Landscape architecture firms across the United States design outdoor spaces that prioritize both aesthetics and environmental stewardship. These companies offer services ranging from urban planning to ecological restoration. They engage with communities, municipalities, and developers, emphasizing sustainable and thoughtful design. As urbanization increases and environmental considerations gain prominence, the industry is evolving to implement innovative solutions like green infrastructure and biophilic design. Technology integration, such as GIS mapping and 3D modeling, is altering how landscape architects visualize and realize projects. This focus on sustainability and community engagement reflects a broader commitment to improving the built environment.

The companies featured in this list reflect a range of sizes from small firms with under 50 employees to large companies boasting over 1,000. Located in key urban centers from California to New York, each was established between 1957 and 2008 and specializes in various aspects of landscape architecture, including urban planning, sustainable design, and public space development. Notably, firms such as SWA and Perkins&Will have distinguished themselves as influential players in the industry's growth and innovation.

Continue reading to learn about the top landscape architecture companies in the US.

Top 19 Landscape Architecture Companies in the US

1. Swa

• Website: swagroup.com
• Ownership type: Private
• Headquarters: Sausalito, California, United States (USA)
• Employee distribution: United States (USA) 88%, China 8%, Other 4%
• Founded year: 1957
• Headcount: 201-500
• LinkedIn: swa-group

SWA Group, based in Sausalito, California, is a prominent landscape architecture and urban design firm founded in 1957. With a workforce of over 500 employees, the company operates through eight independent studios located in major cities across the United States and China. SWA specializes in creating sustainable and resilient public spaces, serving municipalities and developers alike. Their services include landscape architecture, urban design, and planning, all aimed at enhancing community infrastructure and fostering engagement. The firm has a rich history of designing significant projects, such as parks, waterfronts, and urban districts, which reflect their commitment to improving the health and well-being of both people and natural systems. SWA's innovative approach is evident in their research initiatives, which explore the intersection of design, climate adaptation, and community needs. As a 100% employee-owned company, SWA promotes a culture of collaboration and shared responsibility, further strengthening their position in the landscape architecture industry.

2. Hargreaves Jones Landscape Architecture

• Website: hargreaves.com
• Ownership type: Private
• Headquarters: San Francisco, California, United States (USA)
• Founded year: 1983
• Headcount: 11-50
• LinkedIn: hargreaves-associates

Hargreaves Jones Landscape Architecture is a San Francisco-based firm specializing in landscape architecture and urban planning. Established in 1983, the company has built a reputation for transforming urban environments into iconic landscapes. They work with a range of clients, including municipalities and educational institutions, to design public spaces that foster community interaction and promote environmental sustainability. The firm operates from offices in New York City, San Francisco, and Cambridge, Massachusetts, and is known for its collaborative approach to design. Hargreaves Jones has been recognized with over 100 awards, including the Cooper Hewitt National Design Award and the Rosa Barba International Landscape Prize, reflecting their impact and innovation in the field. Their projects, such as the Queen Elizabeth Olympic Park and Scissortail Park, demonstrate their ability to integrate ecological considerations with urban needs, making them a significant player in the landscape architecture industry.

3. LandDesign

• Website: landdesign.com
• Ownership type: Family Owned
• Headquarters: Charlotte, North Carolina, United States (USA)
• Employee distribution: United States (USA) 99%
• Founded year: 1978
• Headcount: 201-500
• LinkedIn: landdesign

LandDesign is a family-owned design firm based in Charlotte, North Carolina, with additional offices in Washington D.C., Dallas, Orlando, and Boulder. Established in 1978, the company specializes in civil engineering, landscape architecture, and urban design. They cater to a variety of clients, including developers and municipalities, focusing on the creation of sustainable and functional urban spaces. LandDesign employs a collaborative methodology that integrates the perspectives of functional, physical, and social factors to ensure that each project meets the needs of its clients and the communities they serve. Their portfolio includes notable projects such as Bell Tower Green and Ballantyne Reimagined, showcasing their ability to transform spaces into valuable community assets. The firm is also recognized for its thought leadership in the industry, frequently sharing insights and participating in professional events.

4. Design Workshop

• Website: designworkshop.com
• Ownership type: Corporate
• Headquarters: Denver, Colorado, United States (USA)
• Employee distribution: United States (USA) 93%, India 4%, Other 3%
• Latest funding: January 2025
• Founded year: 1969
• Headcount: 51-200
• LinkedIn: design-workshop

Design Workshop is a landscape architecture and urban design firm based in Denver, Colorado, with a history dating back to 1969. The company specializes in creating sustainable environments that are both functional and visually appealing. They work with a range of clients, including municipalities, private developers, and community organizations, providing services that span landscape architecture, urban planning, and strategic design. Design Workshop employs a collaborative approach, ensuring that their projects not only meet client needs but also resonate with the communities they serve. Their portfolio includes a variety of project types, from parks and open spaces to urban planning and residential gardens. The firm has been recognized with numerous awards from organizations such as the Urban Land Institute and the American Society of Landscape Architects, highlighting their impact and innovation in the field. Furthermore, Design Workshop is 100% employee-owned, which fosters a strong commitment to quality and community engagement across all their projects.

5. PWP Landscape Architecture

• Website: pwpla.com
• Ownership type: Private
• Headquarters: Berkeley, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1983
• Headcount: 11-50
• LinkedIn: pwpla

PWP Landscape Architecture, based in Berkeley, California, is a private firm founded in 1983. With a team of around 40 employees, the company specializes in creating innovative designs for parks, gardens, civic landscapes, and cultural institutions. Their portfolio includes a variety of projects that highlight their expertise in ecological restoration and community engagement. PWP has collaborated with government agencies and private developers, demonstrating their ability to navigate different client needs. The firm emphasizes sustainability in its design process, integrating planted systems and biophilic design to enhance urban environments. Their work has garnered recognition through various awards, reflecting their impact in the landscape architecture sector.

6. Perkins&Will

• Website: perkinswill.com
• Ownership type: Private
• Headquarters: Chicago, Illinois, United States (USA)
• Employee distribution: United States (USA) 73%, Canada 11%, United Kingdom (UK) 6%, Other 10%
• Founded year: 1935
• Headcount: 1001-5000
• LinkedIn: perkins-will

Perkins&Will is a prominent design firm based in Chicago, Illinois, founded in 1935. With a workforce of over 2,800 employees, the firm specializes in architecture, planning, and landscape architecture. They serve a variety of sectors, including healthcare, education, and urban development, focusing on innovative and sustainable design solutions. Perkins&Will has a global presence, with studios in major cities across the United States, Canada, and beyond. Their work in landscape architecture is notable, as they integrate environmental considerations into their designs, aiming to create spaces that enhance community well-being and resilience. The firm has been recognized for its commitment to sustainability and social purpose, further solidifying its role in the landscape architecture industry.

7. BIG - Bjarke Ingels Group

• Website: big.dk
• Ownership type: Corporate
• Headquarters: Brooklyn, New York, United States (USA)
• Employee distribution: Denmark 32%, United States (USA) 26%, United Kingdom (UK) 26%, Other 16%
• Latest funding: $335.0M, June 2014
• Founded year: 2006
• Headcount: 501-1000
• LinkedIn: big---bjarke-ingels-group

BIG - Bjarke Ingels Group, founded in 2006, is an architecture firm based in Brooklyn, New York, with a global presence. The company specializes in innovative design solutions across various sectors, including architecture, landscape design, and engineering. With a workforce of over 1,600 employees, BIG serves both public and private clients, focusing on sustainable and functional designs that enhance urban environments. Their portfolio includes high-profile projects that reflect a commitment to creativity and sustainability. BIG has also received significant funding, amounting to $335 million, which underscores its active role in the industry. The firm’s landscape architecture division, led by experienced professionals, has contributed to projects that integrate natural elements into urban settings, promoting ecological balance and community engagement.

8. Reed Hilderbrand LLC Landscape Architecture

• Website: reedhilderbrand.com
• Ownership type: Private
• Headquarters: Cambridge, Massachusetts, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2000
• Headcount: 51-200
• LinkedIn: reed-hilderbrand-associates

Reed Hilderbrand LLC Landscape Architecture, based in Cambridge, Massachusetts, and New Haven, Connecticut, is a landscape architecture firm that specializes in transforming landscapes with purpose and intent. Founded in 2000 by Douglas Reed and Gary Hilderbrand, the firm has built a reputation for its collaborative work with artists, architects, and urban developers. Their projects range from urban centers and museum landscapes to academic campuses and private residences, showcasing their ability to create spaces that resonate culturally and environmentally. Reed Hilderbrand has received over seventy design awards, including the prestigious ASLA Landscape Architecture Firm of the Year in 2013. The firm is committed to enhancing community value and environmental quality through innovative design solutions, making them a significant contributor to the landscape architecture industry.

9. OJB Landscape Architecture

• Website: ojb.com
• Ownership type: Private
• Headquarters: Houston, Texas, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1989
• Headcount: 51-200
• LinkedIn: ojb-landscape-architecture

OJB Landscape Architecture is a Houston-based firm specializing in landscape architecture and urban planning. Founded in 1989 by James Burnett, the firm has grown to include six offices across the United States. OJB is dedicated to enhancing public spaces, promoting community engagement, and improving ecological health through thoughtful design. Their services range from landscape design to urban planning and maintenance advisory, catering to both public and private clients. OJB has received over 150 significant awards for their projects, including four ULI Open Space Awards and the National Design Award for Landscape Architecture from the Cooper-Hewitt, Smithsonian National Design Museum. The firm emphasizes a collaborative approach, working closely with municipal leaders and stakeholders to create vibrant public spaces. Their research initiative, OJB*lab, focuses on analyzing design performance and advancing sustainable practices in landscape architecture. OJB's commitment to social equity and environmental responsibility is evident in their support for initiatives aimed at promoting diversity within the profession.

10. Nelson Byrd Woltz Landscape Architects

• Website: nbwla.com
• Ownership type: Private
• Headquarters: Charlottesville, Virginia, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1985
• Headcount: 11-50
• LinkedIn: nelson-byrd-woltz-landscape

Nelson Byrd Woltz Landscape Architects, based in Charlottesville, Virginia, is a private landscape architecture firm founded in 1985. With a team of approximately 42 employees, the firm specializes in creating sustainable and visually appealing outdoor spaces. They work with municipalities, private developers, and various organizations, focusing on design excellence that integrates ecological and cultural systems. Their projects range from community parks to intricate gardens, emphasizing the importance of community engagement and ecological health. The firm has garnered multiple awards for its work, showcasing its influence and commitment to the landscape architecture industry. Notable projects include the EcoCommons at Georgia Tech and the Kinder Land Bridge at Memorial Park, both of which have received prestigious accolades. Nelson Byrd Woltz continues to shape outdoor environments that foster connection and stewardship among communities.

11. Hitchcock Design Group

• Website: hitchcockdesigngroup.com
• Ownership type: Private
• Headquarters: Naperville, Illinois, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1980
• Headcount: 51-200
• LinkedIn: hitchcock-design-group

Hitchcock Design Group is a landscape architecture and urban design consultancy based in Naperville, Illinois. Established in 1980, the firm specializes in creating sustainable outdoor spaces that enhance community living. With a team of approximately 60 employees, they provide a wide array of services, including landscape architecture, urban design, and master planning. Their clientele includes developers, municipalities, and educational institutions, reflecting their versatility in addressing various project needs. The firm is known for its focus on thoughtful design that fosters community interaction and environmental stewardship. Their portfolio features notable projects such as the Kankakee Riverfront Master Plan and the Advocate Good Shepherd Hospital healing garden, showcasing their expertise in civic, healthcare, and recreational spaces. Hitchcock Design Group is committed to improving the quality of life through innovative design solutions, making them a significant player in the landscape architecture industry.

12. TBG Partners

• Website: tbgpartners.com
• Ownership type: Venture Capital
• Headquarters: Austin, Texas, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: November 2023
• Founded year: 1987
• Headcount: 51-200
• LinkedIn: tbg-partners

TBG Partners is a landscape architecture and urban design firm based in Austin, Texas, founded in 1987. With a team of approximately 158 employees, the firm specializes in transforming complex sites into functional and sustainable outdoor spaces. They provide a range of services, including landscape architecture, urban planning, and ecological restoration, catering to both municipalities and private developers. TBG Partners is known for its innovative approach to design, focusing on creating environments that foster community interaction and ecological health. Their portfolio includes notable projects such as the Oracle Waterfront Campus and the Alliance Children’s Garden, showcasing their ability to blend aesthetics with practicality. The firm emphasizes collaboration and stakeholder engagement in its design process, ensuring that the needs of the community are met while enhancing the natural landscape.

13. Hoerr Schaudt Landscape Architects

• Website: hoerrschaudt.com
• Ownership type: Private
• Headquarters: Chicago, Illinois, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1991
• Headcount: 51-200
• LinkedIn: hoerr-schaudt-landscape-architects

Hoerr Schaudt Landscape Architects is a Chicago-based firm that has been crafting beautiful and functional outdoor spaces since its inception in 1991. The company operates with a team of skilled landscape architects and horticulturists, dedicated to creating gardens that connect people with nature. Their portfolio includes a wide array of projects, from intimate residential gardens to expansive public parks and commercial developments. The firm prides itself on its dual approach, balancing artistic vision with practical execution. This is evident in their internal quality control team, Siteworks, which ensures that designs are not only visually appealing but also feasible and sustainable. Hoerr Schaudt's commitment to ongoing landscape management further highlights their dedication to the longevity and health of their projects. With offices in Chicago, Kansas City, and Los Angeles, they are well-equipped to serve clients across various regions, maintaining a strong presence in the landscape architecture industry.

14. Mig

• Website: migcom.com
• Ownership type: Corporate
• Headquarters: Berkeley, California, United States (USA)
• Employee distribution: United States (USA) 95%, Other 5%
• Latest funding: July 2013
• Founded year: 1982
• Headcount: 201-500
• LinkedIn: mig

MIG, Inc. is an urban planning and landscape architecture firm based in Berkeley, California, founded in 1982. The company specializes in creating inclusive communities and environments, offering services in urban planning, landscape design, and community engagement. MIG focuses on enhancing public spaces for municipalities and organizations, emphasizing participatory planning and regenerative design. Their approach integrates community needs with ecological considerations, aiming to foster social equity and environmental sustainability. With a workforce of over 200 employees, MIG operates multiple offices across the United States, including locations in California, Colorado, New York, Oregon, Texas, and Washington. The firm has received accolades for its projects, such as the Texas APA awards, which recognize outstanding contributions to planning and public outreach. MIG's commitment to innovative design and community involvement positions it as a relevant player in the landscape architecture industry.

15. Future Green Studio

• Website: futuregreenstudio.com
• Ownership type: Private
• Headquarters: Brooklyn, New York, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2008
• Headcount: 11-50
• LinkedIn: future-green-studio

Future Green Studio, based in Brooklyn, New York, is a private landscape design firm founded in 2008. The company specializes in urban ecology, offering services that include landscape design, research, and fabrication. Their work primarily targets clients in the arts, education, and commercial sectors, aiming to create sustainable outdoor spaces that foster community engagement and enhance urban environments. Future Green Studio has been involved in various high-profile projects, such as the design of the Rockefeller Center Channel Gardens and the St. John's Terminal, which serve as examples of their innovative approach to integrating nature within urban settings. The firm has also been featured in prominent publications, showcasing their contributions to the field and their commitment to promoting biodiversity through thoughtful design.

16. Ggn

• Website: ggnltd.com
• Ownership type: Private
• Headquarters: Seattle, Washington, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1999
• Headcount: 11-50
• LinkedIn: gustafson-guthrie-nichol

Gustafson Guthrie Nichol (Ggn) is a Seattle-based landscape architecture firm founded in 1999. With a team of 11-50 employees, Ggn focuses on creating sustainable outdoor spaces that incorporate native plants and ecological practices. The firm has worked on a variety of projects, ranging from garden design for homeowners to large-scale public parks. Notable works include the Lurie Garden at Millennium Park in Chicago and the Hemisfair Civic Park in San Antonio, Texas. Ggn emphasizes a site-specific design approach, aiming to connect people with their local landscapes and histories. The firm has been recognized with several awards, including the ASLA National Landscape Architecture Firm Award and the Smithsonian’s Cooper Hewitt National Design Award for Landscape Architecture. Ggn also engages in educational initiatives, with team members frequently participating in lectures and presentations to share their expertise and promote ecological awareness.

17. Hollander Design Landscape Architects

• Website: hollanderdesign.com
• Ownership type: Private
• Headquarters: New York, New York, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1991
• Headcount: 11-50
• LinkedIn: hollander-design

Hollander Design Landscape Architects, founded in 1991, is a private firm based in New York and Chicago, specializing in the design of outdoor spaces. With a team of 36 employees, the firm has built a reputation for crafting landscapes that are not only visually appealing but also functional. Their projects range from residential estates to urban developments and institutional landscapes, reflecting a commitment to respecting the unique ecologies of each site. Hollander Design has collaborated with notable clients and architects, contributing to significant projects like The REACH at the Kennedy Center and various luxury residential properties. The firm has garnered multiple awards, including honors from the American Society of Landscape Architects (ASLA), which underscores their impact and standing in the industry. Their approach combines a passion for horticulture with a keen eye for design, making them a noteworthy player in landscape architecture.

18. OEHME, VAN SWEDEN | OvS

• Website: ovsla.com
• Ownership type: Private
• Headquarters: Washington, D.C., District Of Columbia, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1975
• Headcount: 11-50
• LinkedIn: oehme-van-sweden-%26-associates

OEHME, VAN SWEDEN | OvS is a landscape architecture firm based in Washington, D.C., founded in 1975 by Wolfgang Oehme and James van Sweden. The firm specializes in creating outdoor spaces that blend art, ecology, and functionality. With a team of landscape architects, horticulturalists, and designers, OvS focuses on enhancing the connection between people and nature through thoughtful design. Their work spans a wide range of projects, including urban redevelopments, public gardens, and private estates. Notable projects include the gardens at the National World War II Memorial and the Martin Luther King Jr. Memorial Library, showcasing their expertise in both civic and residential landscapes. The firm has published several books documenting their design philosophy and projects, further solidifying their presence in the landscape architecture community. Currently led by Eric D. Groft and a new generation of principals, OvS continues to innovate and influence the field of landscape architecture.

19. Andropogon Associates, Ltd.

• Website: andropogon.com
• Ownership type: Private
• Headquarters: Philadelphia, Pennsylvania, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1975
• Headcount: 11-50
• LinkedIn: andropogon-associates-ltd-

Andropogon Associates, Ltd. is a Philadelphia-based landscape architecture and ecological design firm that has been operational since 1975. With a team of 18 employees, the firm specializes in sustainable design practices that create functional and aesthetically pleasing outdoor spaces. Their services include landscape design, environmental assessments, and ecological restoration, catering to a wide range of clients such as municipalities, educational institutions, and cultural organizations. Andropogon emphasizes a design philosophy that seeks to restore and enhance the integrity of natural ecosystems, ensuring that their projects are not only beautiful but also beneficial to the environment. The firm has a notable portfolio that includes various public and private projects, demonstrating their capability to address complex design challenges while promoting ecological health. Their work has been recognized with awards from professional organizations, further solidifying their standing in the industry.

Landscape Architecture Insights: Key Companies in the US

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