Glenn Grossman has provided consistently excellent IT support to our law firm since 2016. Glenn always makes himself available and can fix most issues remotely. I highly recommend Marathon Computer Services and Glenn Grossman for anyone needing IT assistance. He is a lifesaver!  

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I have been using GLENN GROSSMAN for many years. He is very trustworthy, there has never been an issue with my computer that he wasn’t able to repair after all these years he is not only my technical support guy but he also became a great friend. 

​Big thanks to Glenn and his team for their unwavering support and expertise. Marathon Computer Services has been managing our company's IT for over 10 years, consistently delivering prompt, professional, and reliable service—critical qualities in the IT industry. Glenn has become an invaluable partner to our team, ensuring smooth operations and peace of mind. Highly recommended for any business seeking top-tier IT management