Jonathan Alderson Landscape Architects Inc.

What Jonathan Alderson Landscape Architects Inc. does

Jonathan Alderson Landscape Architects, Inc. is a privately held landscape architecture design practice founded in 1993 and headquartered in Wayne, Pennsylvania, in the Philadelphia metropolitan area. The firm operates with a 9-employee team and delivers professional landscape architecture services across five project categories: public gardens, private gardens, campus, park, and healthcare. Its client base spans public gardens and horticultural institutions, high-end private residential estates, educational institutions (Swarthmore College, University of Pennsylvania), healthcare facilities (Reading Hospital, Lancaster General Health), corporate campuses (CSC, Aerzen), and parks and public spaces primarily across Pennsylvania, Delaware, and Michigan.

The firm's core offering is full-service landscape architecture, with technical specialization in ecological and restorative design. Practice areas include native meadow restoration (exemplified by the 86-acre Meadow Garden at Longwood Gardens, opened June 2014), green roof systems spanning extensive and intensive planting conditions, accessible elevated walkway design, stream corridor restoration, and Living Building Challenge design. Projects emphasize native plantings, stormwater management, wildlife habitat creation, and use of local materials. The firm collaborates with architectural firms (e.g., Ballinger on the Reading Hospital expansion) and specialized partners (e.g., Roofmeadow on the Reading Hospital roof garden) for complex multi-disciplinary institutional work.

The business operates on a professional services revenue model, generating income through design fees across project phases including master planning, schematic design, design development, construction documentation, and construction observation. Pricing is project-by-project and not publicly disclosed. The go-to-market motion is direct enterprise client engagement with institutions, corporations, and high-net-worth private clients, supported by a website portfolio and reputation-based referrals rather than active digital marketing. No external funding, parent company, or institutional investor is referenced; ownership appears founder-held.

Name

Jonathan Alderson Landscape Architects Inc.

Legal name

Jonathan Alderson Landscape Architects, Inc.

Website

https://jonathanalderson.com

Company type

Private

Founded year

1993

Operating status

Operating

Headcount range

1–10 employees

Short description

Jonathan Alderson Landscape Architects is a privately held, Wayne, Pennsylvania-based landscape architecture practice founded in 1993, specializing in ecological and restorative design for public gardens, private estates, healthcare facilities, educational campuses, and corporate clients across the Mid-Atlantic.

Ownership category

akta.pro rank

Product category

Landscape Architecture Services

NAICS

Landscape Architectural Services (541320)

akta.pro primary industry

Landscape Architecture & Site Design (BPAHAKAC)

akta.pro secondary industries

Residential Landscape Design (HSAIABAA), Commercial Landscape Design & Installation (HSAIABAJ), Landscape Design, Build & Installation (Hardscapes/Softscapes) (BPABADAF)

Keywords

• Landscape architecture design
• Ecological landscape restoration
• Native plant gardens
• Green roof design
• Campus master planning

Headquarters

HQ city

Wayne

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Technology or R&D

Revenue model

1. Landscape Architecture Design Services: Professional landscape architecture services for designing gardens, campuses, parks, and public spaces. Revenue is generated through design fees for master planning, schematic design, design development, construction documentation, and construction observation services.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

Jonathan Alderson Landscape Architects is a professional landscape architecture design practice delivering master planning, schematic design, design development, construction documentation, and construction observation services. The firm designs gardens, campuses, parks, healthcare facilities, and private estates with an emphasis on sustainable, native, and ecologically restorative landscape approaches. Projects range from intimate private gardens to large-scale institutional landscapes spanning 550 acres.

Product overview

Jonathan Alderson Landscape Architects Inc. is a design practice offering comprehensive landscape architecture services rather than a software product company. The firm's portfolio consists of landscape design projects organized across five categories: Public Gardens (including Longwood Gardens Meadow Garden, Chanticleer Elevated Walk, Dow Gardens Whiting Forest, Cheslen Preserve, Snake Creek Restoration), Private Gardens (residential estates, farms, pool gardens, sustainable houses), Campus (university landscapes including Swarthmore College, UPenn, corporate campuses), Park (public parks and trail projects), and Healthcare (hospital gardens and therapeutic landscapes). Projects emphasize sustainable design, native plantings, stormwater management, and ecological restoration. Notable projects include an 86-acre meadow garden at Longwood Gardens (opened 2014), an accessible elevated walkway at Chanticleer, a LEED Gold-certified education center at Swarthmore College, and a Living Building Challenge project at Swarthmore College's Dining Commons.

Differentiator

Problem solved

Functional benefit

Products and services

• Landscape Architecture Services Full-service professional landscape architecture and design services for residential, commercial, institutional, and public projects, including master planning, schematic design, design development, construction documentation, and construction observation. The service is delivered with a focus on sustainable, native, and ecological restoration approaches, and serves institutional clients, private estates, healthcare facilities, educational campuses, and corporate headquarters.

Quantifiable outcome

• The Meadow Garden at Longwood Gardens serves as a regionally important oasis for migratory birds, pollinators, and native wildlife
• +2 more outcomes

Named customers9 records

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Two partnerships are on record, tiered core.

• Ballinger ArchitectscoreStrategic or Co-development PartnerCollaborated with Ballinger Architects on the Reading Hospital expansion project to develop network of conventional and rooftop gardens spanning over one acre. This partnership demonstrates the firm's capability to integrate landscape design within complex institutional building projects.
• RoofmeadowcoreStrategic or Co-development PartnerPartnered with green roof pioneers Roofmeadow on the Reading Hospital roof garden project. The collaboration brought specialized green roof expertise to create healing gardens and meadows across extensive and intensive planting conditions.

Scale indicators5 records

Recent moves5 records

Expansion highlights3 records

Direct peers

• PWP Landscape Architecture: Berkeley-based landscape architecture firm with strong portfolio in public realm, campus, and urban design; comparable institutional client mix.
• Andrea Cochran Landscape Architecture: Award-winning Bay Area landscape architecture firm specializing in private residential and small-scale institutional projects; comparable boutique-firm positioning.
• LandArc / LSG Landscape Architecture: Mid-Atlantic-based landscape architecture firm with overlapping regional client base and similar scale of work in campus, healthcare, and public-realm projects.
• OLIN: Philadelphia-headquartered landscape architecture and urban design firm working on signature public-space, campus, and institutional projects at a similar scale and prestige tier as Jonathan Alderson.
• Oehme, van Sweden: Boutique landscape architecture firm with strong reputation in naturalistic and ecologically driven garden design; comparable in size and design philosophy.
• James Corner Field Operations: Landscape urbanism firm with high-profile public-space projects; comparable for cultural institution and large public garden commissions.
• Reed Hilderbrand: High-end landscape architecture practice with museum, campus, and public garden portfolios; comparable in scale and cultural-institution client mix to Alderson.
• Michael Van Valkenburgh Associates: Brooklyn-based landscape architecture firm known for large-scale public park and campus work; relevant comparable for institutional-scale commissions.
• Nelson Byrd Woltz Landscape Architects: Restoration-ecology-focused landscape architecture firm with comparable expertise in native plantings, large-scale meadow design, and institutional/cultural-commission work.

Broad incumbents

• SWA Group: Large, multi-office landscape architecture, planning, and urban design firm with broader service breadth; overlaps with Alderson on campus and park work.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat2 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/jonathan-alderson-landscape-architects-inc.

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Jonathan Alderson Landscape Architects Inc.