Company lists · Data refreshed November 2026

Top 25 Basement excavation consultants worldwide

RevenueBase identified 808 company matches for basement excavation consultants worldwide as of November 2026 and tracks 4,581 professional contacts across them, including 1,030 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for basement excavation consultants worldwide, 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 November 6, 2026. Country and city lists for basement excavation consultants follow the table.

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 Nov 6, 2026 How this list was built
808Companies
4,581Contacts tracked
1,030Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest basement excavation consultants worldwide

Ranked by team size
Top 25 of 808 company matches for basement excavation consultants worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchDartford, United KingdomHQ recorded Nov 6, 20261,001-5,000216 contacts →

Exact match

“With two main specialist areas - structures and geotechnical, the Expanded Group provides a total capability in the early construction phases of major projects.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchLansing, MI, United StatesHQ recorded Nov 6, 202651-200107 contacts →

Exact match

“Ayers Basement Systems is a family-owned, veteran-owned, and locally operated basement waterproofing and foundation repair contractor serving Michigan and Northern Indiana since…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchEnglewood, IL, United StatesHQ recorded Nov 6, 202651-20093 contacts →

Exact match

“Creating Space Underground®” has been our mission and our passion for 25 years.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchTwinsburg, OH, United StatesHQ recorded Nov 6, 20265,001-10,00091 contacts →

Exact match

“Groundworks, formerly Ohio Basement Authority, was founded on a mission to protect, repair, and improve our customers’ greatest asset, their home.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchCollinsville, IL, United StatesHQ recorded Nov 6, 202651-20083 contacts →

Exact match

“In 1986, Rick and Anna Lee Woods, with a partner, started a waterproofing company called Basement DeWatering Systems Metro-East, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchTempe, AZ, United StatesHQ recorded Nov 6, 202651-20063 contacts →

Exact match

“Residential Projects – Recommendations for subdivision home foundations (individual custom lots up to lots), apartments, and condominiums from 1 to 25 stories with and without…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchRochester, ND, United StatesHQ recorded Nov 6, 202651-20054 contacts →

Exact match

“When it comes to water in your basement or a faulty foundation, you need an expert to ensure the damage is reversed and prevented from occurring in the future.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchMississauga, BC, CanadaHQ recorded Nov 6, 202611-5053 contacts →

Exact match

“Isherwood is a consulting firm specializing in geostructural, geotechnical, and foundation engineering for new and restoration projects in Toronto, Vancouver, and throughout…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchSaint-hubert, QC, CanadaHQ recorded Nov 6, 202651-20050 contacts →

Exact match

“Pour tous les travaux complexes de réparation de fondation, Bisson Expert est le partenaire de confiance qu’il vous faut.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchKuala Lumpur, MalaysiaHQ recorded Nov 6, 202651-20047 contacts →

Exact match

“Geopancar Sdn Bhd is a contractor specialising in foundation and basement construction.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchBrampton, ON, CanadaHQ recorded Nov 6, 202651-20044 contacts →

Exact match

“With over 25 years experience, Metro Infrastructure works to provide construction services across Toronto, Peel and Halton regions for construction companies, public works…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchFinksburg, United StatesHQ recorded Nov 6, 2026201-50042 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchBogota, ColombiaHQ recorded Nov 6, 2026501-1,00041 contacts →

Exact match

“Proveedor de soluciones integrales para sótanos de edificios y construcción geotécnica, utilizando los más altos estándares del sector de la construcción a nivel mundial.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchSchramberg, GermanyHQ recorded Nov 6, 2026201-50036 contacts →

Exact match

“Unsere Firma, die Glatthaar Keller GmbH & Co.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchNacka, SwedenHQ recorded Nov 6, 202611-5034 contacts →

Exact match

“Välkommen till GeoMind, ett av Sveriges ledande konsultföretag inom geoteknik och grundläggning.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchBeringen, BelgiumHQ recorded Nov 6, 202611-5034 contacts →

Exact match

“CVR is een onderneming actief in de bouwsector met een doorgedreven specialisatie in funderingstechnieken en beschoeide bouwputten.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchFlorence, AL, United StatesHQ recorded Nov 6, 202611-5032 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchCalgary, AB, CanadaHQ recorded Nov 6, 202651-20029 contacts →

Exact match

“Trust Prattco Excavating, a family owned and operated company, for all your excavation needs in Calgary and the surrounding area!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchMumbai, IndiaHQ recorded Nov 6, 202611-5029 contacts →

Exact match

“We are a geotechnical consulting firm providing optimized foundation, ground improvement and excavation shoring solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchWarwick Township, ON, CanadaHQ recorded Nov 6, 202651-20028 contacts →

Exact match

“Since 1973, Birnam Excavating Ltd.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchLondon, United KingdomHQ recorded Nov 6, 202651-20025 contacts →

Exact match

“London Basement are the capital’s leading specialist in basement excavation, basement conversions and basement construction having completed over 1,200 projects.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchNiterói, BrazilHQ recorded Nov 6, 202611-5025 contacts →

Exact match

“A SIGMA1 Consultoria & Projetos foi criada para atender à crescente demanda por Projetos Estruturais e Avaliação Técnica de Projetos (ATP) desafiadores na indústria da construção…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchRomanshorn, SwitzerlandHQ recorded Nov 6, 202651-20024 contacts →

Exact match

“Seit mehr als 45 Jahren haben sich unsere Mitarbeitenden an den Standorten Romanshorn, Zürich und St.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchBayswater North, AustraliaHQ recorded Nov 6, 202651-20024 contacts →

Exact match

“Earthlift Excavations is a Melbourne based company, first established in 1968.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchMclean, VA, United StatesHQ recorded Nov 6, 202651-20023 contacts →

Exact match

“Clark Foundations delivers advanced engineering and construction solutions for the most sophisticated excavation support and deep foundations systems.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 808 basement excavation consultants worldwide

See the full list, filter by size, metro and specialty, and access 1,030 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Basement excavation consultants worldwide at a glance

As of Nov 6, 2026
22.5%Verified-email coverage
5.7Average contacts per company
1-10Median size (employees)
2.0%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
421
11-50
280
51-200
76
201-500
5
501-1,000
1
1,001-5,000
1
5,001-10,000
3

Email recency is reported on each country list linked below.

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.
Coverage
Every country. Country and city lists for basement excavation consultants are linked below.
What qualifies
Company records worldwide whose business descriptions match “basement excavation consultants” 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. 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 1,030 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 November 6, 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.

Basement excavation consultants by location

3 lists · largest first

Every Basement excavation consultants list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 “basement excavation consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many basement excavation consultants are there worldwide?

RevenueBase identified 808 company matches for basement excavation consultants worldwide as of November 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?

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

Which country has the most basement excavation consultants?

The United States leads with 381 companies, followed by Canada (150) and the United Kingdom (44). Every basement excavation consultants list by country and city is linked on this page.

Which city has the most basement excavation consultants?

London leads with 16 company records, followed by Quebec (8) and Calgary (7).

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 1,030 professional contacts with verified work emails tracked across these 808 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 November 6, 2026.

Ready to reach these companies? Verified emails and direct dials for all 808 basement excavation consultants worldwide. Start with a free account, no credit card.

Download this list →

Related lists

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.