Best Mechanical Engineering Services in the USA

United States Mechanical Engineering Consultants

Across the United States, mechanical engineers are the unsung heroes of progress. They are the innovators who make buildings breathable, factories efficient, and products functional. From the manufacturing corridors of Michigan to the tech hubs of California, mechanical engineering is the backbone of American innovation, driving both infrastructure and invention forward.

The firms featured in this curated list represent the best of outsourced, fractional, and virtual mechanical engineering services in the U.S. They were selected by Digital Reference through an in-depth evaluation process that considered client reviews, technical sophistication, project success stories, and most importantly, leadership authenticity.

Each featured company doesn’t just design systems; they design trust. Their founders and CEOs are individuals whose work embodies the balance between precision and creativity. At Digital Reference, that spirit of radical authenticity and transparency defines everything we do, from helping professionals showcase verified references to revolutionizing how employers assess technical talent.

As industries shift toward flexible work and hybrid consulting, these mechanical engineering firms prove that quality and collaboration transcend location. 

Let’s Meet the US-based Mechanical Engineers Who Are Literally Building the Future. 🔩

Faunce Enterprises

What they do:
Faunce Enterprises delivers high-performance mechanical design, HVAC optimization, and energy systems engineering services with an emphasis on sustainable efficiency. They approach every project with the mantra: “Systems that perform and keep performing.”

Who they work with:
They serve developers, manufacturing firms, and municipalities seeking reliable long-term mechanical systems that balance cost, compliance, and sustainability.

Operating model:
Faunce Enterprises operates through a fractional and project-based consulting model, providing customized mechanical design support that scales with client needs — from early-stage modeling to full-scale implementation.

💡 Why they stand out:
🔩 Evidence-based design process
⚙️ Long-term energy performance optimization
🧠 Midwest-born craftsmanship meets digital innovation

Jesse Faunce, Founder & CEO of Faunce Enterprises

 Jesse has built a legacy around practical excellence. His engineering philosophy, grounded, detail-oriented, and sustainability-focused, is reflected in every project. A respected voice in industrial system design, he represents the very best of Midwestern mechanical leadership: honest work, tested expertise, and solutions that last.

Three Sixty MEP LLC

What they do:
Three Sixty MEP LLC is a premier MEP consultancy offering mechanical, electrical, and plumbing design for commercial and industrial spaces. Known for their full-circle project visibility, they ensure every detail is aligned from blueprint to build.

Who they work with:
Their partnerships include general contractors, real estate developers, and design-build firms seeking holistic, technology-driven engineering coordination.

Operating model:
Three Sixty MEP uses a cloud-integrated design management model, offering virtual collaboration tools that keep multi-state projects aligned in real time.

💡 Why they stand out:
🔩 End-to-end design coordination and clarity
⚙️ Strong cross-disciplinary integration
🧠 Commitment to client satisfaction through transparency

Mike Wright, Founder & Principal Engineer of Three Sixty MEP LLC

Mike Wright is an engineer with a builder’s mindset. His leadership merges practical site knowledge with the precision of modern design tools. He’s known for mentoring emerging engineers in BIM coordination and energy-conscious design, turning Three Sixty MEP into a model of efficiency and collaboration in the American construction landscape.

 Envision Mechanical Engineers

What they do:
Envision Mechanical Engineers provides mechanical system design, HVAC solutions, and sustainable infrastructure consulting, helping organizations create comfortable, energy-resilient environments.

Who they work with:
They work with universities, hospitals, and corporate facilities, offering mechanical design that balances comfort, compliance, and carbon reduction.

Operating model:
Their hybrid project model combines field insight with remote design support, allowing for efficient nationwide collaboration.

💡 Why they stand out:
🔩 Expert in high-efficiency building systems
⚙️ Deep specialization in energy benchmarking
🧠 Trusted for transparent, data-backed engineering

Nick Sauer, President & Principal Engineer of Envision Mechanical Engineers‍

Nick is a mechanical visionary. With years of experience in energy-efficient design, he leads his team toward environmental responsibility without sacrificing performance. His projects reflect balance: technical, environmental, and human. He’s the kind of leader who proves that sustainability is a form of engineering intelligence.

‍Protoshop Inc

What they do:
Protoshop Inc. provides rapid prototyping, mechanical fabrication, and production consulting, turning innovative ideas into engineered realities.

Who they work with:
Their clients include startups, research facilities, and industrial design studios that need prototypes built fast and accurately.

Operating model:
Their fractional prototype engineering framework enables flexible collaboration, offering design, build, and test services tailored to early-stage innovation.

💡 Why they stand out:
🔩 Fast, precise, and iterative prototyping processes
⚙️ Collaborative engineering relationships
🧠 Empowering invention through hands-on design

Dylann Ceriani, Co-founder & Principal Mechanical Engineer of Protoshop Inc

Dylann is a leader who bridges artistry and mechanics. Her drive to democratize mechanical innovation has made Protoshop a go-to partner for creators across the U.S. With her creative pragmatism, she’s reshaping how ideas become reality, one prototype at a time.

Jim Isaacs, Co-Founder & Key Mechanical Engineering Lead of Protoshop Inc

Jim brings deep hands-on experience in mechanical design and prototype manufacturing. Alongside Dylann C., Jim recognized a gap in prototype molding services: long lead times, limited iteration capability, and partial design support, and he helped found Protoshop to change that. Protoshop Inc. His technical insight, focus on client collaboration, and mold-iteration agility reinforce Protoshop’s promise of “make it real, make it fast.”

 Engineering and Technical Consultants, Inc.

What they do:
ETC specializes in forensic mechanical and structural engineering, delivering technical assessments for building performance, system failures, and restoration.

Who they work with:
They serve property owners, legal firms, and construction companies in need of evidence-based technical evaluations.

Operating model:
ETC combines on-site forensic investigation with digital documentation, offering virtual expert consulting for nationwide projects.

💡 Why they stand out:
🔩 Unmatched forensic and diagnostic expertise
⚙️ Deep technical transparency in reporting
🧠 Objective, integrity-driven consulting

Joe Shuffleton, Owner & President at Engineering and Technical Consultants, Inc

Joe brings decades of experience in building diagnostics and system forensics. His methodical approach and commitment to evidence over opinion define ETC’s trusted reputation. His work embodies the Digital Reference standard, credibility, clarity, and care in every professional interaction.

Mechanical Electrical Engineering Consultants PC

What they do:
MEE Consultants offers multidisciplinary mechanical and electrical engineering services, emphasizing sustainable and code-compliant building systems.

Who they work with:
They collaborate with architects, municipalities, and private developers focused on smart, energy-efficient mechanical design.

Operating model:
Their consultative engineering workflow combines advanced modeling tools with collaborative client sessions, available both virtually and on-site.

💡 Why they stand out:
🔩 Streamlined integration of MEP systems
⚙️ Strong communication and adaptive project management
🧠 Passion for continual learning and innovation

Jordan Koenig, Principal Engineer at MEE Consultants PC

Jordan is a leader known for his clarity and responsiveness. His hands-on technical mentoring and meticulous attention to detail make him a standout in MEP consulting. He’s helping redefine mechanical engineering as both a technical and human discipline, where clarity builds confidence.

Consultant Engineering Service, Inc.

What they do:
CES delivers comprehensive mechanical, plumbing, and process engineering design services with a commitment to accuracy and accountability.

Who they work with:
They serve public and private sectors, including government, healthcare, and commercial industries, with a focus on sustainable and high-performance facilities.

Operating model:
CES utilizes a collaborative digital project environment, connecting teams and clients through virtual design reviews and transparent progress tracking.

💡 Why they stand out:
🔩 Unwavering dedication to precision
⚙️ 40+ years of trusted engineering excellence
🧠 Female-led leadership in a technical field

Carol Stroupe, President of Consultant Engineering Service, Inc.

Carol is a trailblazer in the world of mechanical consulting, a leader whose technical mastery and visionary leadership have earned CES an enduring reputation. Her focus on collaboration and mentorship reflects her belief that engineering excellence begins with people, not just blueprints.

Engineering a More Authentic Future

From the detail-driven innovators at Faunce Enterprises to the visionary leadership of Carol Stroupe at CES, these firms define what makes American mechanical engineering so extraordinary: technical brilliance, human leadership, and a relentless drive to create better systems for a better tomorrow.

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At Digital Reference, we share that vision. Our mission is to revolutionize how talent is represented, trusted, and hired in the engineering space. By combining video resumes and verified professional references, we ensure that hiring decisions are built on truth, not just text.

Authenticity isn’t optional anymore; it’s the new currency of credibility. 💡