Executive Team

Glenn Seth

RKC, WKC, LMT: co-founder, Master Trainer

Glenn has been training with kettlebells for more than fifteen years after serving as a US Marine, and has certifications from World Kettlebell Club (WKC), Russian Kettlebell Challenge (RKC) and ACE. He has trained with world-class athletes Valery Fedorenko and Catherine Imes. Glenn's unique teaching approach to kettlebell training focuses on flow which, along with fitness and function, give F3 its name. At F3 Wellness Connections, rated best kettlebell workout by the Washington Post, Glenn and his team offer a progression program for new clients to advance their kettlebell practice through four stages, called the Path of the Warrior. For advanced students and local trainers, Glenn offers DC's only kettlebell certification program, The VonSeth Method. He is also a licensed massage therapist with over fifteen years of hands-on training and experience in top spas in and around DC.


Sarah Seth

MBA, HKC: co-founder, managing partner

Sarah was born in Paris but grew up in Cote D’Ivoire (her country of origin) and France until moving to the USA in 2008 to continue her studies. She became a strong advocate for fitness and wellness after she decided to adopt a healthier lifestyle six years ago, which resulted in a significant weight loss and drastic improvement in her health and wellbeing. Sarah was introduced to kettlebell training and the health and wellness industry by her husband Glenn in 2013 and it automatically turned into her passion. Having witnessed the life-changing effects of kettlebell training, she was inspired to use her business management background to assist her husband in growing their family business and sharing the tremendous mental and physical benefits of fitness training and massage therapy with their community. Sarah holds a bachelor’s degree in Business Administration from Temple University and a Master of Business Administration from University of Maryland University College. She is also a Hardstyle Kettlebell Certified (HKC) Instructor. She loves traveling and discovering new cultures with her family and is dedicated to raising a healthy, happy daughter.


Kettlebell Training


Danny Lamas

B.A, HKC: Head Trainer

Danny is a certified F3 coach and Hardstyle Kettlebell Instructor. He has trained under Master Trainer Glenn Seth since 2011. He has a B.A. from George Washington University in Political Science. He was inspired to take up kettlebells as an enthusiast of author Tim Ferriss' books on entrepreneurship, learning, and fitness. The efficiency of full-body kettlebell workouts in improving functional strength and producing rapid fat loss inspired him to become a regular at F3 for more than two years before becoming an instructor. Danny enjoys presenting clients with new and exciting challenge through consistently varied workouts.


Corey Burks


Corey Burks is a Professional Health and Fitness Coach. He has 13 years of experience in the health, fitness and performance industry. Corey has coached over 350 people in this time. He has also coached personal trainers on how to get better results with their clients. Additionally, continuing education is a core value. As a coach, he integrates and implement recent, scientifically sound information into his practice. He looks forward to helping his clients on their journeys to better health, wellbeing and vitality.

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Michael Carbajal


Michael Carbajal comes to F3 with over fifteen years of experience in the fitness industry. He received his Associate's degree in Exercise Science from Montgomery College before graduating with a Bachelor's of Science degree in Kinesiology from the University of Maryland, College Park. Shaping bodies of all ages, sizes, and fitness levels, Mike does his best work during personal training sessions. He believes in a person’s ability to reach his/her goals and makes every effort to help them get there, while still keeping it fresh and creative. Also a group fitness instructor at various locations in the DMV area, Mike comes in ready to challenge the group. That drive is balanced by his upbeat and humorous teaching style, making sure  everyone gets a laugh in between sets. You know what they say, laughing while working out burns more calories!


Josh Sullivan


Josh is a navy wartime veteran who dreams and lives all things fitness. After an injury, I re-fell in love with fitness during the rehabilitation process and I haven’t looked back since. His coaching style is strict, but he is all about working together towards the common goal... Helping is clients become the best version of themselves. He trains a range of people - athletes, celebrities, working parents, 9-5ers - with the mindset that each person deserves a program to match their specific lifestyle and their goals. Josh believes in setting an example of health for your family, and that’s what he practices in his own life. He has two beautiful children and understand the life constraints of ‘balancing it all.




Alejandra Quinonez


With 10 years of practice and 7 years of teaching experience, Alejandra was trained in traditional Hatha Yoga in Goa, India and has been recognized at the Ayurvedic Expert of DC for 2019. Along with stretching and strengthening, her yoga classes focus on the benefits of yoga on the central nervous system and the endocrine systems. In addition, she offers nutrition coaching, life coaching, along with movement and philosophy workshops.


Emily Szajda


Emily Szajda, writer, chef, yoga and meditation instructor and sports nutritionist left “Corporate America” for an entrepreneurial life focused on finding more work/life balance in Europe. Emily began her journey into self-awareness and spirituality merely by the physical practice of yoga, but overtime her practice evolved into much more. After graduating from ASU with a Bachelor’s degree in History and Geography in 2010, in addition to having degrees in culinary arts and hospitality management, Emily felt driven to share the beauty of yoga and meditation with others. Inspired by one of her early instructors, Vivienne Sio Tarquinio, she completed her 200-hour RYT in June 2011 in Scottsdale, Arizona at At One Yoga sponsored by Life Power studying under renowned yoga instructors, Jenn Chiarelli and John Salisbury. She also earned her 85-hour PRYT in Italy in 2017.


Catelynn Brown


Catelynn believes in the mind, body, soul connection incorporating healing both mentally and physically into her practice. She trained at Easy Day Yoga in Ashburn receiving her 200hr YTT. As an teacher of all ages of dance for 10 years prior to yoga, she has found a way of coming up with creative flows that connect each student with their body and allows them to sink into a meditative state, exploring their inner being through movement therapy. She also works as a self-help coach and spiritual healer. Her goal as a healer and consciousness advocate is to show people that by following their life purpose and wellness lifestyle, they can become their truest and ultimate selves.

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Catelynn Brown


Stuart was born with congenital scoliosis which progressed as he aged and forced him into a wheelchair by age 11. He was determined to walk again and turned to alternative medicine in order to help him find his way to his feet again. It was then that he really understood the importance and healing power of movement and fitness. Stuart began practicing yoga while he was completing his undergraduate degree in Psychology at Rollins College. He continued his practice of Ashtanga yoga through his studies and went on to complete his Master of Science degree in Instructional Design and Technology at Full Sail University. Stuart then spent time at the Sivananda ashram in Nassau, Bahamas and attained his certification to teach yoga. Stuart moved to Washington, DC in 2016. His teaching style is centered around building awareness of the mind, body, and breath. He uses his educational background to create classes that allow his students to tap into their practice on a deeper level and understand where there is potential for growth. 




Brigette’ M MUIR


Graduated from the Potomac Massage Training Institute, February 2010 . Specialty: Modalities Deep tissue, Sports, Swedish, Warm Stone, Prenatal and certified in Reiki 1 and 2 Her goal is to help clients achieve maximum mobility and relaxation. Educating clients about the benefits of massage and making it clear that massage is a Mind Body Spirit connection. Providing a feeling of wellbeing while helping to reduce heart rates and increase quality sleep. 

Working in the District of Columbia enables her to provide exceptional professional massage services to clients who were in physical therapy, massage clinics and Office spaces such as Google, also highly requested at the Four Seasons Hotel in Georgetown. 

With 10 years of experience, she plans to continue to excel at her profession and to provide her clients with the services that is expected of a professional. 


Tim Deller


Tim has been helping people feel better with a combination of massage styles for over 8 years. His specialty is reducing muscle tension in the neck and shoulders with deep tissue massage, great for people who work at a computer all day and experience a sore neck and shoulders which can lead to tension headaches. He is very experienced with sports massage and helps athletes decrease muscle tension and increase range of motion. As well as the more aggressive massage styles, he is very experienced with the more gentle and soothing touch that is common for Swedish massage, prenatal massage and clients with fibromyalgia.

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Regina McLinden


Regina is a dedicated, empathetic, and intuitive massage therapist . She cares about a client experience that feels effortless, hygienic, safe, and relaxing. She believes that massage helps its recipients to feel better integrated into their own bodies and thus more in touch with how to best care for their physical and mental wellbeing. She has travelled the world training in different massage modalities and exploring luxury spa services, then drawing on her favorite elements from each; thus, her practice is uniquely artistic with great depth of work.


Robin Younginer


Robin is an intuitive therapeutic certified massage therapist Licensed in Washington, DC. She graduated from PMTI in 2004. She is certified in Hot Stone Therapy and has completed courses in Cranio Sacral and Trigger modalities. She also completed the Compassionate Clinical Service: Oncology / Hospital Massage Intensive course.


Bryan Harris


Bryan has been a therapist since 2015. His favorite modality is Swedish Massage. Sometimes the basics are more than enough. What got him passionate about massage was seeing so many people not live up to their full potential and do everything they were created to because their bodies aren’t being taken care of and Bryan helping them do that in turn helps the world to be a better place!


Private Chef Services

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Made Master

Chef Made Master is a renowned sushi chef known for creating stunningly beautiful and flavorful plates of sushi. He has gained experience in a number of sushi restaurants across the country, beginning as a sushi helper and working his way up to his currently coveted role of head sushi chef. His calming, yet energetic demeanor makes him an outstanding host to a number of memorable cooking classes and culinary experiences.


Esthetician Services


Anna Hall

Master Esthetician

Anna Hall is a native of the beautiful country of Armenia. she obtained her certification as Master Esthetician, specializing with advance clinical skincare, chemical peels, microdermabrasion and lymphatic drainage from the Esthetic Institute of Virginia. She takes the time to analyze each individual of their skin textures and skin care concerns. Then she customizes a treatment plan that will help best each client. To achieve this, Anna utilizes and combines only the best natural and organic products of various brands that provide actual results. She does not rely on a brand’s entire product line, rather she researches, identifies and utilizes only the products that have proven successful. She also specializes with various skin care technologies including European-sourced microcurrent, radio frequency, and electric muscle stimulator (EMS) machines. Anna focuses on each client’s specific needs, combining both technological skin care treatments and the best products available. Under Anna’s care, customers discover effective preventative, anti-aging and nourishing skin care.




Nikky Hindle


Nikky is a graduate of the Pennsylvania State University, where she earned a Bachelor of Science degree in Nutrition with a minor in Kinesiology. She subsequently completed her dietetic internship through Cedar Crest College, where her work experience included rotations at Penn State Sports Nutrition, UPMC Altoona, and Penn State Cooperative Extension. Nikky is both a Registered Dietitian (RD) and a Certified Personal Trainer (CPT) certified by the National Council on Strength and Fitness (NCSF). Additionally, Nikky is a member of the National Physique Committee (NPC), the Academy of Nutrition and Dietetics (AND), and the Sports, Cardiovascular, and Wellness Nutrition (SCAN) dietetic practice group. Nikky specializes in nutrition counseling in several areas, including sports nutrition for amateur, high school, and collegiate athletes; medical nutrition therapy for diabetes, obesity, hypertension, and eating disorders; and general healthy nutrition for individuals looking to gain muscle, lose fat, or attain optimal health and vitality.