What Sweeney Associates does

Sweeney & Associates, Inc. is a privately held, founder-owned professional services firm founded in 1990 by Lance Sweeney and headquartered in Orange, California. The firm provides specialized irrigation system design, water management consulting, and construction observation services to landscape architecture firms and the broader development community. Its work spans commercial, retail, residential, institutional, public sector, golf course, public park, botanical garden, athletic facility, green roof, and campus projects. Internationally the firm has delivered projects in the United States, Saudi Arabia, Egypt, the United Arab Emirates, China, Taiwan, the Caribbean, South America, Mexico, and Central America.

Service delivery is built around a team of principals, certified water auditors, LEED-accredited professionals, EPA WaterSense Partners, ASIC professional members, and an ASLA Full Member, who work as integrated members of client design teams. The firm uses industry-standard AutoCAD and MicroStation drafting software alongside state-of-the-art irrigation control systems, alternative water sources, and environmentally sound materials. Its revenue model is project-based, quote-driven professional services billed to landscape architecture firms and developers, with delivery supported by regional offices in Orange and Murrieta (California), Round Rock (Texas), Fort Collins (Colorado), a new Los Angeles office established in 2024, and a Costa Rica satellite operated out of Texas. The firm reports having designed over 7,000 landscape irrigation projects since inception.

Name

Sweeney Associates

Legal name

Sweeney & Associates, Inc.

Website

https://sweeneyassoc.com

Company type

Private

Founded year

1990

Operating status

Operating

Short description

Sweeney & Associates is a privately held, founder-owned professional services firm founded in 1990 that provides specialized irrigation design, water management consulting, and construction observation services to landscape architecture firms across the United States and select international markets.

Ownership category

akta.pro rank

Product category

Landscape Architecture Services

NAICS

Architectural, Engineering, and Related Services (5413), Engineering Services (541330)

SIC

Services-Engineering, Accounting, Research, Management (8700)

akta.pro primary industry

Irrigation System Design & Engineering (AFACAFAA)

akta.pro secondary industries

Commercial & HOA Irrigation Services (Large-Scale Systems) (HSAIAEAJ), Water, Wastewater & Hydraulics Engineering Consulting (BPAHAIAD)

Keywords

• Professional irrigation design
• Landscape architecture services
• Water management consulting
• Irrigation construction observation
• Sustainable landscape design

Headquarters

HQ city

Orange

HQ country

United States

HQ region

North America

Offices5 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Irrigation Design Services: Professional services providing quality irrigation design services to landscape architecture firms. Includes design, construction observations, water management practices, and related consulting services delivered within project schedules and budgets.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

Sweeney & Associates, Inc. provides professional irrigation design, water management consulting, LEED coordination, and construction observation services for landscape architecture firms. Its work spans detailed water use estimates, master planning, written specifications, submittal reviews, and construction site observation for commercial, retail, residential, institutional, recreational, and public-sector landscape projects across the United States and internationally.

Product overview

Sweeney & Associates is a professional services firm offering specialized irrigation design services to landscape architecture firms across the United States and internationally. The company provides a single, unified service offering focused on water conservation through sound irrigation design, construction observations, and water management practices. Their core service includes coordination and design of large-scale irrigation systems, detailed water use estimates, written specifications, submittal reviews, and construction observations. Founded in 1990, the firm has designed over 7,000 landscape irrigation projects including commercial, retail, residential developments, golf courses, public parks, botanical gardens, athletic facilities, green roofs, college campuses, and schools.

Differentiator

Problem solved

Functional benefit

Products and services

• Irrigation Design Services Professional irrigation system design for landscape architecture firms, including coordination and design of large-scale irrigation systems, detailed water use estimates, master planning, written specifications, submittal reviews, and construction observations across commercial, retail, residential, golf, public park, and athletic facility projects.
• LEED Coordination Services LEED accreditation and coordination services for sustainable building and landscape projects, delivered through LEED-credentialed staff as part of the firm's broader irrigation design offering.
• Water Conservation and Management Consulting Water conservation and water management consulting for landscape projects, delivered by certified water auditors since 1991 through alternative water sources, sound materials selection, and efficient irrigation design practices.
• Construction Observation Services Construction observation services for irrigation projects, providing on-site oversight during installation to ensure irrigation systems are built per design intent and within project schedules and budgets.

Quantifiable outcome

• Over 7,000 landscape irrigation projects successfully completed

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Scale indicators3 records

Recent moves4 records

Expansion highlights5 records

Broad incumbents

• Tetra Tech: Consulting and engineering firm with leading water, environmental, and sustainable-infrastructure practices. Comparable as a broad incumbent whose water-resources and landscape-infrastructure groups overlap Sweeney's water-conservation design and master-planning services on public and institutional projects.
• Rain Bird Corporation: Leading global manufacturer of irrigation products, controllers, and central control systems with substantial design-services content. Comparable as the dominant upstream manufacturer whose design and specification support competes with Sweeney for influence over irrigation system layout on commercial projects.
• SiteOne Landscape Supply: Largest US distributor of irrigation, landscape, and outdoor living products to contractors and landscape architects. Comparable because SiteOne increasingly bundles design support and product specification around its irrigation supply, competing with Sweeney at the specification step on landscape-architect projects.
• Hunter Industries: Privately held manufacturer of irrigation, outdoor lighting, and landscape technology products with engineering and design-services resources. Comparable as a manufacturer whose specification and design-support teams overlap the irrigation design work Sweeney performs for landscape architects.
• The Toro Company: Diversified outdoor equipment manufacturer with a substantial irrigation business serving golf, commercial, and residential markets. Comparable as a manufacturer whose design and water-management expertise positions it alongside Sweeney on golf and large commercial irrigation projects.
• Lindsay Corporation: Public manufacturer of irrigation infrastructure including Zimmatic center pivots and FieldNET controls serving agricultural and large-landscape customers. Comparable as a technology-led incumbent whose smart-irrigation and remote-management products create specification-side competition for Sweeney on larger projects.
• Stantec: Global engineering, architecture, and environmental services firm with a substantial water and landscape architecture practice. Compares as a larger incumbent that competes with Sweeney on institutional and public-sector irrigation and water-management work, though Stantec's scope is much broader and includes construction.

Direct peers

• SWA Group: Large landscape architecture and urban design firm whose project portfolio frequently requires integrated irrigation design for the same commercial, campus, and park clients Sweeney serves. Compares as a top-tier design firm that delivers irrigation as part of a broader scope, whereas Sweeney is a specialist irrigation design embed on those teams.
• LandDesign: Multi-disciplinary landscape architecture, civil engineering, and urban design firm with a national US footprint across the same commercial, mixed-use, and institutional markets as Sweeney. Comparable because it embeds irrigation design within landscape-architect-led projects on campuses, parks, and master-planned communities.

Regional players

• Ewing Irrigation & Landscape Supply: Large regional distributor of irrigation, landscape, and water-management products across the western and southwestern US — geographies that overlap Sweeney's strongest markets. Comparable as a Western US specialty distributor that increasingly bundles design and specification support for landscape architects similar to Sweeney's client base.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/sweeney-associates

Compliance6 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

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 Sweeney Associates