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About US

Dennis M. Crowley, III, Esq.

Dennis Crowley is an accomplished Senior Executive and Entrepreneur with more than 25 years of experience across the technology, services, and security industries. Leveraging extensive hands-on expertise building and managing businesses from the ground up, he is interested in both startups and growth-stage organizations looking to develop service offerings and launch new products to drive long-term, sustainable growth. Dennis is particularly skilled in scaling business operations, developing client relations, strategic planning, sales and marketing, human resources, quality control, security operations, and corporate law.

 Dennis is a Founder of Apollo Security International and has served in numerous positions throughout his tenure, including General Counsel and President. After negotiating a successful sale to Allied Universal, he is currently Senior Vice President of the Integration Technology Group at the multi-billion-dollar global business. Dennis was responsible for overseeing the growth of Apollo from a small family business to a major player in the security industry, quadrupling revenue to $90M prior to its sale. He spearheaded the expansion of Apollo’s operations into the Midwest, Rocky Mountains, and Texas. This positioned the company for acquisition by Allied Universal, the largest security force in America with over 140,000 employees. As a Senior Vice President at Allied Universal, he is responsible for leading the effort to create new product offerings for the company to launch state-of-the-art technologies including robots, AI, and situational intelligence/threat awareness tools in conjunction with existing technology to reimagine manned security guard services.

 Dennis holds a Bachelor’s Degree from the University of Massachusetts- Amherst, a CSS in Business Administration from Harvard University Extension School, and a JD, cum laude, from Suffolk University Law School. He is a member of YPO, the Massachusetts Bar, the American Society of Industrial Security, and BOMA International.

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Dennis Crowley

Managing Member


Investment Criteria

Belenus Holdings focuses on investment opportunities in emerging AI and technology products or services.  We are looking for companies that have an established proof of concept and are poised for growth; successful and motivated management teams capable of delivering profit growth; and businesses with positive trends and sustainable competitive advantages in their markets.