Andy Pyle

Andy is a founding member of SevenGen and oversees the company’s operational functions. He provides strategic, organizational, and administrative leadership, ensuring that SevenGen’s goals, objectives, and mission are reflected in daily operations and customer interactions. His ability to maintain structure and develop effective policies helps drive the company's continued success.

With more than 20 years of risk management experience, Andy has worked across the automotive, healthcare, metal plating, food, distribution, and industrial construction industries. He is a trusted resource for many of SevenGen’s strategic accounts and collaborates closely with the company’s technical directors to develop long-term operational strategies that enhance efficiency and add value for both team members and client partners.

Outside of work, Andy enjoys spending time with his family. He has a passion for the outdoors, traveling, fine arts, and watching his sons compete in sports.

Connect with Andy on LinkedIn here!

Kevin Roegner, CIH, MPH

Kevin is a founding member of SevenGen and is responsible for managing the company’s operations across the United States. As a strategic thought leader, he provides guidance across the business, inspiring teams to help clients achieve their HSE goals while ensuring the highest level of service.

Kevin began his consulting career in 2001 with ISG, Inc., and later served as Assistant Vice President of the EHS Consulting Division at Concentra EHS. He also supported EH&S programs in the petrochemical industry and worked for the National Institute for Occupational Safety and Health (NIOSH), a division of the Centers for Disease Control and Prevention, where he conducted health hazard evaluations on emerging occupational health issues.

You can find Kevin’s publications for NIOSH on the CDC’s National Institute for Occupational Safety and Health (NIOSH) website. Follow the link and search for “Roegner” to view an HHE Report.

View Kevin’s LinkedIn page here.

Melissa Rupert, MS, CIH

Melissa is a founding member of SevenGen and leads the company’s talent optimization and recruitment efforts. She leverages an extensive network to attract top industry talent while creating career pathways that align with the professional goals and interests of SevenGen’s team. Through ongoing learning and growth opportunities, she helps promote the company’s values and culture.

With more than 20 years of technical HSE experience and a passion for mentorship, Melissa has made a lasting impact in the industry. She founded the American Industrial Hygiene Association (AIHA) National Mentorship Program, which connects aspiring professionals with mentors in the Industrial Hygiene community.

Outside of work, Melissa enjoys spending time with her husband and two children. She has a passion for travel, home improvement projects, and photography. In recent years, she has taken up gardening and nurtured a (mostly) successful garden. She is also a dedicated volunteer for several nonprofits, including Pink Ribbon Girls, the Leukemia and Lymphoma Society, and the American Industrial Hygiene Association.

Connect with Melissa on LinkedIn here!

TJ Unger

TJ is a founding member of SevenGen and leads the company’s business development initiatives. He oversees national sales, strategic account management, marketing, and branding strategy, driving growth and impact. Collaborating with business and industry leaders across the U.S., TJ develops innovative and sustainable solutions for a wide range of environmental challenges. His people-first approach helps promote a collaborative and supportive team while shaping SevenGen’s positive brand reputation and culture.

With a deep technical background and a value-driven leadership style, TJ plays a key role in SevenGen’s vision and long-term growth. He takes pride in working alongside a team of high-performing difference-makers, expanding the company’s mission of meaningful impact in the communities it serves.

Outside of work, TJ enjoys traveling with his wife, Liz, exploring the outdoors, and experiencing music, history, and the arts. His lifelong passions for the natural world, art, and business fuel his creativity and pursuit of new ideas and goals.

Connect with TJ on LinkedIn here!

Amanda Calloway, MS

Amanda is SevenGen’s Territory Sales Executive, responsible for promoting SevenGen’s expert services to clients in Indiana, Ohio, Michigan, and Illinois. In addition to driving business growth, she contributes to SevenGen’s strong culture of positivity and goodwill within the communities the company serves.

Amanda brings a well-rounded educational and professional background to her role. She earned her undergraduate degree from Indiana University and a master’s degree from Purdue University. Before joining SevenGen, she worked in business development for a regional leader in occupational healthcare. Her experience in employer solutions and occupational health programs provides her with a unique perspective on the drivers of SevenGen’s preventative HSE services, including industrial hygiene and occupational safety.

Outside of work, Amanda enjoys spending time with her fiancé, Kyle, and their dog, Cooper. She has a passion for fitness, crafting, and spending time outdoors—whether at the lake, the beach, or hiking.

Connect with Amanda on LinkedIn here!

Jared Campos, MS

Jared is an HSE Consultant with SevenGen. He evaluates work environments for risk, helping to mitigate unforeseen accidents and works with customers to maintain committed partnerships.

Jared spent over 14 years in the U.S. Navy as a Seabee, including seven deployments and assignment in several host nation countries. During his military career, he held various roles, including welder, lead estimator, project supervisor, and safety supervisor, where he gained valuable experience in building schools, medical clinics, and storage warehouses. Jared is pursuing his master’s degree in organizational leadership at the University of Saint Francis to complement his bachelor’s in organizational management from the University of La Verne.

At SevenGen, Jared utilizes his unique skills and experiences to deliver site-specific solutions that ensure the safety and well-being of customers’ employees. In his free time, he enjoys biking—whether on or off-road—and spending quality time with his family. An avid outdoorsman and travel enthusiast, Jared has visited three continents, four oceans, 14 countries, and 46 out of the 50 states.

View Jared's LinkedIn page here.

Bill Combs

Bill is a Senior HSE Consultant at SevenGen, bringing extensive experience from a diverse range of industries, including defense contracting, automotive parts manufacturing, and orthopedics. He provides staff augmentation solutions through on-site consulting services, conducting industrial hygiene, safety, and environmental field studies across multiple sectors, further supporting SevenGen’s mission.

Bill earned his bachelor's degree in environmental science with a minor in Chemistry from the University of Saint Francis. As a student, he interned in the EHS Department at ITT Aerospace in Fort Wayne, and was hired after graduation to oversee EHS operations at ITT’s Total Army Communications (TAC) Lab in Fort Wayne.

In 2000, Bill transitioned to environmental consulting, joining SevenGen (then Industrial Solutions Group), where he worked as a contractor for several clients. He has led projects in industrial hygiene, environmental consulting, and safety across many industries.

View Bill's LinkedIn page here

Clay Dimmit, MS, CSP

Clay is an HSE Consultant with SevenGen’s Safety Team. He served for six years as a Combat Medic with the United States Army, including one deployment as part of Operation Iraqi Freedom. His military experience transitioned into a career as a Safety Coordinator within a regional hospital network, where he focused on the health, safety, and well-being of co-workers, contractors, and communities.

As an HSE Consultant, Clay leverages his diverse background to provide high-level technical safety support to SevenGen’s clients with a compassionate and trustworthy approach. He is dedicated to continuous professional development, having earned multiple certifications and a Master of Business Administration. Clay’s commitment to safety and people’s well-being aligns with SevenGen’s mission to protect people, the environment, and the communities we serve.

Outside of work, Clay and his family enjoy the outdoors—whether it’s exploring the mountains, canoeing in the Boundary Waters of Minnesota, camping locally, or relaxing at the lake. Clay also enjoys home improvement projects, enhancing his yard and flower beds, and tackling random woodworking projects.

View Clay's LinkedIn page here

Sydney Hess, MPH

HSE Consultant

Sydney is an HSE Consultant at SevenGen, serving as part of the Industrial Hygiene team. She works with clients across various industries, applying her expertise in occupational health and risk-based research to promote safe and healthy work environments.

A graduate of the University of Cincinnati’s College of Medicine with a Master of Public Health, Sydney takes a research-driven approach to workplace health and safety. Her passion for fostering meaningful connections and collaborating on innovative solutions drew her to SevenGen. She aspires to make a lasting impact on the environments and workplaces she serves while working toward her Certified Industrial Hygienist (CIH) certification.

In her free time, Sydney enjoys reading, gardening, and tackling DIY home projects. Her ideal day would include a good book in one hand, a cup of coffee in the other, and her two cats by her side.

Connect with Sydney on LinkedIn here.

Alistair Lovekin

Alistair is an Account Executive in SevenGen’s Cincinatti office. He serves clients in Indiana, Kentucky, Ohio, and beyond, working with the SevenGen team to deliver comprehensive solutions to those we serve. 

Alistar is a graduate of the University of Cincinnati. His previous career experience includes positions in the chemical coatings and automotive industries, where he honed his ability to navigate complex challenges and generate outstanding results. Alistair's experience in manufacturing and the automotive industry gives him a thorough understanding of preventive HSE services.

In his off hours Alistair enjoys spending time outside, working out, golfing, fishing, hiking, and traveling. 

Connect with Alistair on LinkedIn here.

Zach Pasquinelli, CIH

Zach is SevenGen’s Director of Industrial Hygiene, providing expert guidance and innovative solutions to ensure workplace health and safety for our clients.

Zach began his career at SevenGen as an industrial hygienist, conducting exposure studies and risk evaluations across various industries. He is board certified in Industrial Hygiene and has become a trusted leader, driving the company’s growth while managing one of the nation’s top industrial hygiene teams. Zach’s technical expertise, collaborative approach, and commitment to service excellence make him an invaluable asset to both SevenGen and the communities it serves.

Outside of work, Zach enjoys spending time with his family, traveling, cooking, camping, and playing sports. As a proud Purdue Boilermaker, he frequently returns to campus for sporting events, lectures, and reconnecting with friends.

Connect with Zach on LinkedIn here!

Taylor Schenk, ASP

Taylor is an HSE Consultant at SevenGen. His past work includes eight years in healthcare, managing hospital safety programs with a focus on accident investigation, hazardous waste compliance, and safety training. He works closely with clients to assess risk and implement effective strategies that address their highest-priority concerns, supporting many of SevenGen’s longest-standing client partnerships.

Taylor’s experience in healthcare safety equips him with a deep understanding of risk assessment and solutions to support client needs. A trusted resource for both clients and colleagues, he is dedicated to delivering meaningful, high-impact results. Taylor is also a graduate of Purdue University, where he earned a master's degree in organizational leadership. His curiosity and commitment to professional growth drive his pursuit of excellence, both in his career and personal development.

Outside of work, Taylor enjoys spending time with family and friends. In his downtime he also takes weekend trips with his significant other to discover new destinations and unwinds at the gym.

Connect with Taylor on LinkedIn here!

Tolu Solomon, MPH

Tolu is an HSE Consultant on SevenGen’s Industrial Hygiene team, where he applies his expertise in public health to help create safer workplaces. He specializes in industrial hygiene risk assessments, complex exposure monitoring surveys, and the development of meaningful mitigation strategies for SevenGen’s top client partners. His dedication and contributions play a key role in the team’s success.

Tolu holds a Master of Public Health degree and is deeply committed to improving workers’ health and safety. His work allows him to make a tangible difference in the lives of employees across various industries, a responsibility he finds both fulfilling and impactful.

Outside of work, Tolu enjoys reading and continuously learning about the world around him.

Connect with Tolu on LinkedIn here!

Emily Smith, CIH

Emily is a Certified Industrial Hygienist, specializing in identifying, monitoring, and mitigating workplace hazards across a variety of industries. She takes pride in delivering accurate assessments and providing clients with practical recommendations to reduce airborne hazards and promote safer work environments.

With a deep commitment to employee health and safety, Emily values the opportunity to collaborate with some of the industry’s best companies and professionals. Her dedication ensures that workers can perform their jobs in a healthy environment and return home safely to their families each day.

Outside of work, Emily enjoys spending time with family, friends, and her dogs. She has a passion for travel and experiencing new cultures, always seeking opportunities for personal and professional growth with each adventure.

View Emily's LinkedIn page here.

Kaitelyn Vachon

Kaitelyn is a member of SevenGen’s Environmental Department, where she applies her expertise across a wide range of environmental services. Her role spans fieldwork—including sample collection for asbestos, stormwater, and wastewater—as well as the development of key regulatory documents such as permit applications, Stormwater Pollution Prevention Plans (SWPPP), and Spill Prevention, Control, and Countermeasure (SPCC) Plans. She takes great pride in equipping clients with the tools they need to achieve environmental compliance and success.

Kaitelyn earned her undergraduate degree from the University of Saint Francis. Her career began in hazardous waste management and environmental laboratory analysis, then she obtained certifications as an Indiana State Lead Inspector/Risk Assessor and Asbestos Inspector. Her diverse background allows her to navigate complex environmental challenges effectively.

Outside of work, Kaitelyn enjoys exploring state and national parks, where she pursues her passion for protected lands and ornithology—a love fostered during her time at USF. If you spot her on the trails, be sure to say hello!

View Kaitelyn's LinkedIn page here

Caitlin Weible, MS

HSE Consultant

Caitlin is an HSE Consultant on SevenGen’s Industrial Hygiene Team, where she leverages her expertise to help clients identify, evaluate, and mitigate workplace hazards. Her experience includes work at the Research Laboratory at Wright-Patterson Air Force Base, as well as in industrial hygiene as an EHS specialist in the inorganic pigment manufacturing industry. Her scientific knowledge and analytical skills enable her to assess risks, clearly communicate findings, and recommend effective control strategies tailored to each client’s needs.

Caitlin is passionate about expanding her industry knowledge, staying current with the latest EHS trends, and pursuing relevant certifications to enhance the quality of her work. As a trusted advisor to many of SevenGen’s strategic partners, she is committed to delivering high-quality, customized solutions that promote safer workplaces.

Outside of work, Caitlin enjoys exploring new cuisine, watching documentaries, and traveling with family and friends. A dedicated baseball fan, she makes a point to catch a St. Louis Cardinals game at least once a year.

Connect with Caitlin on LinkedIn here.

Ben Williams, PhD, MSPH

Ben is an HSE Consultant on SevenGen’s Industrial Hygiene team, where he applies his expertise to support clients across various industries. With a strong technical background, he is committed to promoting worker well-being and delivering practical solutions tailored to client needs.

Ben earned his PhD in Chemistry from Bryn Mawr College and an MSPH in Environmental and Occupational Hygiene from Johns Hopkins University. His diverse experience in chemical research, industrial hygiene, and safety allows him to approach complex workplace challenges with a comprehensive and analytical perspective. Known for his enthusiasm and customer-focused approach, Ben values the opportunity to help clients create safer work environments.

Outside of work, Ben enjoys experimenting with new recipes in the kitchen, reading, connecting with family and friends, and spending time outdoors—especially on the golf course.

Connect with Ben on LinkedIn here!

Kate Yentes, CHMM

Kate is SevenGen’s Director of Environmental Services, focusing on sustainability and compliance. With experience at the National Oceanic and Atmospheric Administration (NOAA) and as an Environmental Compliance and Sustainability Manager in the industrial sector, she brings a well-rounded perspective to environmental management.

Since joining SevenGen, Kate has earned her Class B Certified Wastewater Operator certification, adding value to clients seeking to enhance operational sustainability. She leads a team of environmental experts, working collaboratively to support healthier, more sustainable communities.

Kate is passionate about environmental stewardship and enjoys guiding clients on water, waste, air regulations, and sustainability initiatives.

Outside of work, she spends time with her daughter, explores state and national parks, swims, and enjoys crafts. An avid SCUBA diver, she loves Caribbean destinations and volunteers with Big Brothers Big Sisters.

Connect with Kate onLinkedIn here!