to apply for both, Summer REU and our MASS program which runs in the fall semester of each year. Participation in REU followed by MASS provides an opportunity for completing a more substantial long-term research project. Applications from international students are accepted, but if admitted, they will have to cover their own expenses.
 Rutgers Univ. – CCICADA Mathematics REU
Deadline: January 31st/ Requirements: Sophomores, Juniors/ Location: Piscataway, New Jersey/ Fields: Mathematics, Computer Science/ Pay: $3600
DIMACS, CCICADA and the Rutgers University Mathematics Department invite applications for a NSF/DHS Research Experience for Undergraduates (REU) program. The program entails eight weeks of intensive work during the summer; students are strongly encouraged to continue their projects during the following academic year. Foreign students enrolled at a U.S. university are eligible under the CCICADA program.
 Texas State Univ. – Mathematics REU
Deadline: March 1st/ Requirements: Undergraduates/ Location: San Marcos, Texas/ Fields: Mathematics/ Pay: Unpaid
The program will start with presentations by the faculty of the topics and problems followed by the formation of the core groups based on the students’ interests. The first two weeks consists mainly of studying the background material necessary to begin work on the problems. By the end of the second week all students will be engaged in original research under close supervision of a faculty member. The students will continue to work in small groups on the research topics throughout the summer. International students at U.S. undergraduate institutions may apply, but are not eligible for funding due to NSF restrictions.
 Univ. of California Los Angeles Institute for Pure and Applied Mathematics - Research in Industrial Projects for Students
Deadline: February 12th/ Requirements: Undergraduates/ Location: Los Angeles, California/ Fields: Mathematics/ Pay: Not Specified
RIPS is a program for students who are enrolled in or have just completed an undergraduate (bachelors) degree. Students with a strong background in mathematics, some programming experience, and an interest in seeing how mathematics is used in the real world are encouraged to apply.
 Univ. of Minnesota-Duluth – Mathematics REU
Deadline: February 1st/ Requirements: Undergraduates/ Location: Duluth, Minnesota/ Fields: Mathematics/ Pay: Unpaid
The objective of the program is to provide an opportunity for eight carefully selected undergraduate students to learn firsthand the nature of mathematical research. The participants will conduct independent investigations, under the guidance of experienced researchers, on problems in combinatorics, graph theory and number theory. We do accept an occasional undergraduate who is studying at a U.S. institution who is neither US citizen nor permanent resident but cannot provide a stipend.
 Univ. of Minnesota-Minneapolis – Mathematics REU
Deadline: February 7th/ Requirements: Undergraduates/ Location: Minneapolis, Minnesota/ Fields: Mathematics/ Pay: Unpaid
Our 11th annual REU program in combinatorics will be held in the summer of 2013, at the University of Minnesota, Minneapolis. We expect at least 6-8 participants to spend 8 weeks in residence sometime between May 27, 2013 and August 2, 2013. Non-citizens may apply, and can be reimbursed for University dorm room and meal plan costs, as well as reasonable travel expenses up to $500.
 Univ. of Minnesota-Twin Cities Institute for Mathematics and its Applications – MAXIMA Mathematics REU
Deadline: February 22nd/ Requirements: Undergraduates/ Location: Minneapolis, Minnesota/ Fields: Mathematics, Statistics, Computer Science/ Pay: $3000
The program is designed to allow students to experience the excitement of doing research that is relevant to another field. Students will learn how to formulate domain-specific questions in mathematical ways and assimilate the ability to communicate across disciplines. The program will develop mathematical skills and expository argumentation. By the end of the summer, each team will produce a written report, an oral presentation, and a research poster. Three spots are funded by the IMA: these spots are open to US citizens and permanent residents, and to international students studying at U.S. institutions.
 Univ. of Wisconsin-Stout – Mathematics REU
Deadline: March 1st/ Requirements: Undergraduates/ Location: Menomonie, Wisconsin/ Fields: Mathematics/ Pay: Unpaid
The UW-Stout REU will be an 8-week program in which 8 students work with 5 faculty members on projects from Algebraic Geometry, Complex Analysis and Geometric Group Theory. With the 8:5 student to faculty ratio, students will experience much close collaboration and mentoring from participating faculty as they come to the cutting edge of research in these fields. REU stipends are available only to U.S. citizens or permanent residents.
 Williams College – SMALL Mathematics REU
Deadline: February 6th/ Requirements: Undergraduates/ Location: Williamstown Massachusetts/ Fields: Mathematics, Statistics/ Pay: $3400
The SMALL Undergraduate Research Project is a nine-week summer program in which undergraduates investigate open research problems in mathematics and statistics. Students receive a stipend of about $3400. Several board plans are available at reasonable rates, with housing included for free.
 Worcester Polytechnic Institute Center for Industrial Mathematics and Statistics – Mathematics REU
Deadline: March 1st/ Requirements: Undergraduates/ Location: Worchester, Massachusetts/ Fields: Mathematics/ Pay: $4300
The program is designed to provide a glimpse of the ways that advanced mathematics is used in the real world to solve complex problems. The students will work on problems which begin with a real-life problem generated by our industrial sponsors. They will work closely with a company representative to define the problem and develop solutions of immediate value to the company. They will be guided by a faculty advisor to maintain a clear focus on the mathematical issues at the core of the project. Funding for exceptional international students comes from industrial partners.