Company lists · Data refreshed September 2026
Top 25 Professional directories worldwide
RevenueBase identified 261 company matches for professional directories worldwide as of September 2026 and tracks 2,133 professional contacts across them, including 236 with verified work emails. The United States is the largest market and London the largest hub.
This list covers company matches for professional directories 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 September 20, 2026. Country and city lists for professional directories 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.
The 25 largest professional directories worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 190 contacts → | ||||
Exact match “Counting over 50 years of experience and expertise, Xrysos Odigos is the the most reliable, easy-to-use and effective business directory.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 2 | 168 contacts → | ||||
Exact match “Celebrating the legacies of distinguished professionals since 1898.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 3 | 135 contacts → | ||||
Exact match “The #1 online and print directories anywhere!” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 4 | 49 contacts → | ||||
Exact match “Kidd Aitken is the world’s largest legal marketing consultancy, specialising in legal directory submissions.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 5 | 28 contacts → | ||||
Exact match “Sussex Directories is a leading provider of online directories for professionals.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 6 | 18 contacts → | ||||
Exact match “Established in 1994, Experts.com promotes its qualified Members to the legal, business and media communities.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 7 | 10 contacts → | ||||
Exact match “GPBuddy.ie is Ireland's online medical directory and network of medical professionals and services for Healthcare Professionals.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 8 | 9 contacts → | ||||
Exact match “From Content to Care: WebMD launches WebMD Care Directories, connecting consumers to healthcare professionals.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 9 | 8 contacts → | ||||
Exact match “Recursos jurídicos para abogados litigantes.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 10 | 7 contacts → | ||||
Exact match “Established in 1998 SpecialistInfo has been providing a complete and comprehensive online directory of UK and Ireland Consultants, Hospitals, UK GPs and GP Practices for over a…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 11 | 6 contacts → | ||||
Exact match “We are former legal directories editors with two decades’ experience in this idiosyncratic but increasingly important world.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 12 | 6 contacts → | ||||
Exact match “Professional Business Publications, Inc, is a leading provider of high level contact information and data for business people involved in the home building and multifamily…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 13 | 5 contacts → | ||||
Exact match “Heartbeat.ai's Healthcare & Medical Database lets you quickly and easily search to find the Industry candidates you are looking for.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 14 | 4 contacts → | ||||
Exact match “Legal Find is an online directory of lawyers and legal services in Toronto, Canada.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 15 | 4 contacts → | ||||
Exact match “Battered Black Book is an invaluable compendium of tried and trusted contacts – all premium connections with gold-plated reputations for the products and services they provide.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 16 | 2 contacts → | ||||
Exact match “LexTrack is comprehensive legal directories management software that helps law firms manage their directories and awards processes all in one place.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 17 | 2 contacts → | ||||
Exact match “Local Legal Internet Marketing LocalLawyers.com publishes local legal guides that provide legal consumers content-rich lawyer profiles.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 18 | 2 contacts → | ||||
Exact match “Jan Walsh, LLC pioneered local, profile based internet guides in 2006.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 19 | 2 contacts → | ||||
Exact match “A Directory for professionals serving the Event, Entertainment Beauty Industry.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 20 | 2 contacts → | ||||
Exact match “See description at Best Lawyers.com, Law.com, or Martindale-Hubbell.com.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 21 | 2 contacts → | ||||
Exact match “For adjusters, NCMs, & Attorneys: Workers-Compensation-Doctors is a unique national workers’ compensation physician directory which lists a wide range of doctors across the United…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 22 | 2 contacts → | ||||
Exact match “South Africa's top specialist Attorney Directory” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 23 | 2 contacts → | ||||
Exact match “JurisPro maintains the most substantive directory for expert witnesses available.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 24 | 1 contacts → | ||||
Exact match “Full service firm for all legal solutions & directory/panel of professionals.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 25 | 1 contacts → | ||||
Exact match “Online Member Directory provides directory programs for groups including churches, organizations, schools, athletic organizations, retirement communities, businesses, and more…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “professional directories”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 261 professional directories worldwide
See the full list, filter by size, metro and specialty, and access 236 tracked professional contacts with verified work emails. Direct dials are available where recorded.
Free signup · no credit card
Professional directories worldwide at a glance
As of Sep 20, 2026Companies by employee count
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 professional directories are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “professional directories” 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 236 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 September 20, 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.
Professional directories by location
1 lists · largest firstEvery Professional directories 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 “professional directories”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many professional directories are there worldwide?
RevenueBase identified 261 company matches for professional directories worldwide as of September 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?
Greek Yellow Pages tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most professional directories?
The United States leads with 80 companies. Every professional directories list by country and city is linked on this page.
Which city has the most professional directories?
London leads with 11 company records, followed by Los Angeles (6) and New York (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 236 professional contacts with verified work emails tracked across these 261 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 September 20, 2026.
Ready to reach these companies? Verified emails and direct dials for all 261 professional directories worldwide. Start with a free account, no credit card.
Download this list →Related lists
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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.
More company lists
Company intelligence · public preview
Top 25 professional directories worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 261 matching company records for professional directories worldwide, with 2,133 tracked contacts and 236 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 20, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 professional directories worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Greek Yellow Pagesxo.gr HQ: Nea Ionia, GreeceReported employees: 201-500 | Nea Ionia, Greece | 201-500 | Exact match | 190 contacts → |
“Counting over 50 years of experience and expertise, Xrysos Odigos is the the most reliable, easy-to-use and effective business directory.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Marquis Who's WHOmarquiswhoswho.com HQ: Uniondale, NY, United StatesReported employees: 201-500 | Uniondale, NY, United States | 201-500 | Exact match | 168 contacts → |
“Celebrating the legacies of distinguished professionals since 1898.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Phone Directories Companypdcpages.comHQ: Orem, UT, United StatesReported employees: 501-1,000 | Orem, UT, United States | 501-1,000 | Exact match | 135 contacts → |
“The #1 online and print directories anywhere!” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Kidd Aitken Legal Marketingkiddaitken.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 49 contacts → |
“Kidd Aitken is the world’s largest legal marketing consultancy, specialising in legal directory submissions.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Sussex Directoriessussexdirectories.com HQ: Cayman IslandsReported employees: 1-10 | Cayman Islands | 1-10 | Exact match | 28 contacts → |
“Sussex Directories is a leading provider of online directories for professionals.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | experts.comexperts.com HQ: Stockton, CA, United StatesReported employees: 11-50 | Stockton, CA, United States | 11-50 | Exact match | 18 contacts → |
“Established in 1994, Experts.com promotes its qualified Members to the legal, business and media communities.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | gpbuddy.iegpbuddy.ie HQ: Dublin 2, IrelandReported employees: 1-10 | Dublin 2, Ireland | 1-10 | Exact match | 10 contacts → |
“GPBuddy.ie is Ireland's online medical directory and network of medical professionals and services for Healthcare Professionals.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Webmd Care Directoriesdoctor.webmd.com HQ: El Segundo, CA, United StatesReported employees: 201-500 | El Segundo, CA, United States | 201-500 | Exact match | 9 contacts → |
“From Content to Care: WebMD launches WebMD Care Directories, connecting consumers to healthcare professionals.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Buholegalbuholegal.com HQ: San Pedro Cholula, MexicoReported employees: 1-10 | San Pedro Cholula, Mexico | 1-10 | Exact match | 8 contacts → |
“Recursos jurídicos para abogados litigantes.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Specialistinfospecialistinfo.com HQ: Harrogate, United KingdomReported employees: 1-10 | Harrogate, United Kingdom | 1-10 | Exact match | 7 contacts → |
“Established in 1998 SpecialistInfo has been providing a complete and comprehensive online directory of UK and Ireland Consultants, Hospitals, UK GPs and GP Practices for over a…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Sran Whitfield Consultingsranwhitfield.comHQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 6 contacts → |
“We are former legal directories editors with two decades’ experience in this idiosyncratic but increasingly important world.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Professional Business Publications, INCprobizpublications.com HQ: Mission Viejo, CA, United StatesReported employees: 1-10 | Mission Viejo, CA, United States | 1-10 | Exact match | 6 contacts → |
“Professional Business Publications, Inc, is a leading provider of high level contact information and data for business people involved in the home building and multifamily…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | heartbeat.aiheartbeat.ai HQ: DE, United StatesReported employees: 11-50 | DE, United States | 11-50 | Exact match | 5 contacts → |
“Heartbeat.ai's Healthcare & Medical Database lets you quickly and easily search to find the Industry candidates you are looking for.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Legal Findlegalfind.ca HQ: CanadaReported employees: 1-10 | Canada | 1-10 | Exact match | 4 contacts → |
“Legal Find is an online directory of lawyers and legal services in Toronto, Canada.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Battered Black Bookthebbbook.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 4 contacts → |
“Battered Black Book is an invaluable compendium of tried and trusted contacts – all premium connections with gold-plated reputations for the products and services they provide.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Lextrack Directories Softwarelextrack.comHQ: Rockville, MD, United StatesReported employees: 1-10 | Rockville, MD, United States | 1-10 | Exact match | 2 contacts → |
“LexTrack is comprehensive legal directories management software that helps law firms manage their directories and awards processes all in one place.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Locallawyers.com, LLClocallawyers.com HQ: Vestavia Hills, AL, United StatesReported employees: 1-10 | Vestavia Hills, AL, United States | 1-10 | Exact match | 2 contacts → |
“Local Legal Internet Marketing LocalLawyers.com publishes local legal guides that provide legal consumers content-rich lawyer profiles.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | JAN Walsh, LLCjanwalsh.com HQ: Birmingham, United StatesReported employees: 1-10 | Birmingham, United States | 1-10 | Exact match | 2 contacts → |
“Jan Walsh, LLC pioneered local, profile based internet guides in 2006.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Deco Marketing Agencydecomarketingagency.com HQ: Santa Monica, CA, United StatesReported employees: 1-10 | Santa Monica, CA, United States | 1-10 | Exact match | 2 contacts → |
“A Directory for professionals serving the Event, Entertainment Beauty Industry.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | HQ: Los Angeles, CA, United StatesReported employees: 1-10 | Los Angeles, CA, United States | 1-10 | Exact match | 2 contacts → |
“See description at Best Lawyers.com, Law.com, or Martindale-Hubbell.com.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | workers-compensation-doctors.comworkers-compensation-doctors.com HQ: Sanford, FL, United StatesReported employees: 1-10 | Sanford, FL, United States | 1-10 | Exact match | 2 contacts → |
“For adjusters, NCMs, & Attorneys: Workers-Compensation-Doctors is a unique national workers’ compensation physician directory which lists a wide range of doctors across the United…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Find An Attorney SAfindanattorney.co.za HQ: Cape Town, South AfricaReported employees: 1-10 | Cape Town, South Africa | 1-10 | Exact match | 2 contacts → |
“South Africa's top specialist Attorney Directory” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Jurispro Expert Witness Directoryjurispro.com HQ: Hermosa Beach, CA, United StatesReported employees: 1-10 | Hermosa Beach, CA, United States | 1-10 | Exact match | 2 contacts → |
“JurisPro maintains the most substantive directory for expert witnesses available.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  RED Bayonet Associatesredbayonet.comHQ: Mumbai, IndiaReported employees: 1-10 | Mumbai, India | 1-10 | Exact match | 1 contacts → |
“Full service firm for all legal solutions & directory/panel of professionals.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Online Member Directoryonlinememberdirectory.com HQ: Evansville, IN, United StatesReported employees: 1-10 | Evansville, IN, United States | 1-10 | Exact match | 1 contacts → |
“Online Member Directory provides directory programs for groups including churches, organizations, schools, athletic organizations, retirement communities, businesses, and more…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 261 company matches
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Professional directories: dataset insights
September 20, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
258 records in the displayed employee bands.
3 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 261 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 20, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Professional directories by location
1 lists · largest firstEvery Professional directories list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for professional directories?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many professional directories did RevenueBase find worldwide?
The saved snapshot records 261 matching company records, 2,133 tracked contacts and 236 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 20, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 professional directories worldwide. Snapshot: September 20, 2026. https://revenuebase.ai/companies/browse/professional-directories.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 professional directories worldwide
RevenueBase records 261 matching company records for professional directories worldwide, with 2,133 tracked contacts and 236 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 20, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 professional directories worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Greek Yellow Pagesxo.gr HQ: Nea Ionia, GreeceReported employees: 201-500 | Nea Ionia, Greece | 201-500 | Exact match | 190 contacts → |
“Counting over 50 years of experience and expertise, Xrysos Odigos is the the most reliable, easy-to-use and effective business directory.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Marquis Who's WHOmarquiswhoswho.com HQ: Uniondale, NY, United StatesReported employees: 201-500 | Uniondale, NY, United States | 201-500 | Exact match | 168 contacts → |
“Celebrating the legacies of distinguished professionals since 1898.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Phone Directories Companypdcpages.com HQ: Orem, UT, United StatesReported employees: 501-1,000 | Orem, UT, United States | 501-1,000 | Exact match | 135 contacts → |
“The #1 online and print directories anywhere!” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Kidd Aitken Legal Marketingkiddaitken.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 49 contacts → |
“Kidd Aitken is the world’s largest legal marketing consultancy, specialising in legal directory submissions.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Sussex Directoriessussexdirectories.com HQ: Cayman IslandsReported employees: 1-10 | Cayman Islands | 1-10 | Exact match | 28 contacts → |
“Sussex Directories is a leading provider of online directories for professionals.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | experts.comexperts.com HQ: Stockton, CA, United StatesReported employees: 11-50 | Stockton, CA, United States | 11-50 | Exact match | 18 contacts → |
“Established in 1994, Experts.com promotes its qualified Members to the legal, business and media communities.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | gpbuddy.iegpbuddy.ie HQ: Dublin 2, IrelandReported employees: 1-10 | Dublin 2, Ireland | 1-10 | Exact match | 10 contacts → |
“GPBuddy.ie is Ireland's online medical directory and network of medical professionals and services for Healthcare Professionals.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Webmd Care Directoriesdoctor.webmd.com HQ: El Segundo, CA, United StatesReported employees: 201-500 | El Segundo, CA, United States | 201-500 | Exact match | 9 contacts → |
“From Content to Care: WebMD launches WebMD Care Directories, connecting consumers to healthcare professionals.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Buholegalbuholegal.com HQ: San Pedro Cholula, MexicoReported employees: 1-10 | San Pedro Cholula, Mexico | 1-10 | Exact match | 8 contacts → |
“Recursos jurídicos para abogados litigantes.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Specialistinfospecialistinfo.com HQ: Harrogate, United KingdomReported employees: 1-10 | Harrogate, United Kingdom | 1-10 | Exact match | 7 contacts → |
“Established in 1998 SpecialistInfo has been providing a complete and comprehensive online directory of UK and Ireland Consultants, Hospitals, UK GPs and GP Practices for over a…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Sran Whitfield Consultingsranwhitfield.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 6 contacts → |
“We are former legal directories editors with two decades’ experience in this idiosyncratic but increasingly important world.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Professional Business Publications, INCprobizpublications.com HQ: Mission Viejo, CA, United StatesReported employees: 1-10 | Mission Viejo, CA, United States | 1-10 | Exact match | 6 contacts → |
“Professional Business Publications, Inc, is a leading provider of high level contact information and data for business people involved in the home building and multifamily…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | heartbeat.aiheartbeat.ai HQ: DE, United StatesReported employees: 11-50 | DE, United States | 11-50 | Exact match | 5 contacts → |
“Heartbeat.ai's Healthcare & Medical Database lets you quickly and easily search to find the Industry candidates you are looking for.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Legal Findlegalfind.ca HQ: CanadaReported employees: 1-10 | Canada | 1-10 | Exact match | 4 contacts → |
“Legal Find is an online directory of lawyers and legal services in Toronto, Canada.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Battered Black Bookthebbbook.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 4 contacts → |
“Battered Black Book is an invaluable compendium of tried and trusted contacts – all premium connections with gold-plated reputations for the products and services they provide.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Lextrack Directories Softwarelextrack.com HQ: Rockville, MD, United StatesReported employees: 1-10 | Rockville, MD, United States | 1-10 | Exact match | 2 contacts → |
“LexTrack is comprehensive legal directories management software that helps law firms manage their directories and awards processes all in one place.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Locallawyers.com, LLClocallawyers.com HQ: Vestavia Hills, AL, United StatesReported employees: 1-10 | Vestavia Hills, AL, United States | 1-10 | Exact match | 2 contacts → |
“Local Legal Internet Marketing LocalLawyers.com publishes local legal guides that provide legal consumers content-rich lawyer profiles.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | JAN Walsh, LLCjanwalsh.com HQ: Birmingham, United StatesReported employees: 1-10 | Birmingham, United States | 1-10 | Exact match | 2 contacts → |
“Jan Walsh, LLC pioneered local, profile based internet guides in 2006.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Deco Marketing Agencydecomarketingagency.com HQ: Santa Monica, CA, United StatesReported employees: 1-10 | Santa Monica, CA, United States | 1-10 | Exact match | 2 contacts → |
“A Directory for professionals serving the Event, Entertainment Beauty Industry.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | HQ: Los Angeles, CA, United StatesReported employees: 1-10 | Los Angeles, CA, United States | 1-10 | Exact match | 2 contacts → |
“See description at Best Lawyers.com, Law.com, or Martindale-Hubbell.com.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | workers-compensation-doctors.comworkers-compensation-doctors.com HQ: Sanford, FL, United StatesReported employees: 1-10 | Sanford, FL, United States | 1-10 | Exact match | 2 contacts → |
“For adjusters, NCMs, & Attorneys: Workers-Compensation-Doctors is a unique national workers’ compensation physician directory which lists a wide range of doctors across the United…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Find An Attorney SAfindanattorney.co.za HQ: Cape Town, South AfricaReported employees: 1-10 | Cape Town, South Africa | 1-10 | Exact match | 2 contacts → |
“South Africa's top specialist Attorney Directory” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Jurispro Expert Witness Directoryjurispro.com HQ: Hermosa Beach, CA, United StatesReported employees: 1-10 | Hermosa Beach, CA, United States | 1-10 | Exact match | 2 contacts → |
“JurisPro maintains the most substantive directory for expert witnesses available.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | RED Bayonet Associatesredbayonet.com HQ: Mumbai, IndiaReported employees: 1-10 | Mumbai, India | 1-10 | Exact match | 1 contacts → |
“Full service firm for all legal solutions & directory/panel of professionals.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Online Member Directoryonlinememberdirectory.com HQ: Evansville, IN, United StatesReported employees: 1-10 | Evansville, IN, United States | 1-10 | Exact match | 1 contacts → |
“Online Member Directory provides directory programs for groups including churches, organizations, schools, athletic organizations, retirement communities, businesses, and more…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 261 company matches
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Professional directories: dataset insights
September 20, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
258 records in the displayed employee bands.
3 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 261 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 20, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Professional directories by location
1 lists · largest firstEvery Professional directories list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for professional directories?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many professional directories did RevenueBase find worldwide?
The saved snapshot records 261 matching company records, 2,133 tracked contacts and 236 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 20, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
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Cite this list
RevenueBase Data Team. Top 25 professional directories worldwide. Snapshot: September 20, 2026. https://revenuebase.ai/companies/browse/professional-directories.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗