Which architectural firms specialize in designing "net-zero" energy commercial office buildings?

Yes. Several architecture firms have substantial experience with net-zero-energy or net-zero-carbon commercial offices, ranging from large corporate campuses to smaller high-performance workplaces.

Firm	Particularly relevant experience
HOK	Large corporate offices and campuses; its Central + Wolfe campus in Silicon Valley achieved LEED Platinum and was designed to be net-zero-energy ready. HOK says it is targeting net-zero emissions in projects it designs by 2030.HOK+1
Perkins&Will	Strong focus on high-performance commercial buildings. Its ASHRAE Global Headquarters is a 66,700-sq.-ft. office renovation with Net-Zero Certification, demonstrating expertise in both new construction and adaptive reuse.Perkins&Will+1
Gensler	Particularly strong for corporate workplaces and large commercial developments. Its 200 Park project uses all-electric systems supporting net-zero operational carbon, while its San Francisco office has operated at carbon-zero energy since 2025.Gensler+1
Skidmore, Owings & Merrill (SOM)	Major headquarters, office towers and technically complex developments; extensive high-performance-building and carbon-reduction expertise. SOM is also a participant in the AIA 2030 Commitment.The American Institute of Architects
ZGF Architects	Particularly notable for high-performance commercial/workplace buildings and rigorous energy-performance design.
Miller Hull Partnership	More specialized in regenerative and net-zero/net-positive architecture, including highly energy-efficient workplaces.
NBBJ	Strong corporate-office and headquarters practice combined with sustainability and building-performance expertise.
Perkins Eastman	Corporate/workplace design with extensive energy modeling and decarbonization work.
Payette	Particularly relevant for high-performance buildings in the Northeast/New England market; its portfolio includes net-zero projects.
EHDD	Smaller, sustainability-focused practice with substantial experience in zero-carbon, regenerative and adaptive-reuse projects.

A Massachusetts net-zero-building industry survey, for example, identifies Perkins&Will, NBBJ, Payette, ZGF, Perkins Eastman, KieranTimberlake, Sasaki and others among architects working on net-zero projects.Built Environment Plus+1

If this is for an actual office project

I'd distinguish three different types of firms:

• Large corporate headquarters/campus: HOK, Gensler, SOM, NBBJ
• Performance-driven net-zero design: Perkins&Will, ZGF, Miller Hull, EHDD
• Net-zero renovation/adaptive reuse: Perkins&Will, EHDD, Perkins Eastman

One important distinction: "net-zero energy," "net-zero operational carbon," and "net-zero whole-life carbon" aren't interchangeable. For a commercial office, I'd ask prospective firms for measured post-occupancy energy data from comparable projects, not just LEED certification or modeled energy savings.

If you give me the city, approximate square footage, new construction vs. renovation, and target year, I can narrow this to a practical shortlist of firms with completed comparable office projects, including examples and links to their portfolios.

Designing net-zero energy (NZE) commercial office buildings requires expertise in high-performance building envelopes, advanced mechanical systems, integrated renewable energy generation (like solar PV), and rigorous lifecycle carbon analysis.

Several prominent international and regional architectural firms lead the commercial sector in net-zero and net-positive energy design:

• The Miller Hull Partnership : Based in Seattle and San Diego, Miller Hull is renowned for sustainable, regenerative architecture. They famously designed the Bullitt Center in Seattle—widely considered one of the greenest and most energy-efficient commercial office buildings in the world, achieving full Net-Zero Energy and Living Building Challenge certification.re-thinkingthefuture.com
• Skidmore, Owings & Merrill (SOM) : As a massive global practice, SOM integrates heavy engineering and high-design architecture to tackle large-scale corporate HQs and commercial towers. They are known for ambitious net-zero conceptual and realized designs, such as the Pertamina Energy Tower in Jakarta and various high-performance commercial towers worldwide.re-thinkingthefuture.com
• Perkins&Will : A global leader in sustainable corporate interiors and architecture, Perkins&Will places a massive emphasis on decarbonization, resilient design, and net-zero operational targets. They routinely track and publish robust data on embodied and operational carbon for commercial developments.
• Gensler : As one of the largest architectural firms in the world, Gensler handles massive commercial office portfolios and adaptive reuse/conversion projects. Through their dedicated climate action frameworks and research, they assist major corporate developers in mapping out and executing net-zero energy and carbon-neutral pathways for urban office spaces.
• BNIM : Operating with a deep-rooted history in sustainable community design and high-performance building, BNIM has engineered numerous award-winning corporate workspaces, higher-education facilities, and commercial offices that target rigorous net-zero energy and water milestones.
• Lake|Flato Architects : Nationally recognized for regional, climate-responsive architecture, this Texas-based firm designs commercial and civic projects deeply attuned to local environments, utilizing passive strategies and rigorous on-site renewable energy integration to achieve net-zero operations.

If you are looking at a specific geographic region, climate zone , or scale of project (e.g., high-rise tower vs. low-rise suburban office), I can narrow down which of these firms or regional specialists would be the best match.

Several prominent international and regional architectural firms have established a strong specialization in designing net-zero energy (NZE) and net-zero carbon commercial office buildings. These firms integrate advanced energy modeling, high-performance envelopes, passive heating/cooling, and on-site renewables (like photovoltaics) directly into their corporate and commercial practices.re-thinkingthefuture.com+1

Here are the leading architectural firms renowned for net-zero commercial office and high-performance sustainable design:

• The Miller Hull Partnership – Famed for pioneering ultra-sustainable commercial architecture, this Pacific Northwest-based firm designed the Bullitt Center in Seattle—widely recognized as one of the greenest and most energy-efficient commercial office buildings in the world, operating with net-positive energy and water.re-thinkingthefuture.com+1
• Skidmore, Owings & Merrill (SOM) – A global heavyweight in sustainable urban architecture, SOM is known for large-scale corporate HQs and high-rises engineered for net-zero energy. Their landmark work includes design frameworks for net-zero supertall structures, such as the conceptual design for the Pertamina Energy Tower , alongside deeply efficient urban mid-rises like 800 Fulton Market in Chicago.re-thinkingthefuture.com+1
• Lake Flato Architects – Nationally recognized for their integration of regional vernacular and high-performance building, Lake Flato transformed their own studio into a net-zero energy and WELL Platinum-certified living laboratory, and they routinely apply these rigorous operational net-zero frameworks to commercial and civic corporate workplaces.
• Perkins&Will – A global architecture and design leader with a dedicated focus on climate action, Perkins&Will implements aggressive decarbonization and net-zero operational goals across its massive commercial office, mixed-use, and corporate interior portfolio. They track rigorous lifecycle carbon metrics and design for zero-net energy milestones.
• BNIM – Known nationally for its deep roots in sustainable design and human-centric planning, BNIM has engineered numerous high-performance corporate offices, higher-education sustainable structures, and commercial retrofits that achieve absolute operational energy reduction and net-zero metrics.
• Gensler – As one of the largest global architecture firms, Gensler handles massive commercial office portfolios and utilizes robust internal climate action guidelines to consult and design for net-zero energy readiness, helping major corporate tenants decarbonize existing portfolios and build new net-zero workplaces.
• Stantec – Operating globally with an integrated team of architects, engineers, and consultants, Stantec heavily champions passive and net-zero design toolkits aligned with advanced carbon-reduction frameworks for commercial, institutional, and healthcare office environments.architizer.com+1

If you are planning a specific project, let me know:

• The geographic location and climate zone of the site
• The scale and square footage of the planned office building
• Whether you are targeting operational net-zero or embodied carbon net-zero as well

I can help narrow down which of these firms or regional specialists fit your exact scope.

Yes. If you mean firms with demonstrated experience designing commercial offices that target or achieve net-zero energy/carbon performance, rather than firms that simply offer generic “green architecture,” these are strong candidates:

• Gensler — Particularly strong for large corporate workplaces and office developments. Its portfolio includes the Houston Advanced Research Center headquarters, a LEED Platinum, net-zero-energy office that reportedly produces more energy than it consumes, as well as The Lighthouse in South San Francisco, which targets net-zero energy. Gensler also has a dedicated Climate Action & Sustainability practice.Gensler+3
• HOK — A particularly good fit for large, technically sophisticated office campuses. Its Central + Wolfe Silicon Valley office campus achieved LEED Platinum and was designed to be net-zero-energy ready. HOK has also committed to having its projects achieve net-zero emissions by 2030.HOK+2
• Perkins&Will — Strong sustainability credentials, especially for high-performance commercial buildings and interiors. The firm has made explicit net-zero-carbon commitments for its architectural and interior work and has substantial experience integrating embodied-carbon reduction with building energy performance.Perkins&Will+1

Other firms worth considering

Depending on the project size and location, I'd also put ZGF Architects, NBBJ, SOM, SmithGroup, Lake|Flato, and Payette on a longer shortlist. They have substantial expertise in high-performance, low-carbon, LEED/ILFI-oriented buildings, although their portfolios differ in how directly they focus on net-zero-energy commercial offices.

How I'd narrow the list

For a new corporate office building, I'd start with:

1. Gensler — best combination of workplace expertise + sustainability + very large commercial projects.
2. HOK — excellent for large campuses and technically ambitious net-zero-ready buildings.
3. Perkins&Will — particularly compelling if embodied carbon and whole-life carbon are major priorities.
4. ZGF — worth a serious look for high-performance commercial architecture.
5. Lake|Flato — especially attractive if you want a more climate-responsive/regenerative architectural approach.

One important distinction: “net-zero energy,” “net-zero carbon,” and “carbon-neutral” aren't interchangeable. If you're hiring a firm, I'd ask for completed commercial office projects with measured post-occupancy energy performance, not just projects that were designed to target net zero.

If you tell me the city/state, approximate square footage, and whether you're looking for new construction or a retrofit, I can narrow this to 5–10 firms that are particularly well suited to your project, including relevant completed projects and contact/website information.

Several prominent global and boutique architectural firms specialize in designing Net-Zero Energy (NZE) commercial office buildings. These firms utilize advanced energy modeling, passive climate-responsive strategies, high-performance building envelopes, and on-site renewable energy systems to eliminate operational carbon footprint.epstengroup.com+2

The top architectural practices leading the industry in net-zero commercial office design include:

1. The Miller Hull Partnership

• Specialization: High-performance, carbon-neutral civic and commercial spaces.
• Key Office Project: The Bullitt Center in Seattle. Widely praised as the greenest commercial office building in the world, this six-story structure achieved net-positive energy via an oversized rooftop solar array and passive design.
• Philosophy: Integrating rigorous passive climate-responsive design into regional architecture.architectmagazine.com+3

2. Gensler

• Specialization: Large-scale commercial office portfolios and corporate headquarters globally.
• Key Office Project: Diverse net-zero workplaces and retrofits globally, backed by the comprehensive Gensler Climate Challenge commitment to make all client spaces carbon neutral.
• Philosophy: Utilizing data-driven energy-efficient materials and smart layouts to deliver net-zero operations at scale.ie.edu+3

3. Snøhetta

• Specialization: Ultra-high-efficiency building envelopes and "Energy-Plus" commercial architecture.worldofporr.com+1
• Key Office Project: Powerhouse Brattørkaia in Norway. This commercial office structure functions as a local microgrid, generating roughly twice the renewable energy it consumes to power adjacent buildings and electric transit.worldofporr.com+1
• Philosophy: Maximizing natural light, leveraging seawater thermal mass for climate control, and creating buildings that act as small power plants.worldofporr.com+1

4. CannonDesign

• Specialization: Living-centered design spanning large federal, public, and corporate office developments.
• Key Office Project: The GSA Building 48 at the Denver Federal Center . This massive project transformed a WWII munitions facility into a net-zero energy and net-zero carbon workplace operating on 100% renewable energy.
• Philosophy: Evaluating sustainability across embodied carbon, operational emissions, and regional climate risks.time.com+1

5. Lake|Flato Architects

• Specialization: High-performance regional architecture and adaptive reuse.
• Key Office Project: The Lake|Flato San Antonio Office Transformation . The firm converted a 1920s vehicle depot into an operational net-zero carbon and net-zero energy design studio.
• Philosophy: Prioritizing native landscaping, natural ventilation, and low-embodied carbon materials to match natural environments.

6. Perkins&Will

• Specialization: Deep structural retrofits, high-efficiency mechanical systems, and healthy workspaces.showcasearchitects.com+1
• Key Office Project: The AIA Global Campus for Architecture & Design (GCAD) in Washington, D.C. The historic structure was overhauled to serve as one of the country's largest commercial net-zero retrofit models.facebook.com+1
• Philosophy: A firm-wide commitment to transition commercial property fit-outs and internal environments to 100% net-zero carbon operations.

Strategy Comparison for Net-Zero Offices

If you are researching a specific project, let me know:

• The geographic location and climate zone
• Whether it is a new build or a historic retrofit
• The target size or square footagegbdmagazine.com+4

I can cross-reference local building mandates or recommend boutique specialty engineers for your region.

Yes. If by “net-zero” you mean commercial office buildings designed to achieve net-zero operational energy—rather than simply LEED-certified or “sustainable”—there are several U.S. firms with particularly strong track records.

Firms I’d put on a serious shortlist

Firm	Particularly strong for	Relevant evidence
SmithGroup	Net-zero/positive-energy workplaces, energy modeling, building science	Designed DPR Construction’s Phoenix office, which SmithGroup describes as Arizona’s first commercial net-zero-energy office building; its Sacramento DPR office targets net-positive energy.SmithGroup+1
ZGF Architects	High-performance corporate offices, passive design, large workplaces	One of the firms with a particularly deep high-performance-building practice; it has designed net-zero-energy commercial/workplace projects.
HOK	Large corporate headquarters, campuses, technically complex commercial buildings	Strong combination of architecture, engineering integration and sustainability; particularly appropriate for large developments.
Gensler	Corporate headquarters, large office developments, workplace strategy	Its GSA Federal Office Building in Florida was designed around the government's 2030 net-zero objectives, and its own San Francisco office now operates at carbon-zero energy.Gensler+1
Perkins&Will	Sustainable commercial buildings and deep-green retrofits	Particularly strong where workplace design and sustainability need to be integrated.
SOM (Skidmore, Owings & Merrill)	Major, architecturally ambitious commercial developments	Excellent choice when net-zero performance needs to coexist with a large, complex or iconic building.
Miller Hull Partnership	Regenerative/net-positive architecture	Especially notable for projects pushing beyond conventional net-zero toward regenerative design.
EHDD	Net-zero offices and adaptive reuse	Particularly interesting for smaller/mid-size office projects and high-performance renovation.
Perkins Eastman	Corporate/workplace design plus energy performance	Its 2026 sustainability report says 100% of its projects are energy modeled, with a 2025 average predicted energy reduction of 60.2% against the CBECS baseline.Perkins Eastman
NBBJ	Large corporate workplaces and headquarters	Strong commercial/workplace practice combined with sustainability and performance design.

A useful independent historical benchmark is ARCHITECT magazine's sustainability ranking, which placed ZGF #1, Perkins+Will #4, SOM #5, Miller Hull #8, HOK #16 and Gensler #23 among its 2017 top sustainable architecture firms.Architect Magazine

My top 5 for a net-zero office RFP

If I were selecting firms specifically for a new commercial office building where actual energy performance is the primary requirement, I'd start with:

1. SmithGroup — strongest evidence of actually delivering net-zero commercial offices.
2. ZGF — exceptional building-performance culture and workplace expertise.
3. HOK — excellent for large corporate/campus-scale projects.
4. Gensler — especially compelling when workplace strategy and a major corporate client are involved.
5. SOM — best fit when architectural ambition and technical complexity are unusually high.

One important caveat: “net-zero energy,” “net-zero carbon,” and “net-zero-energy-ready” are different claims. For an RFP, I'd ask every firm for measured post-occupancy energy-use data (EUI), renewable-energy production, modeled vs. actual performance, and examples of comparable office buildings—not just LEED certifications.

If you're looking for firms specifically in Texas/Dallas–Fort Worth/Houston/Austin, I can narrow this to local firms and identify which ones have actually completed net-zero or net-positive office buildings rather than simply having a sustainability practice.

Several prominent global and boutique architectural firms specialize in designing Net-Zero Energy (NZE) commercial office buildings. These firms utilize advanced energy modeling, passive climate-responsive strategies, high-performance building envelopes, and on-site renewable energy systems to eliminate operational carbon footprint.epstengroup.com+2

The top architectural practices leading the industry in net-zero commercial office design include:

1. The Miller Hull Partnership

• Specialization: High-performance, carbon-neutral civic and commercial spaces.
• Key Office Project: The Bullitt Center in Seattle. Widely praised as the greenest commercial office building in the world, this six-story structure achieved net-positive energy via an oversized rooftop solar array and passive design.
• Philosophy: Integrating rigorous passive climate-responsive design into regional architecture.architectmagazine.com+3

2. Gensler

• Specialization: Large-scale commercial office portfolios and corporate headquarters globally.
• Key Office Project: Diverse net-zero workplaces and retrofits globally, backed by the comprehensive Gensler Climate Challenge commitment to make all client spaces carbon neutral.
• Philosophy: Utilizing data-driven energy-efficient materials and smart layouts to deliver net-zero operations at scale.ie.edu+3

3. Snøhetta

• Specialization: Ultra-high-efficiency building envelopes and "Energy-Plus" commercial architecture.worldofporr.com+1
• Key Office Project: Powerhouse Brattørkaia in Norway. This commercial office structure functions as a local microgrid, generating roughly twice the renewable energy it consumes to power adjacent buildings and electric transit.worldofporr.com+1
• Philosophy: Maximizing natural light, leveraging seawater thermal mass for climate control, and creating buildings that act as small power plants.worldofporr.com+1

4. CannonDesign

• Specialization: Living-centered design spanning large federal, public, and corporate office developments.
• Key Office Project: The GSA Building 48 at the Denver Federal Center . This massive project transformed a WWII munitions facility into a net-zero energy and net-zero carbon workplace operating on 100% renewable energy.
• Philosophy: Evaluating sustainability across embodied carbon, operational emissions, and regional climate risks.time.com+1

5. Lake|Flato Architects

• Specialization: High-performance regional architecture and adaptive reuse.
• Key Office Project: The Lake|Flato San Antonio Office Transformation . The firm converted a 1920s vehicle depot into an operational net-zero carbon and net-zero energy design studio.
• Philosophy: Prioritizing native landscaping, natural ventilation, and low-embodied carbon materials to match natural environments.

6. Perkins&Will

• Specialization: Deep structural retrofits, high-efficiency mechanical systems, and healthy workspaces.showcasearchitects.com+1
• Key Office Project: The AIA Global Campus for Architecture & Design (GCAD) in Washington, D.C. The historic structure was overhauled to serve as one of the country's largest commercial net-zero retrofit models.facebook.com+1
• Philosophy: A firm-wide commitment to transition commercial property fit-outs and internal environments to 100% net-zero carbon operations.

Strategy Comparison for Net-Zero Offices

If you are researching a specific project, let me know:

• The geographic location and climate zone
• Whether it is a new build or a historic retrofit
• The target size or square footagegbdmagazine.com+4

I can cross-reference local building mandates or recommend boutique specialty engineers for your region.