Company lists · Data refreshed September 2026

Top 25 Web monitoring services worldwide

RevenueBase identified 409 web monitoring services worldwide as of September 2026 and tracks 13,640 professional contacts across them, including 6,953 with verified work emails. The United States is the largest market and London the largest hub.

This list covers web monitoring services worldwide, 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 22, 2026. Country and city lists for web monitoring services follow the table.

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 22, 2026 86% judged on-target in blind review
409Companies
13,640Contacts tracked
6,953Verified emails
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The 25 largest web monitoring services worldwide

Ranked by team size
Top 25 of 409 web monitoring services worldwide, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to web monitoring 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceNew York, NY, United StatesHQ checked Sep 22, 20261,001-5,0009,298 contacts →

Partial evidence

“Datadog is the essential monitoring platform for cloud applications.”

Source: RevenueBase Database · checked Sep 22, 2026
2Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 22, 20261,001-5,000933 contacts →

Indirect evidence

“Cisco ThousandEyes empowers organizations to assure every digital experience across every network, everywhere, every time.”

Source: RevenueBase Database · checked Sep 22, 2026
3Indirect evidenceSanta Clara, CA, United StatesHQ checked Sep 22, 2026501-1,000456 contacts →

Indirect evidence

“Cavisson Systems Inc, having its headquarter in Santa Clara, CA (USA), is a leading provider of performance intelligence platform that ensures exceptional customer experience and…”

Source: RevenueBase Database · checked Sep 22, 2026
4Indirect evidenceUnited StatesHQ checked Sep 22, 2026n/a455 contacts →

Indirect evidence

“Track everything that matters about your website.”

Source: RevenueBase Database · checked Sep 22, 2026
5Indirect evidenceNew York, NY, United StatesHQ checked Sep 22, 2026201-500244 contacts →

Indirect evidence

“Catchpoint is the Internet Resilience Company.”

Source: RevenueBase Database · checked Sep 22, 2026
6Partial evidenceParis, FranceHQ checked Sep 22, 202651-200158 contacts →

Partial evidence

“A leader in digital performance monitoring, Centreon has been developing a unique expertise in monitoring infrastructure, networks, and digital user experience since 2005.”

Source: RevenueBase Database · checked Sep 22, 2026
7Indirect evidenceSaint Paul, MN, United StatesHQ checked Sep 22, 202611-5094 contacts →

Indirect evidence

“We monitor the world’s IT infrastructures like no one else: nearly any device, anytime, anywhere, with one dashboard of results that give you certainty about your IT network and…”

Source: RevenueBase Database · checked Sep 22, 2026
8Indirect evidenceAntwerpen, BelgiumHQ checked Sep 22, 202611-5074 contacts →

Indirect evidence

“We offer Uptime-as-a-service.”

Source: RevenueBase Database · checked Sep 22, 2026
9Indirect evidence港区赤坂, JapanHQ checked Sep 22, 202651-20065 contacts →

Indirect evidence

“New Relic New Relic2008New Relic https://newrelic.com/jp New Relic New Relic https://newrelic.com/jp/platform AirBnBGitHubFortune 201811 https://newrelic.co.jp/about/customers…”

Source: RevenueBase Database · checked Sep 22, 2026
10Partial evidenceMenifee, CA, United StatesHQ checked Sep 22, 20265,001-10,00060 contacts →

Partial evidence

“We've offered holistic website security solutions since 2008 including malware removal, malware monitoring and website protection services.”

Source: RevenueBase Database · checked Sep 22, 2026
11Indirect evidenceChennai, IndiaHQ checked Sep 22, 202611-5054 contacts →

Indirect evidence

“Atatus is a next-gen observability for modern systems, helping engineering teams ship faster, troubleshoot smarter, and deliver better user experiences.”

Source: RevenueBase Database · checked Sep 22, 2026
12Partial evidenceWarszawa, PolandHQ checked Sep 22, 202651-20049 contacts →

Partial evidence

“EMCA jest wiodącym dostawcą rozwiązań w zakresie monitoringu infrastruktury informatycznej i bezpieczeństwa sieci.”

Source: RevenueBase Database · checked Sep 22, 2026
13Partial evidenceLondon, United KingdomHQ checked Sep 22, 202611-5047 contacts →

Partial evidence

“We develop monitoring tools that make the Internet a safer place for hundreds of international brands.”

Source: RevenueBase Database · checked Sep 22, 2026
14Indirect evidenceUnited StatesHQ checked Sep 22, 202611-5038 contacts →

Indirect evidence

“Better Stack is a radically better observability stack.”

Source: RevenueBase Database · checked Sep 22, 2026
15Partial evidenceVancouver, BC, CanadaHQ checked Sep 22, 202611-5035 contacts →

Partial evidence

“Visualping is the best tool for monitoring website changes.”

Source: RevenueBase Database · checked Sep 22, 2026
16Partial evidenceRosebank, South AfricaHQ checked Sep 22, 202611-5030 contacts →

Partial evidence

“YOUR BUSINESS AND YOUR TECHNOLOGY MONITORED BY ONE TEAM ON ONE PLATFORM We are a premier monitoring service organisation giving you visibility and decision making power over your…”

Source: RevenueBase Database · checked Sep 22, 2026
17Indirect evidenceSao Paulo, BrazilHQ checked Sep 22, 202651-20026 contacts →

Indirect evidence

“v-tracker (by alexandria.ai) é a ferramenta mais completa que vai te ajudar a monitorar através de uma única interface as diversas redes sociais e mídias digitais, com SAC 2.0…”

Source: RevenueBase Database · checked Sep 22, 2026
18Indirect evidencePalo Alto, CA, United StatesHQ checked Sep 22, 202611-5026 contacts →

Indirect evidence

“Uptime.com provides peace of mind to thousands of customers like Apple, Microsoft, IBM, Palo Alto Networks, Kraft, and BNP Paribas who trust us to monitor the performance, health…”

Source: RevenueBase Database · checked Sep 22, 2026
19Partial evidenceMinnetonka, MN, United StatesHQ checked Sep 22, 202651-20026 contacts →

Partial evidence

“Our mission is to give our customers cutting edge features such as “image matching” within a real browser, element level trend charting, and video capture of website and web…”

Source: RevenueBase Database · checked Sep 22, 2026
20Indirect evidenceLondon, United KingdomHQ checked Sep 22, 202651-20024 contacts →

Indirect evidence

“ITRS Uptrends improves the digital website experience for more than users worldwide.”

Source: RevenueBase Database · checked Sep 22, 2026
21Partial evidenceCary, NC, United StatesHQ checked Sep 22, 202611-5022 contacts →

Partial evidence

“At iGLASS Networks, we specialize in providing a fully managed Network Monitoring Service that ensures your IT infrastructure is monitored 24/7.”

Source: RevenueBase Database · checked Sep 22, 2026
22Partial evidenceDenver, CO, United StatesHQ checked Sep 22, 202611-5021 contacts →

Partial evidence

“Scout Monitoring is the all-in-one monitoring platform built for lean dev teams who own products, not just tickets.”

Source: RevenueBase Database · checked Sep 22, 2026
23Partial evidenceZug, SwitzerlandHQ checked Sep 22, 20261-1020 contacts →

Partial evidence

“With Darknetsearch we uncover compromised data in dark web markets, forums, botnet logs, IRC, social media, telegram channels and other sources with real time alerts and automated…”

Source: RevenueBase Database · checked Sep 22, 2026
24Partial evidenceSri LankaHQ checked Sep 22, 202611-5017 contacts →

Partial evidence

“A leading Network Monitoring Solutions Company”

Source: RevenueBase Database · checked Sep 22, 2026
25Partial evidenceSliema, MaltaHQ checked Sep 22, 202611-5017 contacts →

Partial evidence

“UptimeRobot is the most popular website monitoring service in the world.”

Source: RevenueBase Database · checked Sep 22, 2026

Showing 25 of 409 web monitoring services worldwide

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Web monitoring services worldwide at a glance

As of Sep 22, 2026
51.0%Verified-email coverage
33.3Average contacts per company
1-10Median size (employees)
3.7%Largest-city concentration · London
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
263
11-50
115
51-200
18
201-500
4
501-1,000
2
1,001-5,000
3
5,001-10,000
2
10001+
2

Email recency is reported on each country list linked below.

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 web monitoring 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.
Coverage
Every country. Country and city lists for web monitoring services are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “web monitoring 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 web monitoring 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 web monitoring services, and records with no verified work email.
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, 6,953 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 22, 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.

Web monitoring services by location

1 lists · largest first

Every Web monitoring 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 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 web monitoring 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 web monitoring services are there worldwide?

RevenueBase identified 409 web monitoring services worldwide 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?

Datadog, headquartered in New York, tops this list with the largest team on record.

Which country has the most web monitoring services?

The United States leads with 79 companies. Every web monitoring services list by country and city is linked on this page.

Which city has the most web monitoring services?

London leads with 15 headquartered companies, followed by San Francisco (7) and Paris (6).

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 6,953 verified decision-maker contacts tracked across these 409 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 22, 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.