Company lists · Data refreshed November 2026

Top 25 Complaints management service providers worldwide

RevenueBase identified 218 company matches for complaints management service providers worldwide as of November 2026 and tracks 5,411 professional contacts across them, including 1,047 with verified work emails. The United Kingdom is the largest market and London the largest hub.

This list covers company matches for complaints management service providers 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 complaints management service providers 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
218Companies
5,411Contacts tracked
1,047Verified emails
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The 25 largest complaints management service providers worldwide

Ranked by team size
Top 25 of 218 company matches for complaints management service providers 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 matchReading, United KingdomHQ recorded Nov 6, 20261,001-5,0001,883 contacts →

Exact match

“We are Huntswood.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Nov 6, 20261,001-5,000367 contacts →

Exact match

“Innovation Group provides end-to-end handling for claims from start to finish, including 365, 24/7 omni-channel customer service, an approved repairer network, and highly…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchBirmingham, United KingdomHQ recorded Nov 6, 2026201-500204 contacts →

Exact match

“The Legal Ombudsman (LeO) resolves complaints about providers of legal services that haven’t been resolved to customers’ satisfaction – as quickly and informally as possible.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchThe Hague, NetherlandsHQ recorded Nov 6, 202651-200149 contacts →

Exact match

“Klachten te allen tijde voorkomen, soms lukt dat niet.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchMogale City, South AfricaHQ recorded Nov 6, 202651-200134 contacts →

Exact match

“We're a financial services provider built around one simple idea: protecting what matters shouldn't be complicated.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchMumbai, IndiaHQ recorded Nov 6, 202651-200131 contacts →

Exact match

“Built for the connected world, HAWK is a new-age Customer Experience agency focused on ORM, Listening, and Customer Support.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchSydney, AustraliaHQ recorded Nov 6, 202651-20082 contacts →

Exact match

“The Energy & Water Ombudsman NSW (EWON) is an industry-based Ombudsman scheme that provides NSW energy and water customers with independent, free, informal dispute resolution…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchCoventry, United KingdomHQ recorded Nov 6, 202651-20065 contacts →

Exact match

“We are the final stage for complaints about councils, all adult social care providers (including care homes and home care agencies) and some other organisations providing local…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchOslo, NorwayHQ recorded Nov 6, 202651-20064 contacts →

Exact match

“Finansklagenemnda (FinKN) er et bransjebasert klageorgan som behandler klagesaker mot banker, forsikringsselskap, inkassoselskap, og andre finansselskap.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchLelystad, NetherlandsHQ recorded Nov 6, 202651-20057 contacts →

Exact match

“Quasir Klachtenbemiddeling detacheert onafhankelijke klachtenbemiddelaars bij zorginstellingen door heel Nederland.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchSao Paulo, BrazilHQ recorded Nov 6, 202651-20057 contacts →

Exact match

“Solução tecnológica para prevenção, gestão e resolução de conflitos.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchDublin, IrelandHQ recorded Nov 6, 202651-20053 contacts →

Exact match

“The Financial Services and Pensions Ombudsman is an independent, impartial, fair and free service that helps resolve complaints from consumers, including small businesses and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchLas Vegas, NV, United StatesHQ recorded Nov 6, 202611-5053 contacts →

Exact match

“PissedConsumer.com helps consumers speak up, connect with companies, and get their issues resolved.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchAnkara, TürkiyeHQ recorded Nov 6, 202611-5052 contacts →

Exact match

“Çözüm için: Şikayetvar” mottosuyla 2001 yılında kurulan ve müşteriler ile markalar arasında köprü görevi üstlenen bir çözüm platformu olan Sikayetvar.com, fayda tabanlı pek çok…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchFareham, United KingdomHQ recorded Nov 6, 202651-20044 contacts →

Exact match

“THE FAIR TRADE PRACTICE – THE CLAIMS MANAGEMENT SPECIALIST WITH A DIFFERENCE We have experienced unprecedented success and growth due to our ethical approach in helping clients…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchCaba, IndiaHQ recorded Nov 6, 202611-5037 contacts →

Exact match

“En Resguarda ayudamos a las organizaciones a gestionar denuncias internas de forma profesional, confidencial y estratégica, para prevenir riesgos y tomar mejores decisiones.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchLondon, United KingdomHQ recorded Nov 6, 20261,001-5,00030 contacts →

Exact match

“My Contractor/Consultancy Company”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchDes Plaines, FL, United StatesHQ recorded Nov 6, 202651-20028 contacts →

Exact match

“About D&A Services, LLC objective is to provide all aspects of customer service and compliant collection remedies while providing a quality experience for all people that come in…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchMumbai, IndiaHQ recorded Nov 6, 202611-5028 contacts →

Exact match

“Rohit is a specialist in service experience management with well-rounded business orientation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-5027 contacts →

Exact match

“We help enterprise organisations and SMEs move their claims and complaints handling into the future Claims and complaints are everywhere and most organisations with a retail…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchGorinchem, NetherlandsHQ recorded Nov 6, 202611-5027 contacts →

Exact match

“Het CBKZ staat voor een deskundige en onafhankelijke afwikkeling van klachten binnen zorgorganisaties.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchSt. Louis, MO, United StatesHQ recorded Nov 6, 202611-5025 contacts →

Exact match

“Responsive.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-5025 contacts →

Exact match

“Resolver is the UK’s largest independent service that helps consumers raise and resolve issues with organisations for free.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchFlorianópolis, BrazilHQ recorded Nov 6, 202611-5021 contacts →

Exact match

“Com mais de 20 anos de experiência, auxiliamos médias e grandes empresas a transformar o relacionamento com clientes, fornecedores e colaboradores.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchTarzana, NJ, United StatesHQ recorded Nov 6, 202611-5020 contacts →

Exact match

“Founded in 1981, Jonathan Neil & Associates (JNA) has been providing Receivable Management Services for three decades.”

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

Showing 25 of 218 complaints management service providers worldwide

See the full list, filter by size, metro and specialty, and access 1,047 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Complaints management service providers worldwide at a glance

As of Nov 6, 2026
19.3%Verified-email coverage
24.8Average contacts per company
1-10Median size (employees)
4.1%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
115
11-50
58
51-200
20
201-500
3
501-1,000
1
1,001-5,000
9
10001+
1

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 complaints management service providers are linked below.
What qualifies
Company records worldwide whose business descriptions match “complaints management service providers” 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 1,047 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.

Complaints management service providers by location

1 lists · largest first

Every Complaints management service providers 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 “complaints management service providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many complaints management service providers are there worldwide?

RevenueBase identified 218 company matches for complaints management service providers 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?

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

Which country has the most complaints management service providers?

The United Kingdom leads with 36 companies. Every complaints management service providers list by country and city is linked on this page.

Which city has the most complaints management service providers?

London leads with 9 company records, followed by Sao Paulo (7) and Brussels (5).

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 1,047 professional contacts with verified work emails tracked across these 218 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.