Contact Information
235 High Street, Waltham 2453, Massachusetts
Detailed Information

Boston Underground Strength Training is a fitness facility in Waltham, MA, founded by Coach Angel Jimenez, a Certified Strength & Conditioning Specialist with a background in the United States Marine Corps. The gym offers individualized and group-based strength training programs for up to 6 and 9 people, respectively. The focus is on helping clients reach their full potential in a comfortable environment that caters to their lifestyle, with a no-nonsense approach to strength training.

Coach Angel Jimenez’s passion for strength and conditioning led him to open Boston Underground Strength Training in 2014, providing a simple yet effective training approach for both adults and athletes. With a Bachelor’s Degree in Exercise Science and certifications in strength training and nutrition coaching, Angel brings a wealth of knowledge and experience to the gym. The facility is equipped with essential training tools, and the highly motivated coaches, including Angela, a Certified Personal Trainer, ensure clients receive personalized guidance and support to achieve their fitness goals.

At Boston Underground Strength Training, clients can expect to be guided, challenged, and equipped with the skills needed for long-term success. The gym caters to a diverse clientele, including high school and collegiate athletes, as well as general fitness enthusiasts. With a strong emphasis on individualized programming and a commitment to helping each client thrive, Boston Underground Strength Training stands out as a premier destination for those seeking a results-driven and supportive fitness experience.