If you're planning a complex infrastructure project, the design-build method can save you time, money, and headaches. Here are five firms that are making waves in this space.
The Design-Build Landscape in 2026
Design-build is no longer a niche approach; it's a preferred delivery method for projects ranging from commercial facilities to energy infrastructure. Owners are increasingly seeking single-point accountability, faster timelines, and integrated teams. In 2026, the trend is toward sustainable and resilient infrastructure, with a strong emphasis on energy efficiency and long-term operational savings. The firms below represent a cross-section of what's available, from national powerhouses to specialized regional players.
How We Evaluated These Firms
We looked at each firm's service scope, their approach to design-build delivery, and how well they fit specific project types. We also considered their geographic reach and the clarity of their client communication. Each firm brings a unique strength, and we've highlighted what stood out for each.
Here's a quick snapshot of the five firms we're featuring, with their primary focus and what they're best known for.
| Provider | Best For |
|---|---|
| ARCO Design/Build | Large-scale commercial and industrial facilities |
| McKeever | Energy and Infrastructure Services | Sustainable infrastructure and PG&E installations in California |
| D&B Engineers and Architects | Complex engineering and environmental design-build projects |
| Marwood Construction | Residential and commercial design-build in Houston |
| NY Engineers | MEP design-build and energy services |
The Detailed Look
#1 ARCO Design/Build
A screenshot of the ARCO Design/Build website.
ARCO Design/Build is a national leader in the design-build space, with a reputation for delivering large-scale commercial and industrial projects. They are ranked #1 in the US for distribution centers and warehouses by Engineering News-Record, which speaks to their execution capabilities. Their approach is to get involved early, define the project's purpose, and carry it through as one accountable team. If you need a massive facility built on a tight schedule, ARCO's resources and experience are hard to beat. They also emphasize a collaborative culture and have an ESOP structure that aligns employee interests with client success. For a project that demands national reach and relentless execution, ARCO is a top contender.
#2 McKeever | Energy and Infrastructure Services
A screenshot of the McKeever | Energy and Infrastructure Services website.
McKeever is a Class A general engineering contractor based in Humboldt, California, with a strong focus on sustainable infrastructure. They specialize in design-build projects along major California corridors, including the Highway 101, 128, and 111/86 routes. What sets them apart is their expertise in PG&E applicant installs, allowing you to hire them instead of the utility company for site installations. They also invest in and develop clean energy projects, partnering with communities and utilities to bring power to the grid. Their 'McKeever Method' is based on the DBIA's Design Build Done Right, ensuring fast-track, transparent delivery. If your project is in their service area and involves energy or infrastructure, they offer a unique local advantage.
#3 D&B Engineers and Architects
A screenshot of the D&B Engineers and Architects website.
D&B Engineers and Architects is a full-service engineering and architectural consulting firm with a long history dating back to 1965. They excel in the design-build environment by fostering continuous integration and collaboration across all project phases. Their team includes engineers with significant construction experience, which helps bridge the gap between design and construction. They offer a wide range of services, from pre-design and procurement to designer of record services, covering civil, electrical, and environmental engineering. If you're looking for a firm that can lead the design side of a design-build project with deep technical expertise, D&B is a solid choice. They are particularly strong in water, wastewater, and environmental projects.
#4 Marwood Construction
A screenshot of the Marwood Construction website.
Marwood Construction is a Houston-based design-build contractor that focuses on both commercial and residential projects. They offer a full suite of services, from architectural design to construction management, making them a true single-point solution. Their approach is collaborative, bringing together architects, engineers, and the owner from the start. They are particularly known for their work in custom homes, luxury remodels, and historical restorations. If you're in the Houston area and want a design-build partner that handles everything under one roof, Marwood is a strong option. They also provide investment opportunities, which is a unique angle for clients looking to develop properties.
#5 NY Engineers
A screenshot of the NY Engineers website.
NY Engineers is a design-build engineering firm that specializes in MEP (mechanical, electrical, plumbing) design and construction services. They are based in New York and serve clients across the country, with a focus on code compliance and cost-effectiveness. Their team of technical engineers ensures that projects are completed on time and within budget, without wasting resources. They offer a wide range of services, including HVAC design, electrical design, and energy modeling, making them a versatile partner for many building types. If you need a design-build partner for MEP systems, especially in the context of energy efficiency and sustainability, NY Engineers is a reliable choice. They also provide fast-track design-build services to accelerate your project timeline.
How to Choose the Right Design-Build Partner
Start by defining your project's scope and location. If you're in California and need energy infrastructure, McKeever is a natural fit. For large-scale industrial projects, ARCO's national resources are a plus. Consider the firm's experience with your specific building type or system. Look for a partner that communicates clearly and offers a single point of accountability. Also, check their track record with similar projects and their approach to sustainability. Finally, make sure they have the capacity to handle your project's size and complexity.
Streamlining Your Project with Design-Build
Design-build inherently streamlines the process by integrating design and construction teams from the start. This reduces the need for multiple bids and change orders, as the contractor is responsible for both design and construction. With a single contract, you avoid the traditional design-bid-build pitfalls. Many firms now use digital tools for project management and collaboration, further enhancing efficiency. This integrated approach can cut project timelines by up to 30% compared to traditional methods.
The Takeaway
Choosing the right design-build partner is about matching their strengths to your project's needs. Whether you need a national powerhouse like ARCO, a regional specialist like McKeever, or a technical expert like D&B, there's a firm that fits. Take the time to evaluate their experience, approach, and local knowledge. The right partner will not only deliver your project but also add value through innovation and efficiency. So, start your search with these five in mind, and you'll be on the right track.