Company lists · Data refreshed September 2026

Top 25 Transit authority engineering services based in New York, United States

Name: Transit authority engineering services based in New York, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 75 companies tracked

RevenueBase identified 75 transit authority engineering services headquartered in New York, United States as of September 2026 and tracks 16,200 professional contacts across them, including 9,027 with verified work emails. Houston is the largest hub.

This list covers transit authority engineering services headquartered in New York, United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 19, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 19, 2026 86% judged on-target in blind review

75Companies

16,200Contacts tracked

9,027Verified emails

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The 25 largest transit authority engineering services based in New York, United States

Ranked by team size

Top 25 of 75 transit authority engineering services based in New York, United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to transit authority engineering services: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	WSP In The U.S	Indirect evidence	New York, NY, United StatesHQ checked Sep 19, 2026	10001+	9,318 contacts →
	Indirect evidence “What if you could shape built and natural environments – and the future of those that use them?” Source: RevenueBase Database · checked Sep 19, 2026
2	STV	Indirect evidence	New York, NY, United StatesHQ checked Sep 19, 2026	1,001-5,000	3,556 contacts →
	Indirect evidence “STV offers professional services for the infrastructure that powers our lives.” Source: RevenueBase Database · checked Sep 19, 2026
3	H&h	Partial evidence	New York, NY, United StatesHQ checked Sep 19, 2026	501-1,000	530 contacts →
	Partial evidence “With more than 139 years of experience, H&H is a trusted, full-service infrastructure engineering firm delivering complex, forward-looking solutions that advance our clients’…” Source: RevenueBase Database · checked Sep 19, 2026
4	CSA Group, Architects And Engineers	Indirect evidence	New York, NY, United StatesHQ checked Sep 19, 2026	501-1,000	448 contacts →
	Indirect evidence “CSA Group is a full-service, A/E/Env, PM/CM & Inspections, and Emergency Management consulting firm.” Source: RevenueBase Database · checked Sep 19, 2026
5	Entech	Partial evidence	New York, NY, United StatesHQ checked Sep 19, 2026	201-500	282 contacts →
	Partial evidence “EnTech Engineering, PC is a multidisciplinary, WBE-certified engineering and construction management firm devoted to delivering best-in-class design and construction support…” Source: RevenueBase Database · checked Sep 19, 2026
6	HAKS	Indirect evidence	New York, NY, United StatesHQ checked Sep 19, 2026	501-1,000	259 contacts →
	Indirect evidence “From humble beginnings in 1991 as a 2-person company in New York City, we have now grown into a 500-person strong consulting firm, with 15 regional offices in the US (and India).” Source: RevenueBase Database · checked Sep 19, 2026
7	Eng-Wong, Taub & Associates	Indirect evidence	New York, NY, United StatesHQ checked Sep 19, 2026	n/a	231 contacts →
	Indirect evidence “This month marks a new and exciting beginning for Eng-Wong, Taub & Associates.” Source: RevenueBase Database · checked Sep 19, 2026
8	Loring Consulting Engineers, INC	Partial evidence	New York, NY, United StatesHQ checked Sep 19, 2026	201-500	200 contacts →
	Partial evidence “Since it's founding in 1956, Loring Consulting Engineers, Inc.(Loring), a full-service consulting engineering firm with offices in Washington-DC, Gaithersburg-MD, Durham-NC, New…” Source: RevenueBase Database · checked Sep 19, 2026
9	Systra USA	Indirect evidence	New York, NY, United StatesHQ checked Sep 19, 2026	51-200	196 contacts →
	Indirect evidence “SYSTRA USA, Inc.” Source: RevenueBase Database · checked Sep 19, 2026
10	KC Engineering And Land Surveying, P.C	Partial evidence	New York, NY, United StatesHQ checked Sep 19, 2026	51-200	120 contacts →
	Partial evidence “KC is a diversified, multi-disciplined consulting engineering firm.” Source: RevenueBase Database · checked Sep 19, 2026
11	MP Engineers Architects	Partial evidence	New York, NY, United StatesHQ checked Sep 19, 2026	51-200	110 contacts →
	Partial evidence “MP Engineers + Architects was founded in 2006 as a multi-disciplinary consulting firm, offering expertise in architecture, structural/civil engineering, construction…” Source: RevenueBase Database · checked Sep 19, 2026
12	Ammann & Whitney	Partial evidence	New York, NY, United StatesHQ checked Sep 19, 2026	201-500	101 contacts →
	Partial evidence “Ammann & Whitney is a full service engineering, architecture and construction support services firm serving public and private sector clients worldwide.” Source: RevenueBase Database · checked Sep 19, 2026
13	SI Engineering, P.C	Strong evidence	New York, NY, United StatesHQ checked Sep 19, 2026	51-200	95 contacts →
	Strong evidence “SI Engineering, P.C.(SIE) is a rapidly growing consulting engineering firm specializing in civil, structural, electrical/lighting, and transportation engineering; bridge and…” Source: RevenueBase Database · checked Sep 19, 2026
14	DM Enterprises	Partial evidence	New York, NY, United StatesHQ checked Sep 19, 2026	51-200	85 contacts →
	Partial evidence “DME is a leading Professional Services firm specializing in Project Controls, Program Management, Engineering and Construction Management services for Water & Wastewater…” Source: RevenueBase Database · checked Sep 19, 2026
15	Huntler Management	Indirect evidence	New York, NY, United StatesHQ checked Sep 19, 2026	51-200	42 contacts →
	Indirect evidence “HUNTLER is MBE certified management consulting and advisory firm.” Source: RevenueBase Database · checked Sep 19, 2026
16	BFJ Planning	Indirect evidence	New York, NY, United StatesHQ checked Sep 19, 2026	11-50	39 contacts →
	Indirect evidence “BFJ Planning is a consulting firm providing professional expertise in planning and related fields since its establishment in 1980.” Source: RevenueBase Database · checked Sep 19, 2026
17	Infra Tech Engineering, LLC	Partial evidence	New York, NY, United StatesHQ checked Sep 19, 2026	51-200	32 contacts →
	Partial evidence “Since the early 1980’s, Infra Tech Engineering (ITE) has served governments, communities and private industry by providing analytical, planning, engineering, construction and…” Source: RevenueBase Database · checked Sep 19, 2026
18	Fiskaa, LLC	Partial evidence	New York, NY, United StatesHQ checked Sep 19, 2026	11-50	19 contacts →
	Partial evidence “Founded in 1997 by Thomas Fiskaa, Steve Papadakis, and Eric Martinsen, Fiskaa Engineering continues to deliver high-quality engineering and consulting services nation-wide.” Source: RevenueBase Database · checked Sep 19, 2026
19	Sigma7	Partial evidence	New York, NY, United StatesHQ checked Sep 19, 2026	11-50	18 contacts →
	Partial evidence “SIGMA7 design group is a full service Architectural & Engineering firm providing consulting, strategic planning, design and project management services.” Source: RevenueBase Database · checked Sep 19, 2026
20	Integrated Strategic Resources, LLC	Indirect evidence	New York, NY, United StatesHQ checked Sep 19, 2026	11-50	14 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
21	Interactive Elements Incorporated	Strong evidence	New York, United StatesHQ checked Sep 19, 2026	51-200	12 contacts →
	Strong evidence “ABOUT US Interactive Elements is a public transportation consulting firm with active practices in planning, design, operations (including safety and security), engineering, and…” Source: RevenueBase Database · checked Sep 19, 2026
22	Derive Engineers	Partial evidence	New York, NY, United StatesHQ checked Sep 19, 2026	11-50	11 contacts →
	Partial evidence “Derive Engineers is a multidisciplinary consulting engineering firm of skilled, passionate and experienced people.” Source: RevenueBase Database · checked Sep 19, 2026
23	SAM Schwartz	Strong evidence	New York, NY, United StatesHQ checked Sep 19, 2026	51-200	10 contacts →
	Strong evidence “Sam Schwartz is a leading planning, engineering and consulting firm known for its ability to solve highly complex traffic and transportation challenges for government…” Source: RevenueBase Database · checked Sep 19, 2026
24	NEW York House Of Engineers	Partial evidence	New York, NY, United StatesHQ checked Sep 19, 2026	11-50	10 contacts →
	Partial evidence “NYHE is an independent firm of consultants, engineers, designers, Cost Professionals, and planners that offers an extensive range of expert services in engineering project…” Source: RevenueBase Database · checked Sep 19, 2026
25	Mirabal Engineering	Indirect evidence	New York, NY, United StatesHQ checked Sep 19, 2026	11-50	9 contacts →
	Indirect evidence “At Mirabal⁺ we approach projects following a simple motto: defined goals, team commitment, and plan of action.” Source: RevenueBase Database · checked Sep 19, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: transit authority engineering services. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names transit authority engineering services.
Partial evidence: Its own public description names part of transit authority engineering services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name transit authority engineering services. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 75 transit authority engineering services based in New York, United States

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Transit authority engineering services based in New York, United States at a glance

As of Sep 19, 2026

55.7%Verified-email coverage

216.0Average contacts per company

11-50Median size (employees)

128.0%Largest-city concentration · Houston

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

Email recency for this list is measured across the whole United States list rather than for New York, so it is reported there. Company counts and contact totals on this page are exact for New York, over 75 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among transit authority engineering services, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in New York, United States whose own description of what they do matches “transit authority engineering services”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names transit authority engineering services), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among transit authority engineering services, and records with no verified work email. Companies headquartered outside New York are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 9,027 across the full list. 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 September 19, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Transit authority engineering services by metro in the United States

Transit authority engineering services in Houston96
Transit authority engineering services in New York75
Transit authority engineering services in Chicago53
Transit authority engineering services in Dallas43
Transit authority engineering services in Miami39
Transit authority engineering services in Los Angeles37
Transit authority engineering services in Austin34
Transit authority engineering services in Tampa29
Transit authority engineering services in Atlanta27
Transit authority engineering services in Irvine26

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names transit authority engineering services, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many transit authority engineering services are there based in New York, United States?

RevenueBase identified 75 transit authority engineering services headquartered in New York, United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

WSP In The U.S, headquartered in New York, tops this list with the largest team on record.

Which city has the most transit authority engineering services?

Houston leads with 96 headquartered companies, followed by New York (75) and Chicago (53).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 9,027 verified decision-maker contacts tracked across these 75 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 19, 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 Smart Search, 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.