Donn Rubin

Purina Mills LLC produces and markets animal nutrition products. It manufactures and supplies livestock feed and pet food offering information concerning their products. The firm provides its products for commercial livestock and poultry, horse, bird, fish, zoo and pet industries. The company was founded on October 11, 2001 and is headquartered in Clayton, MO.

Ernst & Young LLP engages in the provision of accounting, assurance, tax, transaction, and advisory services. It specializes in the actuarial, analytics and big data, cyber security, accounting compliance and reporting, center for board matters, international financial reporting standards, country tax advisory, global trade, tax accounting, and climate change and sustainability. The company was founded in 1989 and is headquartered in New York, NY.

Prosper Capital LLC /Missouri/ (Prosper Capital) is a venture capital subsidiary of Prosper Women Entrepreneurs founded in 2014 by Jennifer Ehlen. The firm is headquartered in St. Louis, Missouri.

Innovate St. Louis operates an association that works in partnership with individuals, corporations, government, and universities to increase the success of entrepreneurs and creative innovation. The private company is based in St. Louis, MO and has subsidiaries in the United States.

St. Louis Arch Angels provides seed and early stage capital to the startup organizations. Its members mentor and coach, serve on boards, provide contacts, assist with team building, strategic planning and fundraising. The company was founded by Gilbert Bickel in January 2005 and is headquartered in Saint Louis, MO.

Nidus Investment Partners LP (Nidus Investment Partners) a venture capital firm founded in 2010 by Vicki A. Gonzalez, Duke Leahey and Mich B. Hein. The firm is headquartered in St. Louis, Missouri.

Electrochaea LLC develops technology for converting electricity and carbon dioxide into methane. Its technology enables to store renewable energy from wind and solar and represents a viable solution for utility-scale energy storage, grid balancing and carbon recycling. The company was founded in 2009 and is headquartered in St. Louis, MO.

Denim Software, Inc. engages in the provision of technology services. The company is headquartered in Saint Louis, MO.

Part of Berkshire Hathaway, Inc., AI Software LLC (Missouri) is a private company that builds landing pages for social media campaigns to track conversions from social publishing and advertising efforts. The company, based in St. Louis, MO, is a social media management company that provides publishing, advertising, and compliance for financial services companies. The company offers social media marketing for insurance companies with scheduling content curation, advertising, and built-in social media compliance. The company was founded in 2011 by Bryan Bell and Gregory Bailey, and the CEO is Douglas Wilber. AI Software LLC (Missouri was acquired by Ai Software LLC on August 30, 2023.

Prosper Women Entrepreneurs operates as an advocacy company for the woman entrepreneurs. It is comprised of two separate divisions: Prosper Institute, a non-profit organization that helps growth-seeking women entrepreneurs advance their businesses to create economic prosperity, and the Prosper Women Entrepreneurs Startup Accelerator, a for-profit organization focused on increasing women entrepreneurs' access to growth capital and the number of women investing in early stage capital markets. The company was founded by Mary Jo Gorman, Maxine Clark, Peter Finley, Carol Matthews, Hal Gentry, and Jennifer Ehlen in 2012 and is headquartered in St. Louis, MO.

Part of Constellation Software, Inc., Innovate Software Solutions, Inc. is a company that develops decision support software. The company is based in St. Louis, MO. Innovate Software Solutions was acquired by Medicus Systems Corp. on May 19, 1992 for $3 million.

The American Academy of Actuaries provides leadership, objective expertise, and actuarial advice on risk and financial security issues to assist public policymakers on all levels. The private company is based in Washington and has subsidiaries in the United States. The academy also sets qualification, practice, and professionalism standards for actuaries credentialed by one or more of the five U.S.-based actuarial organizations.

The National Science Foundation supports fundamental science and engineering researches. It offers services to people in all scientific and engineering disciplines. The firm focuses on the promotion and progress of science to advance the national health, prosperity and welfare. The company was founded in 1950 and is headquartered in Arlington, VA.

BioGenerator (Venture Capital) (BioGenerator) is a venture capital subsidiary of BioGenerator founded in 2003. The firm is headquartered in St. Louis, Missouri.

The Academy of Science of St. Louis operates as an independent science organization. It facilitates interactions between providers of educational programming and community organizations by providing a website and information listing educational programs, resources, and learning opportunities in subjects relating to science, applied science, mathematics, and engineering. The company was founded by George Engelmann and James B. Eads in 1856 and is headquartered in St. Louis, MO.

The American Ceramic Society is the professional membership organization for international ceramics and materials scientists, engineers, researchers, manufacturers, plant personnel, educators and students. ACerS also maintain an extensive materials science website that provides online access to its journals, publications, science and career forums and specialized technical knowledge centers. The organization was founded in 1898 and is headquartered in Wasterville, OH.

ITC Federal is a technology service provider that supports the federal government in delivering on their mission-critical requirements. ITC Federal is headquartered in an undisclosed location. The American company was founded in 2006 by Thomas Davis, and the CEO is Greg Fitzgerald.

Memphis Networx LLC owns and operates fiber optic telecommunications network. Its services include transport, metro Ethernet, collocation, and Internet & security services. Its customers include carriers, service providers, and building owners. The company was founded in 1999 and is headquartered in Memphis, TN.