The 100 companies that would leave the biggest hole in the marketplace seller ecosystem if they disappeared, across Amazon, Walmart Marketplace and TikTok Shop. Scored on sourced data as of November 2026.
About the List
The SmartScout Marketplace 100 ranks the companies that would leave the biggest hole in the marketplace ecosystem if they disappeared: the brands, software, agencies, service providers, financiers and communities that third-party sellers depend on.
It was inspired by the Marketplace Pulse 100, published in November 2020. This is an independent rebuild by SmartScout. It is not affiliated with or endorsed by Marketplace Pulse.
A lot has changed since 2020. Walmart Marketplace and TikTok Shop now have their own ecosystems of partners, so this list covers them alongside Amazon. Social commerce, AI tools and cross-border selling have become categories of their own. About a third of the 2020 names have since been acquired, merged, renamed or shut down.
Instead of editorial judgement, every company is scored on the same five pillars: size, reach, team, influence and capital.
Every input has a source, a date and a status, and readers can check any score in the full dataset.
The Full 100
Scores are 0-100 composites. Change for successors is measured against the best-ranked 2020 predecessor. 'Depends on data' marks companies that would fall out of the 100 if their missing pillars scored at the bottom of their category.
#100 is Levanta (54.98), just ahead of #101 ROI Revolution (54.84). Pirawna (#45) is now part of Power Digital, and A2X (#93) has been part of Cin7 since 2024. All 229 ranked companies, with their pillar scores, are in the full dataset.
What Changed Since 2020
Who Is in the 2026 List
What Happened to the 2020 100
61 of the 100 are new since 2020. Of the 30 returning names, 13 moved up, 16 moved down and 1 held its rank. Another 9 places go to companies that absorbed 2020 names.
Biggest Risers Since 2020
Biggest Fallers Since 2020
The 2020 Names That Are Gone
- Thrasio (2020 #2), the best-known Amazon aggregator, filed for Chapter 11 in February 2024, sold 48 brands to Inversal that December and reportedly wound down in November 2025.
- Deliverr (#10) was bought by Shopify in 2022, then sold to Flexport in June 2023. Flexport is now #8.
- Sellics (#8) merged into Perpetua (#14), which Flywheel Digital bought in 2024. Flywheel is #23.
- CommerceHub (#9) and ChannelAdvisor (#12) combined and became Rithum in December 2023, now #9.
- Bobsled Marketing (#68) became Acadia, now #3: the biggest climb of any 2020 name.
- Juvo+ (#5) and Perch (#32) are now part of Razor Group (#54). Pharmapacks (#13) was liquidated in 2022.
2020 Names Ranked Outside the Top 100
Eleven more 2020 names are not ranked: Shopify is excluded as a storefront platform and Avalara as a general sales-tax and compliance company, rather than marketplace businesses; ShipBob and ShipMonk are excluded as fulfillment providers focused on DTC brands; Wyze Labs's marketplace share could not be confirmed; and ecomdash, Orca Pacific, One World Direct, Etail Solutions, OMG Commerce and the Jason & Scot Show did not pass the marketplace-focus test.
Categories, Then and Now
Management tools and advertising made up nearly half of the 2020 list. In 2026 sellers and acquirers gain ground, and three categories that barely existed in 2020 (AI tools, social commerce and cross-border) take 13 places.
Methodology
Eligibility. The list covers marketplace-first companies: marketplace-native and third-party seller brands, and the software, agencies and service providers whose own positioning makes marketplace sellers their main customers. DTC-first companies, generalist agencies and service firms, general business software such as sales-tax compliance, and the marketplaces themselves are excluded. Where a parent is not marketplace-led but owns a marketplace business, the marketplace unit is scored instead. 427 companies were reviewed and 229 are ranked.
Categories. Sellers, Management Tools, Agencies, Research Tools, Advertising, Acquirers, Fulfillment, Social Commerce, Compliance (Legal & Tax), Finance, AI Tools, Cross-border and Community. There are no category quotas: the 100 is a straight top 100 by score.
Data as of November 2026; inputs were collected on November 10 and 11, 2026.
Capital carries a deliberately small weight. Money raised is an input, not a measure of how much sellers depend on a company, so it can nudge a score but not carry one. Exact weights (33.53, 27.94, 16.76, 16.76 and 5) are in the dataset.
Scoring. Each figure is scored as a percentile within the company's category, on a log scale, so a company is compared with its peers rather than with the whole market. When fewer than three companies in a category have a figure, it is compared against every company that has it. Figures are averaged into pillars, and pillars into a 0-100 score.
No imputation. A missing figure is never guessed. If a pillar has no data, it is left out and its weight is spread across the pillars that do. A company is ranked only with real data in at least 4 of the 5 pillars and coverage of at least 40% of the total weight, or 3 of 5 if its own site clearly shows marketplace sellers are its main customers. Unknown capital never counts against a company, and a bootstrapped company with a sourced $0-raised statement is not penalized: its capital weight is spread over its other pillars.
Tie-break. Ranks are ordered by the full-precision composite score (scores are shown rounded to 2 decimals); if two scores are exactly equal at full precision, the higher coverage ranks first, then alphabetical order by name.
Self-claimed figures. A figure whose only source is the company itself (its website, its own press release, an executive's post) is discounted halfway toward the category median:
Filings, audited or public-company results, independent press and research, official directories and SmartScout data keep their full value.
Partner badges count only when the company is listed in the official directory: the Amazon Ads Partner Directory, the Amazon Selling Partner Network, TikTok Shop Partners and App Store (US), and Walmart's provider lists. A badge shown only on a company's own site counts for nothing. Of 41 such claims checked, 29 were confirmed.
Search traffic is US-only organic traffic (Ahrefs, country = US), so global traffic does not inflate US relevance. Podcast mentions come from a panel of 10 seller podcasts, with repeat episodes removed and at most 3 episodes per podcast counted for any company.
Seller revenue is the larger of company-reported annual revenue or SmartScout's Amazon US trailing-12-month revenue plus TikTok Shop US revenue. Records with clear data errors were excluded.
Currency. Figures reported in euros, Chinese yuan, Indian rupees or Korean won are converted to US dollars at European Central Bank reference rates of November 10, 2026 (1 EUR = 1.1214 USD; 1 USD = 6.6703 CNY, 93.9286 INR or 1,339.0 KRW) and scored in dollars, the same way for every company. The original-currency figure is kept in the dataset for reference.
Editorial inclusions. Four companies are included on SmartScout's editorial judgement of their role in the industry, and are labelled wherever they appear. Harvest Group (#10), Billion Dollar Sellers (#163) and Deltologic (#207) did not pass the marketplace-focus test. Keepa (#29) is included with one extra input. All four are otherwise scored by the same rules as everyone else.
Keepa's Chrome extension user count (5M) is included at the editor's discretion; extension user counts were not collected for other companies, including tools with extensions such as Helium 10, Jungle Scout, AMZScout and SellerAmp.
Known Limitations
- Scores are relative to each category, so a company in a small category (AI Tools, Social Commerce, Cross-border) can score higher than a similar company in a crowded one.
- Customer counts are not like-for-like: brands, sellers, members, subscribers and users are counted as each company reports them.
- Some ranks rest on 3 or 4 of the 5 pillars. The full dataset shows each company's score range if its missing data were at the bottom or top of its category.
- Traffic, follower and headcount figures are point-in-time estimates from third-party tools.
- SmartScout's revenue estimates cover Amazon US and TikTok Shop US, not Walmart.
Disclosure and Corrections
Disclosure. SmartScout publishes this list and appears in it at #86 (score 57.44), scored by exactly the same rules as every other company. Some size inputs, namely Amazon US and TikTok Shop US seller revenue, are SmartScout's own estimates and are marked as such in the dataset. SmartScout's own podcast is not counted as a podcast mention. Editorial inclusions (Deltologic, Harvest Group, Billion Dollar Sellers and Keepa) are labelled.
Corrections are welcome. Send any correction with a verifiable public source to [corrections contact]. Corrections are applied by the same rules to every company.











