Question: Which American privately held corporation specializing in mathematical computing software supports a Professor of Mathematics at Massachusetts Institute of Technology?

Context articles: Cargill
Transbotics Corporation
Bose Corporation
Grid MP
MathWorks
Gilbert Strang
Said Hadjerrouit
Mortgage Electronic Registration Systems
Definitive Technology
Techila Grid

Cargill, Inc. is an American privately held global corporation based in Minnetonka, Minnesota, a Minneapolis suburb, but incorporated in Wilmington, Delaware.
 Founded in 1865, it is now the largest privately held corporation in the United States in terms of revenue.
 If it were a public company, it would rank, as of 2015, number 15 on the Fortune 500, behind McKesson and ahead of AT&T.
Transbotics Corporation is a privately held corporation specializing in automated guided vehicle system (AGV) design and system implementation.
 Transbotics Corporation is a prominent North American automation solutions integrator and manufacturer that specializes in the design, development, support and installation of automated guided vehicle system solutions.
 Transbotics’ comprehensive product and service offerings include automated guided vehicles, automated guided carts,conveyors, automatic truck loading systems, integration software, engineering services, training & maintenance, motors, scanners, encoders, battery solutions as well as spare parts and a 24-hour emergency support line.
Bose Corporation is an American privately held corporation, based in Framingham, Massachusetts, that designs, develops and sells audio equipment.
 Founded in 1964 by Amar Bose, the company sells its products throughout the world.
 Forbes estimates that in the 2015 financial year, Bose received revenue of US$3.5 billion and employed approximately 11,700 people.
Grid MP is a commercial distributed computing software package developed and sold by Univa (formerly known as United Devices), a privately held company based primarily in Austin, Texas.
 It was formerly known as the MetaProcessor prior to the release of version 4.0, however the letters "MP" in "Grid MP" do not officially stand for anything.
The MathWorks, Inc. (branded as simply MathWorks) is an American privately held corporation that specializes in mathematical computing software.
 Its major products include MATLAB and Simulink, which support data analysis and simulation.
 As of June 2016, it employed over 3,600 people worldwide with 70% located at the company's headquarters in Natick, Massachusetts, United States.
William Gilbert Strang (born November 27, 1934), usually known as simply Gilbert Strang or Gil Strang, is an American mathematician, with contributions to finite element theory, the calculus of variations, wavelet analysis and linear algebra.
 He has made many contributions to mathematics education, including publishing seven mathematics textbooks and one monograph.
 Strang is the MathWorks Professor of Mathematics at the Massachusetts Institute of Technology.
 He teaches Introduction to Linear Algebra and Computational Science and Engineering and his lectures are freely available through MIT OpenCourseWare.
Said Hadjerrouit is a professor of informatics and computer science at the University of Agder in Kristiansand, Norway.
 He got a doctoral degree (Dr.Ing) in 1992 in the field of medical expert systems and artificial intelligence, and a master's degree (1985) in software engineering from the Technische Universität Berlin, Germany.
 His teaching in Berlin focused mostly on informatics and society, philosophical and ethical issues of computing, and computers in developing countries.
 In 1991, he moved from Berlin to Kristiansand, Norway, and worked at the Institute of Electronic Data processing at the University of Agder.
 In 1994, he moved to the Institute of Mathematical Sciences at the same university, where he was appointed as an associate professor for teaching object-oriented programming, Web engineering, software development, and databases.
 From 2004, his work shifted to didactics of informatics and computer science education, ICT in mathematics education, ICT-enhanced learning, Web-based learning resources, social software, and Web 2.0 technology.
 In 2008, Hadjerrouit made a major shift in his research focus from didactics of informatics to mathematics education and use of digital tools in teaching and learning mathematics.
 He has been teaching the doctoral course “Theories in the Learning and Teaching of Mathematics” since 2014.
 He is also supervising two PhD students in the field of Flipped Classroom and documentational approach to mathematics education.
 Hadjerrouit has more than 140 publications in international journals and conference proceedings.
 He was awarded for Best Paper at Society for Information Technology and Teacher Education Conference (SITE 2010) in San Diego, California, United States, and IADIS e-Society conference 2012 in Berlin, Germany.
Mortgage Electronic Registration Systems, Inc. (MERS) is an American privately held corporation.
 MERS is a separate and distinct corporation that serves as a nominee on mortgages after the turn of the century and is owned by holding company MERSCORP Holdings, Inc., which owns and operates an electronic registry known as the "MERS system", which is designed to track servicing rights and ownership of mortgages in the United States.
Definitive Technology (sometimes referred to as Def Tech) is an American privately held corporation, based in Vista, California, that designs, develops and sells home theater audio systems, soundbars and headphones.
 They are part of the Sound United division of electronics company DEI Holdings.
Techila Distributed Computing Engine (earlier known as Techila Grid) is a commercial grid computing software product.
 It speeds up simulation, analysis and other computational applications by enabling scalability across the IT resources in user's on-premises data center and in the user's own cloud account.
 Techila Distributed Computing Engine is developed and licensed by Techila Technologies Ltd, a privately held company headquartered in Tampere, Finland.
 The product is also available as an on-demand solution in Google Cloud Launcher, the online marketplace created and operated by Google.
 According to IDC, the solution enables organizations to create HPC infrastructure without the major capital investments and operating expenses required by new HPC hardware.