Company lists · Data refreshed October 2026
Top 25 Question and answer and knowledge community platform companies worldwide
RevenueBase identified 298 company matches for question and answer and knowledge community platform companies worldwide as of October 2026 and tracks 8,113 professional contacts across them, including 2,403 with verified work emails. The United States is the largest market and Bangalore the largest hub.
This list covers company matches for question and answer and knowledge community platform companies 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 October 20, 2026. Country and city lists for question and answer and knowledge community platform companies 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 question and answer and knowledge community platform companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 4,362 contacts → | ||||
Exact match “Reddit is the heart of the internet, where millions of people get together to talk about any topic imaginable.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 2 | 932 contacts → | ||||
Exact match “Quora’s mission is to grow the world’s collective intelligence.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 3 | 527 contacts → | ||||
Exact match “Stack Overflow strives to be the most vital source for technologists, helping them to cultivate community, power learning, and unlock growth.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 4 | 164 contacts → | ||||
Exact match “Loved by client teams for premium primary market research and recruitment assistance as we uncover and help find niche and hard-to-get insights with our white-glove custom…” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 5 | 48 contacts → | ||||
Exact match “WHO WE ARE Greycaps is Asia's largest onstage quizzing and knowledge services company.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 6 | 47 contacts → | ||||
Exact match “gutefrage.net is the largest question-and-answer platform in the German-speaking world.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 7 | 44 contacts → | ||||
Exact match “GUURU is a peer-powered eCommerce platform that turns your customer community and their expertise into real-time product advice and AI visible on-page content.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 8 | 44 contacts → | ||||
Exact match “KızlarSoruyor, Türkiye’nin en büyük online topluluk platformu.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 9 | 34 contacts → | ||||
Exact match “Unlock the Power of Expert Advice: Need answers to your burning questions or concerns?” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 10 | 19 contacts → | ||||
Exact match “Social Knowledge® was founded to foster online communities, sites where people with similar interests connect to harness the distributed expertise of the members.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 11 | 14 contacts → | ||||
Exact match “Tip n’ Tag is a Q&A platform where users can ask specific questions on where to find specific products, services and activities in their city.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 12 | 10 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 13 | 9 contacts → | ||||
Exact match “Make Sense of Your World Better questions lead to better answers.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 14 | 8 contacts → | ||||
Exact match “Selasar adalah platform digital untuk para pengguna (users) berbagi pengetahuan, pengalaman, dan wawasan.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 15 | 8 contacts → | ||||
Exact match “المحتوى هي أول منصة عربية يمكنك فيها أن تضيف ما لديك من أسئلة في مختلف الموضوعات، وتحصل على إجاباتها من مجتمعٍ كبير من المستخدمين الآخرين والمتخصصين أصحاب الخبرات.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 16 | 7 contacts → | ||||
Exact match “Developers sit at the hub of innovation in tech and tech-enabled companies.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 17 | 7 contacts → | ||||
Exact match “Ask, Search, Discover: The AI Fusion of Chat and Web Search” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 18 | 7 contacts → | ||||
Exact match “Our mission is to transform how people engage with and profit from shared knowledge.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 19 | 6 contacts → | ||||
Exact match “iOOi pronounced: I | You | We We are iOOi, a social knowledge-sharing platform.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 20 | 6 contacts → | ||||
Exact match “LINE (service@ansforce.com)” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 21 | 5 contacts → | ||||
Exact match “Dewey turns expert content libraries into AI-powered Q&A that audiences actually use.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 22 | 5 contacts → | ||||
Exact match “Help businesses give or sell the information using artificial inteligence.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 23 | 4 contacts → | ||||
Exact match “AllAnswered helps teams collectively manage and grow their knowledge base using what we call Micro-documents™ such as Q & As, blogs, articles, ideas and polls.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 24 | 4 contacts → | ||||
Exact match “Skello is a community-driven platform to use your knowledge, predict the future and earn money.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 25 | 4 contacts → | ||||
Exact match “Codidact's goal is to enable communities of shared interests to come together and determine for themselves how they pool, share, and teach their collective knowledge, as part of a…” Recorded in the RevenueBase company graph · Oct 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 “question and answer and knowledge community platform companies”. 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 298 question and answer and knowledge community platform companies worldwide
See the full list, filter by size, metro and specialty, and access 2,403 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Question and answer and knowledge community platform companies worldwide at a glance
As of Oct 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 question and answer and knowledge community platform companies are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “question and answer and knowledge community platform companies” 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 2,403 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 October 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.
Question and answer and knowledge community platform companies by location
1 lists · largest firstEvery Question and answer and knowledge community platform companies 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 “question and answer and knowledge community platform companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many question and answer and knowledge community platform companies are there worldwide?
RevenueBase identified 298 company matches for question and answer and knowledge community platform companies worldwide as of October 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?
Reddit, INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most question and answer and knowledge community platform companies?
The United States leads with 51 companies. Every question and answer and knowledge community platform companies list by country and city is linked on this page.
Which city has the most question and answer and knowledge community platform companies?
Bangalore leads with 8 company records, followed by London (6) and New York (6).
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 2,403 professional contacts with verified work emails tracked across these 298 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 October 20, 2026.
Ready to reach these companies? Verified emails and direct dials for all 298 question and answer and knowledge community platform companies worldwide. Start with a free account, no credit card.
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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 question and answer and knowledge community platform companies worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 298 matching company records for question and answer and knowledge community platform companies worldwide, with 8,113 tracked contacts and 2,403 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: October 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 question and answer and knowledge community platform companies 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 |  Reddit, INCredditinc.comHQ: San Francisco, CA, United StatesReported employees: 1,001-5,000 | San Francisco, CA, United States | 1,001-5,000 | Exact match | 4,362 contacts → |
“Reddit is the heart of the internet, where millions of people get together to talk about any topic imaginable.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  QUORAquora.comHQ: Mountain View, CA, United StatesReported employees: 201-500 | Mountain View, CA, United States | 201-500 | Exact match | 932 contacts → |
“Quora’s mission is to grow the world’s collective intelligence.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Stack Overflowstackoverflow.co HQ: New York, NY, United StatesReported employees: 201-500 | New York, NY, United States | 201-500 | Exact match | 527 contacts → |
“Stack Overflow strives to be the most vital source for technologists, helping them to cultivate community, power learning, and unlock growth.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Green Mindsgreenmindsinsights.com HQ: Brentwood, United StatesReported employees: 51-200 | Brentwood, United States | 51-200 | Exact match | 164 contacts → |
“Loved by client teams for premium primary market research and recruitment assistance as we uncover and help find niche and hard-to-get insights with our white-glove custom…” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Greycapsgreycaps.com HQ: Bangalore, IndiaReported employees: 11-50 | Bangalore, India | 11-50 | Exact match | 48 contacts → |
“WHO WE ARE Greycaps is Asia's largest onstage quizzing and knowledge services company.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Gutefrage.Net Gmbhgutefrage.net HQ: Munich, GermanyReported employees: 51-200 | Munich, Germany | 51-200 | Exact match | 47 contacts → |
“gutefrage.net is the largest question-and-answer platform in the German-speaking world.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Guuru Solutionsguuru.comHQ: Zurich, SwitzerlandReported employees: 11-50 | Zurich, Switzerland | 11-50 | Exact match | 44 contacts → |
“GUURU is a peer-powered eCommerce platform that turns your customer community and their expertise into real-time product advice and AI visible on-page content.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Kızlarsoruyorkizlarsoruyor.com HQ: TürkiyeReported employees: 11-50 | Türkiye | 11-50 | Exact match | 44 contacts → |
“KızlarSoruyor, Türkiye’nin en büyük online topluluk platformu.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Propeerspropeers.in HQ: Delhi, IndiaReported employees: Not recorded | Delhi, India | Not recorded | Exact match | 34 contacts → |
“Unlock the Power of Expert Advice: Need answers to your burning questions or concerns?” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Social Knowledge, LLCsocialknowledge.comHQ: Southlake, TX, United StatesReported employees: 11-50 | Southlake, TX, United States | 11-50 | Exact match | 19 contacts → |
“Social Knowledge® was founded to foster online communities, sites where people with similar interests connect to harness the distributed expertise of the members.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | TIP N' TAGtipntag.com HQ: Amman, JordanReported employees: 11-50 | Amman, Jordan | 11-50 | Exact match | 14 contacts → |
“Tip n’ Tag is a Q&A platform where users can ask specific questions on where to find specific products, services and activities in their city.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Supermesuperme.ai HQ: United StatesReported employees: 1-10 | United States | 1-10 | Exact match | 10 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 13 |  Senatesenatesense.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 9 contacts → |
“Make Sense of Your World Better questions lead to better answers.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Pt. Selasar Indonesia Baruselasar.com HQ: Jakarta Selatan, IndonesiaReported employees: 11-50 | Jakarta Selatan, Indonesia | 11-50 | Exact match | 8 contacts → |
“Selasar adalah platform digital untuk para pengguna (users) berbagi pengetahuan, pengalaman, dan wawasan.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | المحتوى Muhtwamuhtwa.net HQ: Cairo, EgyptReported employees: 1-10 | Cairo, Egypt | 1-10 | Exact match | 8 contacts → |
“المحتوى هي أول منصة عربية يمكنك فيها أن تضيف ما لديك من أسئلة في مختلف الموضوعات، وتحصل على إجاباتها من مجتمعٍ كبير من المستخدمين الآخرين والمتخصصين أصحاب الخبرات.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Devadadevada.comHQ: Raleigh-durham, NC, United StatesReported employees: 51-200 | Raleigh-durham, NC, United States | 51-200 | Exact match | 7 contacts → |
“Developers sit at the hub of innovation in tech and tech-enabled companies.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  PUBLCpublc.comHQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 7 contacts → |
“Ask, Search, Discover: The AI Fusion of Chat and Web Search” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  PEERApeera.aiHQ: Boca Raton, FL, United StatesReported employees: 11-50 | Boca Raton, FL, United States | 11-50 | Exact match | 7 contacts → |
“Our mission is to transform how people engage with and profit from shared knowledge.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  IOOIiooi.comHQ: Roseville, United StatesReported employees: 1-10 | Roseville, United States | 1-10 | Exact match | 6 contacts → |
“iOOi pronounced: I | You | We We are iOOi, a social knowledge-sharing platform.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Ansforceansforce.com HQ: 台北市, TaiwanReported employees: 1-10 | 台北市, Taiwan | 1-10 | Exact match | 6 contacts → |
“LINE (service@ansforce.com)” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Dewey Labsaskdewey.comHQ: Brooklyn, United StatesReported employees: 1-10 | Brooklyn, United States | 1-10 | Exact match | 5 contacts → |
“Dewey turns expert content libraries into AI-powered Q&A that audiences actually use.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Kwizmokwizmo.eu HQ: Ljubljana, SloveniaReported employees: 1-10 | Ljubljana, Slovenia | 1-10 | Exact match | 5 contacts → |
“Help businesses give or sell the information using artificial inteligence.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Allansweredallanswered.com HQ: United StatesReported employees: 11-50 | United States | 11-50 | Exact match | 4 contacts → |
“AllAnswered helps teams collectively manage and grow their knowledge base using what we call Micro-documents™ such as Q & As, blogs, articles, ideas and polls.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Skelloskello.in HQ: Gurgaon, IndiaReported employees: 1-10 | Gurgaon, India | 1-10 | Exact match | 4 contacts → |
“Skello is a community-driven platform to use your knowledge, predict the future and earn money.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | The Codidact Foundationcodidact.org HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 4 contacts → |
“Codidact's goal is to enable communities of shared interests to come together and determine for themselves how they pool, share, and teach their collective knowledge, as part of a…” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 298 company matches
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Question and answer and knowledge community platform companies: dataset insights
October 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
297 records in the displayed employee bands.
1 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 298 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: October 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 ↗
Question and answer and knowledge community platform companies by location
1 lists · largest firstEvery Question and answer and knowledge community platform companies 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 question and answer and knowledge community platform companies?
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 question and answer and knowledge community platform companies did RevenueBase find worldwide?
The saved snapshot records 298 matching company records, 8,113 tracked contacts and 2,403 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: October 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.
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Cite this list
RevenueBase Data Team. Top 25 question and answer and knowledge community platform companies worldwide. Snapshot: October 20, 2026. https://revenuebase.ai/companies/browse/question-and-answer-and-knowledge-community-platform-companies.
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 question and answer and knowledge community platform companies worldwide
RevenueBase records 298 matching company records for question and answer and knowledge community platform companies worldwide, with 8,113 tracked contacts and 2,403 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: October 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 question and answer and knowledge community platform companies 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 | Reddit, INCredditinc.com HQ: San Francisco, CA, United StatesReported employees: 1,001-5,000 | San Francisco, CA, United States | 1,001-5,000 | Exact match | 4,362 contacts → |
“Reddit is the heart of the internet, where millions of people get together to talk about any topic imaginable.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | QUORAquora.com HQ: Mountain View, CA, United StatesReported employees: 201-500 | Mountain View, CA, United States | 201-500 | Exact match | 932 contacts → |
“Quora’s mission is to grow the world’s collective intelligence.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Stack Overflowstackoverflow.co HQ: New York, NY, United StatesReported employees: 201-500 | New York, NY, United States | 201-500 | Exact match | 527 contacts → |
“Stack Overflow strives to be the most vital source for technologists, helping them to cultivate community, power learning, and unlock growth.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Green Mindsgreenmindsinsights.com HQ: Brentwood, United StatesReported employees: 51-200 | Brentwood, United States | 51-200 | Exact match | 164 contacts → |
“Loved by client teams for premium primary market research and recruitment assistance as we uncover and help find niche and hard-to-get insights with our white-glove custom…” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Greycapsgreycaps.com HQ: Bangalore, IndiaReported employees: 11-50 | Bangalore, India | 11-50 | Exact match | 48 contacts → |
“WHO WE ARE Greycaps is Asia's largest onstage quizzing and knowledge services company.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Gutefrage.Net Gmbhgutefrage.net HQ: Munich, GermanyReported employees: 51-200 | Munich, Germany | 51-200 | Exact match | 47 contacts → |
“gutefrage.net is the largest question-and-answer platform in the German-speaking world.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Guuru Solutionsguuru.com HQ: Zurich, SwitzerlandReported employees: 11-50 | Zurich, Switzerland | 11-50 | Exact match | 44 contacts → |
“GUURU is a peer-powered eCommerce platform that turns your customer community and their expertise into real-time product advice and AI visible on-page content.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Kızlarsoruyorkizlarsoruyor.com HQ: TürkiyeReported employees: 11-50 | Türkiye | 11-50 | Exact match | 44 contacts → |
“KızlarSoruyor, Türkiye’nin en büyük online topluluk platformu.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Propeerspropeers.in HQ: Delhi, IndiaReported employees: Not recorded | Delhi, India | Not recorded | Exact match | 34 contacts → |
“Unlock the Power of Expert Advice: Need answers to your burning questions or concerns?” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Social Knowledge, LLCsocialknowledge.com HQ: Southlake, TX, United StatesReported employees: 11-50 | Southlake, TX, United States | 11-50 | Exact match | 19 contacts → |
“Social Knowledge® was founded to foster online communities, sites where people with similar interests connect to harness the distributed expertise of the members.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | TIP N' TAGtipntag.com HQ: Amman, JordanReported employees: 11-50 | Amman, Jordan | 11-50 | Exact match | 14 contacts → |
“Tip n’ Tag is a Q&A platform where users can ask specific questions on where to find specific products, services and activities in their city.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Supermesuperme.ai HQ: United StatesReported employees: 1-10 | United States | 1-10 | Exact match | 10 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 13 | Senatesenatesense.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 9 contacts → |
“Make Sense of Your World Better questions lead to better answers.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Pt. Selasar Indonesia Baruselasar.com HQ: Jakarta Selatan, IndonesiaReported employees: 11-50 | Jakarta Selatan, Indonesia | 11-50 | Exact match | 8 contacts → |
“Selasar adalah platform digital untuk para pengguna (users) berbagi pengetahuan, pengalaman, dan wawasan.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | المحتوى Muhtwamuhtwa.net HQ: Cairo, EgyptReported employees: 1-10 | Cairo, Egypt | 1-10 | Exact match | 8 contacts → |
“المحتوى هي أول منصة عربية يمكنك فيها أن تضيف ما لديك من أسئلة في مختلف الموضوعات، وتحصل على إجاباتها من مجتمعٍ كبير من المستخدمين الآخرين والمتخصصين أصحاب الخبرات.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Devadadevada.com HQ: Raleigh-durham, NC, United StatesReported employees: 51-200 | Raleigh-durham, NC, United States | 51-200 | Exact match | 7 contacts → |
“Developers sit at the hub of innovation in tech and tech-enabled companies.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | PUBLCpublc.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 7 contacts → |
“Ask, Search, Discover: The AI Fusion of Chat and Web Search” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | PEERApeera.ai HQ: Boca Raton, FL, United StatesReported employees: 11-50 | Boca Raton, FL, United States | 11-50 | Exact match | 7 contacts → |
“Our mission is to transform how people engage with and profit from shared knowledge.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | IOOIiooi.com HQ: Roseville, United StatesReported employees: 1-10 | Roseville, United States | 1-10 | Exact match | 6 contacts → |
“iOOi pronounced: I | You | We We are iOOi, a social knowledge-sharing platform.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Ansforceansforce.com HQ: 台北市, TaiwanReported employees: 1-10 | 台北市, Taiwan | 1-10 | Exact match | 6 contacts → |
“LINE (service@ansforce.com)” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Dewey Labsaskdewey.com HQ: Brooklyn, United StatesReported employees: 1-10 | Brooklyn, United States | 1-10 | Exact match | 5 contacts → |
“Dewey turns expert content libraries into AI-powered Q&A that audiences actually use.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Kwizmokwizmo.eu HQ: Ljubljana, SloveniaReported employees: 1-10 | Ljubljana, Slovenia | 1-10 | Exact match | 5 contacts → |
“Help businesses give or sell the information using artificial inteligence.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Allansweredallanswered.com HQ: United StatesReported employees: 11-50 | United States | 11-50 | Exact match | 4 contacts → |
“AllAnswered helps teams collectively manage and grow their knowledge base using what we call Micro-documents™ such as Q & As, blogs, articles, ideas and polls.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Skelloskello.in HQ: Gurgaon, IndiaReported employees: 1-10 | Gurgaon, India | 1-10 | Exact match | 4 contacts → |
“Skello is a community-driven platform to use your knowledge, predict the future and earn money.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | The Codidact Foundationcodidact.org HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 4 contacts → |
“Codidact's goal is to enable communities of shared interests to come together and determine for themselves how they pool, share, and teach their collective knowledge, as part of a…” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 298 company matches
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Question and answer and knowledge community platform companies: dataset insights
October 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
297 records in the displayed employee bands.
1 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 298 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: October 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 ↗
Question and answer and knowledge community platform companies by location
1 lists · largest firstEvery Question and answer and knowledge community platform companies 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 question and answer and knowledge community platform companies?
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 question and answer and knowledge community platform companies did RevenueBase find worldwide?
The saved snapshot records 298 matching company records, 8,113 tracked contacts and 2,403 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: October 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.
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Cite this list
RevenueBase Data Team. Top 25 question and answer and knowledge community platform companies worldwide. Snapshot: October 20, 2026. https://revenuebase.ai/companies/browse/question-and-answer-and-knowledge-community-platform-companies.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗