The Greenhem Team

Director of GreenTech Solutions
German Airborne Veteran (AMF/NATO)

Joe Vintnell serves as President and Chief Executive Officer of Greenhem Inc. and leads the company’s GreenTech Solutions practice. With decades of international professional experience, Joe brings a unique combination of leadership, strategic vision, and deep industry knowledge that guides Greenhem’s mission toward sustainable growth and innovation.

Military & Leadership Backround

Before beginning his business career, Joe served in the German Army’s Airborne Infantry within NATO’s Allied Mobile Force (AMF), where he led a company headquarters section, oversaw personnel and logistics, and ensured operational readiness under demanding airborne conditions.

He also served as a Non-Commissioned Partnership Officer to the U.S. Army, coordinating joint training, interoperability, and unit-level cooperation with U.S. Army units. Joe’s service was recognized with several official certificates of achievement and commendation from the U.S. Army, honoring his contributions to partnership, interoperability, and leadership in multinational settings.

Professional Experience

Since 1994, Joe Vintnell has been a self-employed real estate agent and broker in Europe. Throughout his career, he has accumulated a wealth of knowledge and expertise in the green building industry. His consulting work focuses on the implementation of green technologies in the construction of environmentally friendly residences.

Under Joe’s leadership, Greenhem Inc. provides expert consulting services, guiding clients through the best practices in sustainable construction. Joe is excited to bring the latest European technologies for sustainable construction to North Carolina, ensuring that our local projects benefit from cutting-edge innovations in green building.

Detail-oriented, compassionate, and highly organized, Leslie is a seasoned Secretary with more than ten years of experience in customer service and administrative support. Throughout her career, she has developed a reputation for efficiency, reliability, and a strong ability to anticipate the needs of both colleagues and clients.

In addition to her administrative background, Leslie brings six years of expertise in management and marketing, where she successfully balanced operational oversight with creative problem-solving. Her skill set includes streamlining office procedures, improving workflow efficiency, and implementing systems that support productivity and growth

Known for her excellent interpersonal skills, Leslie thrives in collaborative environments while also demonstrating the initiative to work independently. She approaches challenges with a proactive mindset, ensuring that obstacles are addressed swiftly and effectively. With her blend of administrative expertise, management experience, and people-first approach.

Angela “Angie” is our compassionate and highly skilled Secretary at GreenHem Inc. With over 15 years of experience in bookkeeping and administrative support, Angie brings a wealth of knowledge, professionalism, and heart to our team.

Her background in management and customer engagement has honed her ability to keep operations running smoothly while maintaining a welcoming, client-focused atmosphere. Known for her attention to detail and strong organizational skills, Angie plays a key role in helping our office grow and thrive.

Every client who walks through our doors is greeted with Angie’s warm smile and genuine care. She holds an Associate Degree in Business Administration and carries a true passion for helping businesses succeed through structure, service, and positivity.

Green Construction
Licenced General Contractor

With a lifelong passion for building design and construction systems, Dominique brings more than 10 years of experience supporting steel construction projects, building layouts, and design coordination across a wide range of industries. She holds a Bachelor of Science degree with a focus in Architectural Engineering from Tennessee State University, with an academic concentration on building systems and structural concepts.

Dominique believes that great design is a collaborative effort and takes pride in working closely with licensed architects, engineers, vendors, and clients to support efficient and meaningful building design solutions. From conceptual sketches to detailed building layouts and construction documentation, she enjoys every step of the design coordination process.

Outside of work, Dominique enjoys being a mom, completing DIY projects, exploring architecture, and mentoring junior designers. She is excited to continue her professional journey with Greenhem Inc., contributing her experience within non-licensed building design and design support services.

Her work supports building design services and project coordination and does not include the practice of licensed architecture or engineering.

US Army Veteran

KayLee, Green Junior Consultant, Certified Building Designer and LEED Green Associate, is a U.S. Army Veteran and mother, dedicated to supporting the advancement of energy efficiency and sustainable building practices. She successfully completed her Building Designer examination and holds the LEED Green Associate credential, further strengthening her expertise in environmentally responsible residential design and green building solutions.

KayLee served in the U.S. Army from 2009 to 2020, including roles as an Electronics and Weapons Systems Repairer and later as a Warrant Officer and UH-60M Black Hawk pilot. Her military background has shaped her strong work ethic, attention to detail, leadership skills, and commitment to teamwork in complex and demanding environments.

With a solid foundation in building design, drafting, and sustainable construction principles, KayLee supports environmentally responsible residential design and drafting services, contributing to projects that emphasize energy efficiency, durability, and sustainability.

As an aspiring off-grid homesteader, KayLee brings hands-on, practical experience in residential construction and home improvement, combined with a strong understanding of energy-efficient residential solutions, to her work at Greenhem Inc.

Kimberly is a designer with a Master’s in Architecture from Florida A&M University. She began her career in Tallahassee, Florida, where she gained three years of experience working with an architectural firm. During her academic and professional journey, she developed a strong belief in the power of thoughtful design to enrich everyday life. Her work is driven by a passion for integrating nature into the built environment and a commitment to sustainable design practices.

Now based in Fayetteville, North Carolina, Kimberly continues to explore how design shapes the way we live, work, and interact with the world around us. She is dedicated to promoting green building strategies and increasing awareness of how natural resources can be thoughtfully incorporated into our communities.

Outside of her professional work, Kimberly enjoys cooking and watching movies with her husband, hiking scenic trails, and exploring cities – experiences that continually inspire her design perspective.

Sven brings a wealth of experience and a dynamic background to his role as Vice President of Greenhem Inc. His career began in the German Air Force, where he piloted Alpha Jets, Tornadoes, and T-37 aircraft. During his final three years of service, he pursued higher education, earning a Bachelor of Science in Business Administration from the Applied University of Science in Augsburg, Germany, along with additional degrees in IT Project Management and Web Design.

After retiring as a Major in 2006, Sven relocated to North Carolina with his family in 2007 and transitioned into the technology sector, working for a Dallas-based networking software company. His entrepreneurial mindset soon led him to establish his own web design company, which later evolved into Tangram Media Inc. in 2011. This company provided businesses across the U.S. and globally with innovative digital marketing solutions, including web design, social media management, online advertising, and consulting.

In May 2024, Sven closed his company, Tangramm Media Inc., and joined Greenhem Inc. as Vice President and Director of Real Estate and Marketing, bringing his expertise in digital strategy and business development to the company.Today, he continues to drive innovation and growth, ensuring that Greenhem Inc. remains a leader in sustainable real estate and marketing excellence.

Your New Keys to Homeownership 🗝️

As a newly licensed real estate professional, Wanda brings fresh energy, dedication, and a client-first approach to every interaction. Her background in tax preparation has provided her with a strong foundation in attention to detail, organization, and the ability to navigate complex financial information – skills that seamlessly translate into guiding clients through the home buying and selling process.

Wanda chose real estate because she is passionate about helping people find more than just a house – she wants to help them discover a place they can truly call home. Whether working with first-time buyers, growing families, or those looking to downsize, Wanda is committed to making each experience as smooth, informed, and enjoyable as possible.

Believing that every real estate transaction is unique, Wanda takes the time to truly listen to her clients’ needs and goals. By offering personalized guidance and support at every step – from the initial consultation to closing day and beyond—she ensures a stress-free and rewarding journey.

Wanda conducts her business with the highest ethical standards. Clients can rely on her for honest advice, transparent communication, and unwavering integrity in every transaction.

Backed by Greenhem Inc., Wanda provides clients with the resources, tools, and support they need to feel confident at every stage of their real estate journey. Her goal is simple: to earn trust, build long-lasting relationships, and hand over the keys to each client’s next chapter.

US Army Veteran

Brandt, Greenhem’s Marketing Manager, brings with him a background that spans many industries, with a goal that always ends with growing businesses. His previous roles have included sports journalism, showcasing his love of sports and writing simultaneously; writing for a craft beer blog, exemplifying his love for the art of brewing; and various construction and project management roles that built a solid foundation for the ins and outs of small business and the need for marketing. His experiences have given him the keys and insights to be able to position small businesses in a busy world full of search results and digital avenues to find customers.

With a background in various industries and a passion for all things marketing – from SEO and web design to #ThrowbackThursday social media posts – his attention to detail, eye for the brazen and bold, and unique personality put him in the driver’s seat for a great marketing department for both our needs and yours.

An army veteran and diehard Buckeye and Steeler fan, the self-described cigar and craft beer snob can be found enjoying the finer things in life, usually with his daughter at his side.