Company lists · Data refreshed November 2026

Top 25 Underground seal installation services worldwide

RevenueBase identified 233 company matches for underground seal installation services worldwide as of November 2026 and tracks 2,137 professional contacts across them, including 840 with verified work emails. The United States is the largest market and Al Khobar the largest hub.

This list covers company matches for underground seal installation services 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 underground seal installation services 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
233Companies
2,137Contacts tracked
840Verified emails
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The 25 largest underground seal installation services worldwide

Ranked by team size
Top 25 of 233 company matches for underground seal installation services 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 matchKarlskrona, SwedenHQ recorded Nov 6, 20261,001-5,000467 contacts →

Exact match

“Roxtec cable and pipe seals protect life and assets.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchHermaringen, GermanyHQ recorded Nov 6, 2026201-500137 contacts →

Exact match

“Hauff-Technik is a leading manufacturer of sealing systems for cables, pipes, and building entries – serving applications in private residential construction as well as in…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchWheat Ridge, CO, United StatesHQ recorded Nov 6, 2026201-500125 contacts →

Exact match

“For over 40 years, GPT Industries has stood as a pillar of safety, reliability, and innovation within the pipeline industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchBradford, United KingdomHQ recorded Nov 6, 202651-20096 contacts →

Exact match

“KLINGER is the world's leading sealing solutions and services provider.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchSpring, TX, United StatesHQ recorded Nov 6, 20261,001-5,00072 contacts →

Exact match

“Hultec is the world's largest manufacturer of integrated and fixed pipe seal solutions for pipes and fittings in both pressure and non-pressure applications.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchMoosseedorf, SwitzerlandHQ recorded Nov 6, 2026501-1,00064 contacts →

Exact match

“WATERPROOFING Our specialized division for all kind of sealing ope­ra­ti­ons in under­ground struc­tures against pres­su­rized and non-pres­su­rized water.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchGeldermalsen, NetherlandsHQ recorded Nov 6, 202651-20046 contacts →

Exact match

“Your network is only as strong as its weakest seal.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchVienna, AustriaHQ recorded Nov 6, 2026501-1,00038 contacts →

Exact match

“Die IAT GmbH steht für innovative Abdichtungstechnologien und investiert laufend in die technische Expertise und Ausbildung ihrer rund 500 Spezialistinnen und Spezialisten.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchWaukesha, WI, United StatesHQ recorded Nov 6, 20261-1024 contacts →

Exact match

“Cretex Specialty Products, based in Waukesha, WI, is a leading provider of solutions for the construction, rehabilitation, and repair of manholes used in sewer, stormwater, and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchTredegar, United KingdomHQ recorded Nov 6, 202611-5022 contacts →

Exact match

“We are experts in structural and basement waterproofing and ground gas protection system solutions, specialising in below ground structures and podium decks.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchNorthumberland, United KingdomHQ recorded Nov 6, 202611-5019 contacts →

Exact match

“CSD Sealing System (UK) have specialised in the supply and installation of technically advanced cable transits, flexible pipe penetrations and RISE and Nofirno cable duct seals…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchSkå, SwedenHQ recorded Nov 6, 202611-5019 contacts →

Exact match

“Stabtech är ett entreprenadföretag som specialiserar sig på tätnings- och grundförstärkningsarbeten med en metod som kallas för expansionsinjektering.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchLaksevåg, NorwayHQ recorded Nov 6, 202651-20018 contacts →

Exact match

“W.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchWyckoff, NY, United StatesHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“LJS Waterproofing LLC - Seawall Repair, Chemical Grout Injection, Leak Seal, Soil Stabilization, Slab Lifting, Void Fill, Concrete Repair and Restoration…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchBirr, SwitzerlandHQ recorded Nov 6, 202611-5014 contacts →

Exact match

“Seit 1964 sind wir Profis im Abdichten.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchTaverny, FranceHQ recorded Nov 6, 202611-5013 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchWidnau, SwitzerlandHQ recorded Nov 6, 202651-20013 contacts →

Exact match

“As a construction company, waprotec ag is your reliable partner in all areas of execution and implementation of plans drawn up by planners specialising in the sealing of buildings…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchVästerås, SwedenHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“PM Fog & Brandteknik erbjuder professionell fogning för stora och små byggprojekt, fasadfogning & brandfogning.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchMölndal, SwedenHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“Det finns en mängd olika typer av fogningsarbeten.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchPonta Grossa, BrazilHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“Nós da Imper7 Impermeabilizações, trabalhamos executando e fornecendo materiais para serviços de:* IMPERMEABILIZAÇÕES GERAIS * TRATAMENTOS DE INFILTRAÇÕES NO CONCRETO * INJEÇÕES…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchOmaha, NE, United StatesHQ recorded Nov 6, 202611-5010 contacts →

Exact match

“We are a sealant, waterproofing and restoration contractor.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchUnited StatesHQ recorded Nov 6, 202611-509 contacts →

Exact match

“United Professional Caulking & Restoration, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact match178 Siganto Drive Helensvale, AustraliaHQ recorded Nov 6, 202651-2009 contacts →

Exact match

“At Stop & Seal, we specialise in tailored waterproofing solutions for commercial and remedial works across Australia and worldwide.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchBückeburg, GermanyHQ recorded Nov 6, 20261-109 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchWilmington, NC, United StatesHQ recorded Nov 6, 202611-509 contacts →

Exact match

“Founded in 2011, PipeView Technologies specializes in helping private and public sector clients maintain their underground infrastructure.”

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

Showing 25 of 233 underground seal installation services worldwide

See the full list, filter by size, metro and specialty, and access 840 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Underground seal installation services worldwide at a glance

As of Nov 6, 2026
39.3%Verified-email coverage
9.2Average contacts per company
1-10Median size (employees)
0.9%Largest-city concentration · Al Khobar
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
115
11-50
79
51-200
20
201-500
5
501-1,000
4
1,001-5,000
2

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 underground seal installation services are linked below.
What qualifies
Company records worldwide whose business descriptions match “underground seal installation services” 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 840 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.

Underground seal installation services by location

1 lists · largest first

Every Underground seal installation services 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 “underground seal installation services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many underground seal installation services are there worldwide?

RevenueBase identified 233 company matches for underground seal installation services 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?

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

Which country has the most underground seal installation services?

The United States leads with 44 companies. Every underground seal installation services list by country and city is linked on this page.

Which city has the most underground seal installation services?

Al Khobar leads with 2 company records, followed by Berlin (2) and Ew (2).

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 840 professional contacts with verified work emails tracked across these 233 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.

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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.