Company lists · Data refreshed November 2026
Top 25 Coin grading services worldwide
RevenueBase identified 92 company matches for coin grading services worldwide as of November 2026 and tracks 1,994 professional contacts across them, including 1,148 with verified work emails. The United States is the largest market and London the largest hub.
This list covers company matches for coin grading services worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026. Country and city lists for coin grading services follow the table.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest coin grading services worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,208 contacts → | ||||
Exact match “Collectors is the leading creator of innovative technology that provides value-added services for collectors worldwide.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 192 contacts → | ||||
Exact match “The Certified Collectibles Group is a global provider of expert and impartial authentication and grading services for collectibles.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 65 contacts → | ||||
Exact match “The most trusted grading & authentication service in the industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 39 contacts → | ||||
Exact match “Ace is a collector- built grading company setting the standard in card grading through precision, craftsmanship and collector-led thinking.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 36 contacts → | ||||
Exact match “CGC is the world's largest third-party grading service for comics, magazines, concert posters and related collectibles.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 23 contacts → | ||||
Exact match “NGC has revolutionized the world of numismatics through its expert and impartial services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 22 contacts → | ||||
Exact match “Bullion Shark Coin Dealer is the leading Rare Coin Dealer for certified and graded Rare Coins.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 19 contacts → | ||||
Exact match “Before CAC, the market lacked confidence as solid quality coins got lumped together with their lesser quality counterparts.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 14 contacts → | ||||
Exact match “Collectors Alliance Inc is a consumer goods company based out of 1942 Swarthmore Ave, Lakewood, New Jersey, United States.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 13 contacts → | ||||
Exact match “Break & Company Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 10 contacts → | ||||
Exact match “PGS Gold & Coin is a locally owned, family-operated business established in 2008.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 9 contacts → | ||||
Exact match “PMG has revolutionized the world of collectible paper money through its expert and impartial services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 8 contacts → | ||||
Exact match “The McGuire Group LLC is the DC metro regions only auctioneer specializing in numismatics.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 7 contacts → | ||||
Exact match “Founded in 1955, the Professional Numismatists Guild is a nonprofit organization composed of many of the country's top rare coin and paper money experts who undergo a background…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 7 contacts → | ||||
Exact match “We buy, sell and auction certified U.S.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 5 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 4 contacts → | ||||
Exact match “American Federal Rare Coin & Bullion started out primarily as a wholesale dealer in the early 80’s.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 4 contacts → | ||||
Exact match “We are the Clear Choice in Comic Book Grading!” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 3 contacts → | ||||
Exact match “As an online coin dealer, The Happy Coin aims to provide a relaxing, enjoyable, informative, competitive and rewarding shopping or browsing experience.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 3 contacts → | ||||
Exact match “Diamond Service Grading (DSG) is a trusted card grading & authentication service with vast expertise and experience in the sports and gaming collectibles world.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 3 contacts → | ||||
Exact match “At 2a, we’re experienced authenticators who know how to price, grade and validate a product’s authenticity.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 3 contacts → | ||||
Exact match “The Grading Authority is a New England-based card grading company, for collectors, by collectors.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 3 contacts → | ||||
Exact match “Collector Archive Services is a grading company that services collectors worldwide.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 2 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 2 contacts → | ||||
Exact match “Selling coin collections is a hassle that often results in a disappointing price for your coins.” Recorded in the RevenueBase company graph · Nov 6, 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 “coin grading services”. 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 92 coin grading services worldwide
See the full list, filter by size, metro and specialty, and access 1,148 tracked professional contacts with verified work emails. Direct dials are available where recorded.
Free signup · no credit card
Coin grading services worldwide at a glance
As of Nov 6, 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 coin grading services are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “coin grading services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every displayed company carries at least one verified work email. RevenueBase tracks 1,148 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on November 6, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Coin grading services by location
1 lists · largest firstEvery Coin grading services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “coin grading services”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many coin grading services are there worldwide?
RevenueBase identified 92 company matches for coin grading services worldwide as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
Collectors tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most coin grading services?
The United States leads with 61 companies. Every coin grading services list by country and city is linked on this page.
Which city has the most coin grading services?
London leads with 3 company records, followed by Sarasota (3) and Beverly Hills (2).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,148 professional contacts with verified work emails tracked across these 92 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.
Ready to reach these companies? Verified emails and direct dials for all 92 coin grading services 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 coin grading services worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 92 matching company records for coin grading services worldwide, with 1,994 tracked contacts and 1,148 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: November 6, 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 coin grading services 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 |  Collectorscollectors.comHQ: Santa Ana, CA, United StatesReported employees: 1,001-5,000 | Santa Ana, CA, United States | 1,001-5,000 | Exact match | 1,208 contacts → |
“Collectors is the leading creator of innovative technology that provides value-added services for collectors worldwide.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Certified Collectibles Groupcollectiblesgroup.comHQ: Sarasota, United StatesReported employees: 501-1,000 | Sarasota, United States | 501-1,000 | Exact match | 192 contacts → |
“The Certified Collectibles Group is a global provider of expert and impartial authentication and grading services for collectibles.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  SGCgosgc.comHQ: Boca Raton, FL, United StatesReported employees: 51-200 | Boca Raton, FL, United States | 51-200 | Exact match | 65 contacts → |
“The most trusted grading & authentication service in the industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  ACE Gradingacegrading.comHQ: United StatesReported employees: 51-200 | United States | 51-200 | Exact match | 39 contacts → |
“Ace is a collector- built grading company setting the standard in card grading through precision, craftsmanship and collector-led thinking.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Cgc, A Certified Collectibles Group Companycgcgrading.comHQ: Sarasota, FL, United StatesReported employees: 51-200 | Sarasota, FL, United States | 51-200 | Exact match | 36 contacts → |
“CGC is the world's largest third-party grading service for comics, magazines, concert posters and related collectibles.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Ngc, A Certified Collectibles Group Companyngccoin.comHQ: Sarasota, United StatesReported employees: 51-200 | Sarasota, United States | 51-200 | Exact match | 23 contacts → |
“NGC has revolutionized the world of numismatics through its expert and impartial services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Bullion Sharkbullionsharks.comHQ: Old Westbury, NY, United StatesReported employees: 11-50 | Old Westbury, NY, United States | 11-50 | Exact match | 22 contacts → |
“Bullion Shark Coin Dealer is the leading Rare Coin Dealer for certified and graded Rare Coins.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  CAC Gradingcacgrading.comHQ: Virginia Beach, VA, United StatesReported employees: 51-200 | Virginia Beach, VA, United States | 51-200 | Exact match | 19 contacts → |
“Before CAC, the market lacked confidence as solid quality coins got lumped together with their lesser quality counterparts.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Collectors Alliance INCcollectorsalliance.comHQ: Lakewood, NJ, United StatesReported employees: 11-50 | Lakewood, NJ, United States | 11-50 | Exact match | 14 contacts → |
“Collectors Alliance Inc is a consumer goods company based out of 1942 Swarthmore Ave, Lakewood, New Jersey, United States.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Break & Companybreak.co.krHQ: Seoul, South KoreaReported employees: 51-200 | Seoul, South Korea | 51-200 | Exact match | 13 contacts → |
“Break & Company Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  PGS Gold & Coinpgsgoldandcoin.comHQ: Palatine, IL, United StatesReported employees: 11-50 | Palatine, IL, United States | 11-50 | Exact match | 10 contacts → |
“PGS Gold & Coin is a locally owned, family-operated business established in 2008.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Pmg, A Certified Collectibles Group Companypmgnotes.comHQ: Sarasota, United StatesReported employees: 11-50 | Sarasota, United States | 11-50 | Exact match | 9 contacts → |
“PMG has revolutionized the world of collectible paper money through its expert and impartial services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  The Mcguire Group LLCthemcguiregroupllc.comHQ: Falls Church, VA, United StatesReported employees: 1-10 | Falls Church, VA, United States | 1-10 | Exact match | 8 contacts → |
“The McGuire Group LLC is the DC metro regions only auctioneer specializing in numismatics.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Professional Numismatists Guild PNGpngdealers.orgHQ: Temecula, CA, United StatesReported employees: 1-10 | Temecula, CA, United States | 1-10 | Exact match | 7 contacts → |
“Founded in 1955, the Professional Numismatists Guild is a nonprofit organization composed of many of the country's top rare coin and paper money experts who undergo a background…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  David Lawrence Rare Coinsdavidlawrence.comHQ: Virginia Beach, VA, United StatesReported employees: 11-50 | Virginia Beach, VA, United States | 11-50 | Exact match | 7 contacts → |
“We buy, sell and auction certified U.S.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Nashcardsnashcards.com HQ: Mt. Juliet, TN, United StatesReported employees: 1-10 | Mt. Juliet, TN, United States | 1-10 | Exact match | 5 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 17 |  American Federal Coin & Bullionamericanfederal.comHQ: Carefree, AZ, United StatesReported employees: 1-10 | Carefree, AZ, United States | 1-10 | Exact match | 4 contacts → |
“American Federal Rare Coin & Bullion started out primarily as a wholesale dealer in the early 80’s.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Cbcs Comicscbcscomics.com HQ: Plano, TX, United StatesReported employees: 11-50 | Plano, TX, United States | 11-50 | Exact match | 4 contacts → |
“We are the Clear Choice in Comic Book Grading!” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  The Happy Cointhehappycoin.comHQ: Cos Cob, CT, United StatesReported employees: 1-10 | Cos Cob, CT, United States | 1-10 | Exact match | 3 contacts → |
“As an online coin dealer, The Happy Coin aims to provide a relaxing, enjoyable, informative, competitive and rewarding shopping or browsing experience.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Diamond Service Grading INCdsggrading.comHQ: Rohnert Park, CA, United StatesReported employees: 11-50 | Rohnert Park, CA, United States | 11-50 | Exact match | 3 contacts → |
“Diamond Service Grading (DSG) is a trusted card grading & authentication service with vast expertise and experience in the sports and gaming collectibles world.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | HQ: Montreal, QC, CanadaReported employees: 11-50 | Montreal, QC, Canada | 11-50 | Exact match | 3 contacts → |
“At 2a, we’re experienced authenticators who know how to price, grade and validate a product’s authenticity.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  The Grading Authoritytgacards.comHQ: Chichester, NH, United StatesReported employees: 11-50 | Chichester, NH, United States | 11-50 | Exact match | 3 contacts → |
“The Grading Authority is a New England-based card grading company, for collectors, by collectors.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Collector Archive Servicescollectorarchive.comHQ: West Palm Beach, FL, United StatesReported employees: 11-50 | West Palm Beach, FL, United States | 11-50 | Exact match | 3 contacts → |
“Collector Archive Services is a grading company that services collectors worldwide.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Action Figure Authority, INCcgagrading.com HQ: Roswell, GA, United StatesReported employees: 11-50 | Roswell, GA, United States | 11-50 | Exact match | 2 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 25 |  Coinfullycoinfully.comHQ: Charlotte, NC, United StatesReported employees: 1-10 | Charlotte, NC, United States | 1-10 | Exact match | 2 contacts → |
“Selling coin collections is a hassle that often results in a disappointing price for your coins.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 92 company matches
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Coin grading services: dataset insights
November 6, 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
91 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 92 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: November 6, 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 ↗
Coin grading services by location
1 lists · largest firstEvery Coin grading services 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 coin grading services?
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 coin grading services did RevenueBase find worldwide?
The saved snapshot records 92 matching company records, 1,994 tracked contacts and 1,148 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: November 6, 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 coin grading services worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/coin-grading-services.
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 coin grading services worldwide
RevenueBase records 92 matching company records for coin grading services worldwide, with 1,994 tracked contacts and 1,148 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: November 6, 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 coin grading services 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 | Collectorscollectors.com HQ: Santa Ana, CA, United StatesReported employees: 1,001-5,000 | Santa Ana, CA, United States | 1,001-5,000 | Exact match | 1,208 contacts → |
“Collectors is the leading creator of innovative technology that provides value-added services for collectors worldwide.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Certified Collectibles Groupcollectiblesgroup.com HQ: Sarasota, United StatesReported employees: 501-1,000 | Sarasota, United States | 501-1,000 | Exact match | 192 contacts → |
“The Certified Collectibles Group is a global provider of expert and impartial authentication and grading services for collectibles.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | SGCgosgc.com HQ: Boca Raton, FL, United StatesReported employees: 51-200 | Boca Raton, FL, United States | 51-200 | Exact match | 65 contacts → |
“The most trusted grading & authentication service in the industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | ACE Gradingacegrading.com HQ: United StatesReported employees: 51-200 | United States | 51-200 | Exact match | 39 contacts → |
“Ace is a collector- built grading company setting the standard in card grading through precision, craftsmanship and collector-led thinking.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Cgc, A Certified Collectibles Group Companycgcgrading.com HQ: Sarasota, FL, United StatesReported employees: 51-200 | Sarasota, FL, United States | 51-200 | Exact match | 36 contacts → |
“CGC is the world's largest third-party grading service for comics, magazines, concert posters and related collectibles.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Ngc, A Certified Collectibles Group Companyngccoin.com HQ: Sarasota, United StatesReported employees: 51-200 | Sarasota, United States | 51-200 | Exact match | 23 contacts → |
“NGC has revolutionized the world of numismatics through its expert and impartial services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Bullion Sharkbullionsharks.com HQ: Old Westbury, NY, United StatesReported employees: 11-50 | Old Westbury, NY, United States | 11-50 | Exact match | 22 contacts → |
“Bullion Shark Coin Dealer is the leading Rare Coin Dealer for certified and graded Rare Coins.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | CAC Gradingcacgrading.com HQ: Virginia Beach, VA, United StatesReported employees: 51-200 | Virginia Beach, VA, United States | 51-200 | Exact match | 19 contacts → |
“Before CAC, the market lacked confidence as solid quality coins got lumped together with their lesser quality counterparts.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Collectors Alliance INCcollectorsalliance.com HQ: Lakewood, NJ, United StatesReported employees: 11-50 | Lakewood, NJ, United States | 11-50 | Exact match | 14 contacts → |
“Collectors Alliance Inc is a consumer goods company based out of 1942 Swarthmore Ave, Lakewood, New Jersey, United States.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Break & Companybreak.co.kr HQ: Seoul, South KoreaReported employees: 51-200 | Seoul, South Korea | 51-200 | Exact match | 13 contacts → |
“Break & Company Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | PGS Gold & Coinpgsgoldandcoin.com HQ: Palatine, IL, United StatesReported employees: 11-50 | Palatine, IL, United States | 11-50 | Exact match | 10 contacts → |
“PGS Gold & Coin is a locally owned, family-operated business established in 2008.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Pmg, A Certified Collectibles Group Companypmgnotes.com HQ: Sarasota, United StatesReported employees: 11-50 | Sarasota, United States | 11-50 | Exact match | 9 contacts → |
“PMG has revolutionized the world of collectible paper money through its expert and impartial services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | The Mcguire Group LLCthemcguiregroupllc.com HQ: Falls Church, VA, United StatesReported employees: 1-10 | Falls Church, VA, United States | 1-10 | Exact match | 8 contacts → |
“The McGuire Group LLC is the DC metro regions only auctioneer specializing in numismatics.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Professional Numismatists Guild PNGpngdealers.org HQ: Temecula, CA, United StatesReported employees: 1-10 | Temecula, CA, United States | 1-10 | Exact match | 7 contacts → |
“Founded in 1955, the Professional Numismatists Guild is a nonprofit organization composed of many of the country's top rare coin and paper money experts who undergo a background…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | David Lawrence Rare Coinsdavidlawrence.com HQ: Virginia Beach, VA, United StatesReported employees: 11-50 | Virginia Beach, VA, United States | 11-50 | Exact match | 7 contacts → |
“We buy, sell and auction certified U.S.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Nashcardsnashcards.com HQ: Mt. Juliet, TN, United StatesReported employees: 1-10 | Mt. Juliet, TN, United States | 1-10 | Exact match | 5 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 17 | American Federal Coin & Bullionamericanfederal.com HQ: Carefree, AZ, United StatesReported employees: 1-10 | Carefree, AZ, United States | 1-10 | Exact match | 4 contacts → |
“American Federal Rare Coin & Bullion started out primarily as a wholesale dealer in the early 80’s.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Cbcs Comicscbcscomics.com HQ: Plano, TX, United StatesReported employees: 11-50 | Plano, TX, United States | 11-50 | Exact match | 4 contacts → |
“We are the Clear Choice in Comic Book Grading!” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | The Happy Cointhehappycoin.com HQ: Cos Cob, CT, United StatesReported employees: 1-10 | Cos Cob, CT, United States | 1-10 | Exact match | 3 contacts → |
“As an online coin dealer, The Happy Coin aims to provide a relaxing, enjoyable, informative, competitive and rewarding shopping or browsing experience.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Diamond Service Grading INCdsggrading.com HQ: Rohnert Park, CA, United StatesReported employees: 11-50 | Rohnert Park, CA, United States | 11-50 | Exact match | 3 contacts → |
“Diamond Service Grading (DSG) is a trusted card grading & authentication service with vast expertise and experience in the sports and gaming collectibles world.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | HQ: Montreal, QC, CanadaReported employees: 11-50 | Montreal, QC, Canada | 11-50 | Exact match | 3 contacts → |
“At 2a, we’re experienced authenticators who know how to price, grade and validate a product’s authenticity.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | The Grading Authoritytgacards.com HQ: Chichester, NH, United StatesReported employees: 11-50 | Chichester, NH, United States | 11-50 | Exact match | 3 contacts → |
“The Grading Authority is a New England-based card grading company, for collectors, by collectors.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Collector Archive Servicescollectorarchive.com HQ: West Palm Beach, FL, United StatesReported employees: 11-50 | West Palm Beach, FL, United States | 11-50 | Exact match | 3 contacts → |
“Collector Archive Services is a grading company that services collectors worldwide.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Action Figure Authority, INCcgagrading.com HQ: Roswell, GA, United StatesReported employees: 11-50 | Roswell, GA, United States | 11-50 | Exact match | 2 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 25 | Coinfullycoinfully.com HQ: Charlotte, NC, United StatesReported employees: 1-10 | Charlotte, NC, United States | 1-10 | Exact match | 2 contacts → |
“Selling coin collections is a hassle that often results in a disappointing price for your coins.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 92 company matches
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Coin grading services: dataset insights
November 6, 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
91 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 92 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: November 6, 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 ↗
Coin grading services by location
1 lists · largest firstEvery Coin grading services 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 coin grading services?
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 coin grading services did RevenueBase find worldwide?
The saved snapshot records 92 matching company records, 1,994 tracked contacts and 1,148 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: November 6, 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 coin grading services worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/coin-grading-services.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗