What Stamp World does

StampWorld (legally Stampworld ApS) operates a global online stamp catalogue and marketplace platform headquartered in Ikast, Denmark. The platform hosts a comprehensive catalogue of 750,000+ stamps with 700,000+ color pictures, organized by country and region across 200+ territories in Europe, North America, South America, Africa, Asia, and Oceania. Supporting features include advanced multi-attribute search (year 1840-2027, color, denomination, currency, 50+ themes, and locations), member profiles with personal collections, a community forum, club and dealer directories, auction listings, and postal service listings. The marketplace currently lists 9,637,756+ stamps for sale, with 432 new listings and 9 new members added daily, and the platform reports 715,370 registered members in total.

The platform is built on user-generated content with volunteer moderators contributing stamp information, pictures, variants, plates, forgeries, and translations to maintain catalogue quality. StampWorld monetizes through three primary streams: (1) a 5% seller transaction fee on annual sales exceeding $1,000 USD, invoiced quarterly when above $20; (2) auto-renewing premium subscriptions for extended benefits; and (3) third-party advertising via Google, Freestar, and 170+ ad partner networks. Free registration provides catalogue browsing, profile creation, and basic community features, while paid features and selling capabilities require subscription. Payment processing is handled by SafeCharge, newsletter distribution by iContact, and security/performance infrastructure by Cloudflare.

The customer base spans individual stamp collectors (primary segment), stamp dealers, stamp clubs, auction houses, and postal services. Operating geographies span the globe with no geographic restrictions. The company is privately held with no disclosed venture capital backing, parent company, or funding rounds, and appears to operate as a bootstrapped niche hobbyist marketplace established in 1992.

Name

Stamp World

Legal name

Stampworld ApS

Website

https://stampworld.com

Company type

Private

Founded year

1992

Operating status

Operating

Headcount range

11–50 employees

Short description

StampWorld operates a global online stamp catalogue and marketplace serving 715,000+ individual collectors, dealers, clubs, and auction houses with 750,000+ catalogued stamps and 9.6M+ stamps listed for sale.

Ownership category

akta.pro rank

Product category

Online Philatelic Marketplace

NAICS

Greeting Card Publishers (513191)

SIC

Wholesale-Paper & Paper Products (5110)

akta.pro primary industry

Greeting Cards, Gift Wrap & Party Paper Goods Distribution (CRAOALAJ)

Keywords

• Online stamp catalogue
• Philatelic marketplace
• Stamp collector community
• Buy sell stamps
• Stamp reference database

Headquarters

HQ city

Littleton

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Digital Commerce or Content

Cost components

Technology or R&D, Infrastructure, Personnel, Marketing or Sales, Operations

Revenue model

1. Seller Transaction Fee: StampWorld charges a Seller Fee of 5% of annual sales amounting to more than $1,000. No fee is charged for the first $1,000 of sales in a given year. The fee is applied to all additional sales in the period and is invoiced quarterly if the amount exceeds $20.
2. Subscription Services: Members have the option to subscribe to services on StampWorld.com to get extended benefits. Subscriptions are consecutive and auto-renew. Pre-paid subscriptions cannot be canceled.
3. Advertising: Third-party advertising through Google and approximately 170+ advertising partners including various ad networks and platforms. Uses Freestar for advertising placement and cookies for ad targeting.

Pricing tiers

Go-to-market motion2 records

Distribution channels1 record

Marketing channels5 records

Core offering

Stampworld runs a global online stamp catalogue covering 750,000+ stamps with 700,000+ color pictures, layered with an integrated marketplace where members list 9.6M+ stamps for sale. The platform also provides free member profiles, a community stamp forum, club/dealer/auction directories, and advanced searchable filters, monetized through premium subscriptions, a 5% seller fee on annual sales over $1,000, and advertising.

Product overview

Stampworld operates as a unified online stamp collecting platform centered on its comprehensive stamp catalogue and marketplace. The core offering consists of the Stampworld Online Catalogue (with 700,000+ color pictures and 750,000+ stamps) paired with an integrated Stamp Marketplace (9.6M+ stamps for sale). Supporting features include Member Profiles for managing personal collections, a Stamp Forum for community discussions, and a Club Directory for finding stamp organizations. The Advanced Search feature allows filtering across countries, years, colors, denominations, themes, and locations. The platform also maintains directories for stamp dealers, auctions, postal services, and philatelist organizations.

Differentiator

Problem solved

Functional benefit

Products and services

• Stampworld Online Catalogue Comprehensive web-based stamp catalogue covering stamps from countries worldwide, with over 750,000+ catalogued stamps and 700,000+ color pictures organized by country/region. Free to browse for any registered member; usable by hobbyists and dealers for reference, identification, and valuation.
• Stamp Marketplace Integrated buy-and-sell marketplace for stamps with 9,637,756+ listings, seller storefronts, and direct buyer-to-seller contact. Subject to a 5% seller fee on annual sales over $1,000. Targeted at individual collectors and stamp dealers worldwide.
• Premium Subscription Optional paid subscription product for members that unlocks extended benefits on StampWorld.com. Sold as consecutive, auto-renewing subscriptions that are pre-paid and non-cancellable.

Quantifiable outcome

• 715,370 members actively using the platform
• +1 more outcomes

Segments5 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration2 records

Feature5 records

Partnerships

Five partnerships are on record, tiered minor and core.

• GoogleminorGTM or Marketing PartnerGoogle provides advertising services on StampWorld. Google and their partners have access to cookie data to personalize advertising experience.
• FreestarminorGTM or Marketing PartnerFreestar handles advertising placement on the Site and collects certain data for advertising purposes.
• SafeChargecoreTechnology or IntegrationSafeCharge is the payment provider handling all credit card transactions. Payment information is securely stored by SafeCharge and StampWorld does not receive or store credit card data.
• iContactminorGTM or Marketing PartneriContact handles newsletter distribution. StampWorld saves email address and username on their secure servers for newsletter delivery.
• CloudflarecoreTechnology or IntegrationCloudflare provides security and performance services including DDoS protection and bot management. The company uses Cloudflare to restrict access and manage rate limiting.

Scale indicators6 records

Recent moves6 records

Expansion highlights4 records

Direct peers

• Siegel Auction Galleries: Major US-based philatelic auction house. Competes with StampWorld for serious collector attention and is listed on StampWorld's auction directory.
• Colnect: Online catalogue and marketplace for collectibles including stamps, coins, and banknotes. Closest direct competitor to StampWorld in the user-contributed collectibles catalogue model.
• HipStamp: Dedicated online stamp marketplace connecting collectors and dealers. Competes head-to-head with StampWorld's marketplace functionality for stamp transactions.
• Delcampe: European-based online collectibles marketplace covering stamps, postcards, coins, and militaria. Comparable marketplace and catalogue offering to StampWorld, especially in European markets.
• StampAuctionNetwork: Network aggregating philatelic auctions from major auction houses. Overlaps with StampWorld's auction directory and serves the same stamp collector and dealer audience.
• BidStart: Online marketplace focused on collectibles including stamps, coins, and trading cards. Directly comparable to StampWorld in addressing niche collectibles buyers and sellers.

Broad incumbents

• eBay: General online marketplace with a large stamps and collectibles category. Represents both a competing channel for stamp transactions and a reference point for marketplace scale.
• Etsy: Marketplace for handmade, vintage, and collectible items. Adjacent competitor for collectible and vintage paper goods including stamps among hobbyist buyers.
• Heritage Auctions: Large US auction house covering stamps, coins, comics, and other collectibles. Overlaps with StampWorld on auction listings and high-end philatelic buyers.

Emerging players

• Mystic Stamp Company: US-based stamp dealer and auctioneer with online catalogue and marketplace. Smaller-scope but comparable business combining stamp sales with reference material, like StampWorld.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Facebookstampworld.com/facebook

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Stamp World