Company lists · Data refreshed October 2026

Top 25 Landscape engineering firms based in Pittsburgh, United States

Name: Landscape engineering firms based in Pittsburgh, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 17, 2026 54 companies tracked

RevenueBase identified 54 company matches for landscape engineering firms associated with Pittsburgh, United States as of October 2026 and tracks 1,016 professional contacts across them, including 532 with verified work emails. Across the United States, New York is the largest hub for this category (197 companies); Pittsburgh has 54.

This list covers company matches for landscape engineering firms associated with Pittsburgh, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 17, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Oct 17, 2026 How this list was built

54Companies

1,016Contacts tracked

532Verified emails

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The 25 largest landscape engineering firms based in Pittsburgh, United States

Ranked by team size

Top 25 of 54 company matches for landscape engineering firms based in Pittsburgh, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 17, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Gateway Engineers	Exact match	Pittsburgh, PA, United StatesHQ recorded Oct 17, 2026	201-500	195 contacts →
	Exact match “Gateway Engineers is a full-service civil engineering firm headquartered in Pittsburgh, PA.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
2	Rizzo International	Exact match	Pittsburgh, PA, United StatesHQ recorded Oct 17, 2026	51-200	175 contacts →
	Exact match “RIZZO International, Inc.(RIZZO) is a global engineering and consulting firm headquartered in Pittsburgh, Pennsylvania US.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
3	Strada Design With People In Mind	Exact match	Pittsburgh, PA, United StatesHQ recorded Oct 17, 2026	51-200	85 contacts →
	Exact match “Some companies choose to name their firms after their principals, but we decided to name our firm after one of our favorite things – streets.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
4	Mackin Engineers & Consultants	Exact match	Pittsburgh, PA, United StatesHQ recorded Oct 17, 2026	51-200	61 contacts →
	Exact match “Founded in 1960 by Italo (Ody) Mackin, Mackin Engineers & Consultants has proudly served clients across Pennsylvania and the surrounding Tri-State area for more than 65 years.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
5	LLI Engineering	Exact match	Pittsburgh, PA, United StatesHQ recorded Oct 17, 2026	11-50	54 contacts →
	Exact match “Founded in 1910 in Pittsburgh, Pennsylvania, LLI Engineering a veteran owned small business, specializes in commercial, critical facilities, infrastructure upgrades, Green…” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
6	A&a Consultants, INC	Exact match	Pittsburgh, PA, United StatesHQ recorded Oct 17, 2026	11-50	41 contacts →
	Exact match “About A&A Consultants A&A provides comprehensive engineering services to private firms, governmental agencies and large corporations.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
7	Sci-Tek Consultants, INC	Exact match	Pittsburgh, PA, United StatesHQ recorded Oct 17, 2026	11-50	38 contacts →
	Exact match “COMPANY DESCRIPTION Sci-Tek Consultants, Inc.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
8	D'appolonia Engineering	Exact match	Pittsburgh, PA, United StatesHQ recorded Oct 17, 2026	11-50	35 contacts →
	Exact match “Founded in 1956, D'APPOLONIA has grown to be an industry leader in providing consulting engineering services.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
9	Rothschild Doyno Collaborative	Exact match	Pittsburgh, PA, United StatesHQ recorded Oct 17, 2026	11-50	31 contacts →
	Exact match “We are an ARCHITECTURE and URBAN DESIGN firm committed to a COLLABORATIVE process with our clients that increases the VALUE of the built environment through MEANINGFUL design…” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
10	Eichenlaub INC	Exact match	Pittsburgh, PA, United StatesHQ recorded Oct 17, 2026	51-200	30 contacts →
	Exact match “We design, build, and maintain unique, customized outside projects; from flower pots to driveways.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
11	Cosmos Technologies, INC	Exact match	Pittsburgh, PA, United StatesHQ recorded Oct 17, 2026	11-50	25 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
12	Urban Design Associates UDA	Exact match	Pittsburgh, PA, United StatesHQ recorded Oct 17, 2026	11-50	22 contacts →
	Exact match “Since 1964, Urban Design Associates,(UDA) has been innovating, testing, and evolving the practice of urban design.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
13	Pashek MTR	Exact match	Pittsburgh, PA, United StatesHQ recorded Oct 17, 2026	11-50	20 contacts →
	Exact match “Pashek + MTR is an award-winning landscape architecture and community planning firm whose mission is to improve the environment and the communities we serve by connecting people…” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
14	Mossarchitects	Exact match	Pittsburgh, PA, United StatesHQ recorded Oct 17, 2026	11-50	18 contacts →
	Exact match “mossArchitects is a Pittsburgh-based architectural firm founded in 2006 by Andrew Moss with the intent to develop responsive, artful, expressive design solutions.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
15	Tower Engineering, INC	Exact match	Pittsburgh, PA, United StatesHQ recorded Oct 17, 2026	11-50	15 contacts →
	Exact match “Providing the systems you need, the information you want, and the satisfaction you deserve.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
16	Wooster And Associates	Exact match	Pittsburgh, PA, United StatesHQ recorded Oct 17, 2026	11-50	13 contacts →
	Exact match “Wooster has been at the forefront of the traffic engineering industry in the tri-state area for more than 50 years.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
17	Indovina Associates Architects LLC	Exact match	Pittsburgh, PA, United StatesHQ recorded Oct 17, 2026	11-50	13 contacts →
	Exact match “Indovina Associates Architects is a multi-disciplined Design Firm of design professionals and supporting staff.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
18	Collective Efforts, LLC	Exact match	Pittsburgh, PA, United StatesHQ recorded Oct 17, 2026	11-50	12 contacts →
	Exact match “Collective Efforts, LLC is a women-owned, civil and environmental engineering consulting firm.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
19	LBA Landscape Architecture	Exact match	Pittsburgh, PA, United StatesHQ recorded Oct 17, 2026	1-10	11 contacts →
	Exact match “LBA Landscape Architecture is a landscape architecture, urban design, and land planning firm based in Pittsburgh, Pennsylvania.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
20	Environmental Planning & Design	Exact match	Pittsburgh, PA, United StatesHQ recorded Oct 17, 2026	11-50	10 contacts →
	Exact match “Environmental Planning & Design, LLC is an integrated landscape architecture, community planning, and urban design firm based in Pittsburgh, Pennsylvania.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
21	A&n Lawn Service INC	Exact match	Pittsburgh, PA, United StatesHQ recorded Oct 17, 2026	11-50	10 contacts →
	Exact match “We will point your landscaping project in the right direction Landscaping Hardscaping Maintenance and Commercial Snow Removal A&N Lawn Service Inc.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
22	Merritt Chase	Exact match	Pittsburgh, PA, United StatesHQ recorded Oct 17, 2026	1-10	7 contacts →
	Exact match “Merritt Chase is a landscape architecture firm dedicated to creating public spaces that connect people, culture, and ecology across Middle America.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
23	Enginehouse	Exact match	Pittsburgh, PA, United StatesHQ recorded Oct 17, 2026	11-50	7 contacts →
	Exact match “EngineHouse is a group of designers, builders, and makers working toward a sustainable and enduring built environment.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
24	Pfaffmann Associates	Exact match	Pittsburgh, PA, United StatesHQ recorded Oct 17, 2026	1-10	7 contacts →
	Exact match “Pfaffmann + Associates innovates in broad areas of architecture, urban design and preservation.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
25	Earth, INC	Exact match	Pittsburgh, PA, United StatesHQ recorded Oct 17, 2026	11-50	7 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “landscape engineering firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 54 landscape engineering firms based in Pittsburgh, United States

See the full list, filter by size, metro and specialty, and access 532 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Landscape engineering firms based in Pittsburgh, United States at a glance

As of Oct 17, 2026

52.4%Verified-email coverage

18.8Average contacts per company

11-50Median size (employees)

Oct 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

Email recency for this list is measured across the whole United States list rather than for Pittsburgh, so it is reported there. Company counts and contact totals on this page are exact for Pittsburgh, over 54 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Pittsburgh, United States whose business descriptions match “landscape engineering firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every displayed company carries at least one verified work email. RevenueBase tracks 532 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on October 17, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Landscape engineering firms by metro in the United States

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “landscape engineering firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many landscape engineering firms are there based in Pittsburgh, United States?

RevenueBase identified 54 company matches for landscape engineering firms associated with Pittsburgh, United States as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Gateway Engineers tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most landscape engineering firms?

New York leads the United States with 197 company records, followed by Houston (151) and Austin (147). Pittsburgh has 54.

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 532 professional contacts with verified work emails tracked across these 54 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 17, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.