About Us

What gets our attention:

Designing building systems that are efficient and healthy is our passion! Through education and collaboration with our clients we reduce the environmental impact of their projects.  Our mission is to make the world a better place by creating efficient systems – this can be seen in the projects that we produce and the way we operate our business.

We exclusively choose to work with clients who demonstrate respect for the environment and the health of people who inhabit these spaces. We collaborate with our clients to build long-term value into their buildings by designing cost-effective, regenerative systems that make the world a better and more sustainable place.

We bring expertise, coupled with excitement and creativity, to every project. We keep and maintain an open-mind through every aspect of a project with the goal of leaving each building owner excited and satisfied.

We are members of ASHRAE,  and AIA and the USGBC.  We are also members of the International Facility Management Association, as part of our commitment to improved safety and air quality in commercial buildings & homes.

We do our part for the built environment and our community.  Reframing old business methods to a regenerative framework that focuses on profit, along with employee satisfaction, community involvement and building a sustainable future.

Our Staff

Steven Forrester

Steven Forrester

Principal Engineer


Steven Forrester started DMA Engineering in 2008 to make a difference in the world through his engineering talents– by designing high-quality renewable energy systems for residential and commercial buildings. Steven’s passion is pushing both the leading edge of design, and the way that people think and interact with buildings. Steven’s primary role at DMA as principal engineer, is to oversee projects and operations with his expertise in mechanical system design. He is the guiding force in soliciting business and is the visionary for the development of the team. 

Steven’s career experience validates his mission to make buildings better members of society. He brings over 20 years of experience to his current role including project management, valuable hands-on experience in how buildings are constructed, competency in energy modeling, technical assistance for the team, and quality assurance on all deliverables.

Steven is a Colorado native who grew up in the Washington Park neighborhood. He earned both his undergraduate and master’s degrees in Mechanical Engineering from the University of Colorado at Denver, and maintains his Professional Engineer’s licenses in two states. When not in the office, Steven is involved in a sport for every season as an avid rock-climber, surfer, biker, and snowboarder.

Lena Crabtree

Lena Crabtree

Programs Manager


Lena Crabtree is DMA’s Programs Manager, otherwise known as the Daily Lama of the Details. Her primary role here at DMA is to oversee company processes and procedures to ensure efficiency and effectiveness.  Lena helps us manage our resources, be responsive to clients and partners, and to communicate well.

Lena’s career experience validates her lifelong desire to leave a positive imprint on the planet. She brings to this role, 17 years of project management in the engineering and humanitarian sectors.  Previous engineering and marketing experience focused on the significant environmental and economic benefits of water storage in natural aquifers.

Originally a native of Florida, Lena relocated to the Front Range in search of big blue skies, plenty of sunshine, and wide-open spaces for outdoor play. When not in the office, Lena is hiking in the mountains, spending time in her garden, and involving herself with important humanitarian sectors.




Gabriel Solórzano

Gabriel Solórzano

Mechanical Design Engineer


Gabriel Solórzano is DMA’s Mechanical Design Engineer, otherwise known as our Design Tool, as he is usually on the drawing board. His primary role at DMA is to design energy-efficient HVAC and Hydronics systems. Gabriel helps by creating all the drawings, selections, and documents required for codes, permits, and construction.

Gabriel’s career experience and education validates his desire to design high-efficiency systems. He brings 10years of experience in engineering and construction of surface facilities for the oil and gas industry, education as an Energy Advisor, and EDGE Expert Certification. Gabriel brings to DMA a broad understanding of the energy interactions of a building.

A native from Quito, Ecuador, Gabriel collaborates remotely with DMA in pursuit of energy savings and a greener world. When not in the office, Gabriel enjoys swimming and going to the soccer arena to support his favorite team, LDU Quito.

Lizbeth Jaramillo

Lizbeth Jaramillo

Mechanical Engineer


Meet Lizbeth Jaramillo, a mechanical engineering superstar. She possesses exceptional skills in Mechanical Design, with a specialization in HVAC systems. Lizbeth supports senior engineers at DMA on various design projects. When it comes to equipment technologies, Lizbeth’s expertise shines through as she effortlessly selects, schedules, and creates schematic layouts for airside and hydronic systems.

Lizbeth has a diverse range of career experiences. In her previous roles, she conducted analysis, estimates, and annual projections for vehicle spare parts. She also gained valuable experience in HVAC inspection, maintenance, and repair, as well as collaborated on organizing weather data. Additionally, Lizbeth demonstrates proficiency in various software tools such as Python, MATLAB, LaTeX, Visual Basics, AutoCAD, Solidworks, Energy 2D, and Stream systems. Her knowledge extends to industrial security, ventilation, and air conditioning.

When Lizbeth isn’t conquering the engineering world, she enjoys engaging in sports, recreation, and cherishing quality family moments. But that’s not all—Lizbeth also dedicates her spare time to being a superhero, helping high school students enhance their knowledge and advocating for recycling, reducing, and reusing (3R) within the community.

Dan Schmied

Dan Schmied

Field Engineer


Dan Schmied is a seasoned professional in the HVAC/R industry, and he knows his stuff like no other.

For 13 years, Dan previously worked as an Operator and Owner of Sensible Energy LLC in Denver, CO. Dan built the company from the ground up, implementing effective practices and procedures to ensure its HVAC/R services were top-notch. His expertise lies in providing exceptional repair and replacement services for HVAC/R systems, with a special focus on crafting energy-efficient heating systems for newly constructed homes.

Dan’s journey in the HVAC/R world began back in 1998—before pursuing business classes at Red Rocks Community College. He also holds Denver Supervisor Certificates in Heating and Ventilation, Steam and Hot Water, and Refrigeration. Dan’s E.P.A. Certification in Refrigerants solidifies his expertise in the field, as do his NATE and IGSHPA certifications.

When he’s not doing his HVAC/R magic, he loves being outdoors, checking out classic cars, chowing down on good food, and having a blast. This guy knows how to enjoy life!

Arianna Perez

Arianna Perez

Administrative Assistant


Allow us to introduce Arianna Pérez, our remarkable Administrative Assistant at DMA of the Americas in Quito. In her role, Arianna manages various administrative tasks, including invoicing, payroll management for DMAA, financial forecasting, and ensuring accuracy in all aspects. With her professional approach, she excels in number crunching, report generation, and data entry, enabling her to track progress using weekly scorecards and departmental metrics. Collaborating with team members in both Ecuador and the US, Arianna aligns goals, drives improvements, and strategizes for optimal performance.

Arianna is set to complete her International Business degree from the Pontifical Catholic University of Ecuador in July 2023. Her previous experiences encompass diverse intern roles, where she reviewed and approved expense reports, provided registration invoices, supported the purchasing process, engaged with national and international suppliers, and participated in negotiations and vendor qualification. Additionally, Arianna has accumulated valuable career experience conducting process surveys, designing process flowcharts, and preparing process documentation.

During her free time, you can find Arianna enjoying relaxing nature walks with her family or spending time with her friends. She also has a musical side and takes pride in being part of the University Choir, where she shares her beautiful voice and spreads positive vibes.

Robin McIntosh Jr.

Robin McIntosh Jr.

Business Development Specialist

Robin McIntosh Jr. is the go-to guy for all things business development at DMA. With a solid decade under his belt in facilities management and engineering, he’s our Business Development Specialist extraordinaire. At DMA Engineering, Robin steers business initiatives, fosters relationships, spots fresh opportunities, and adds serious value to our overall success and growth.
In his previous role as the Senior Facilities Manager for the Regional Transportation District (RTD) in Denver, Robin exhibited strong leadership by overseeing maintenance work, implementing engineering solutions through audits, and managing construction projects to meet environmental standards. During his 20-year tenure, Robin also played the roles of Facilities Maintenance Manager, Supervisor, and Engineering Inspector at RTD, proving he’s the real deal – a team leader who sticks to the rules and safety guidelines.
Robin holds a Bachelor of Science in Basic Engineering from the Colorado School of Mines and is registered with the State of Colorado as an Engineer in Training. His accomplishments include creating impactful efficiency policies, successfully managing multiple divisions simultaneously, maintaining high customer satisfaction ratings, and leading a team to achieve budget reductions through energy-saving initiatives, earning recognition from upper management.