Company lists · Data refreshed September 2026
Top 25 Upsell and cross-sell platforms worldwide
RevenueBase identified 1,405 upsell and cross-sell platforms worldwide as of September 2026 and tracks 36,569 professional contacts across them, including 17,228 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.
This list covers upsell and cross-sell platforms worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 29, 2026. Country and city lists for upsell and cross-sell platforms follow the table.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 upsell and cross-sell platforms worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 11,077 contacts → | ||||
Partial evidence “HubSpot is a leading agentic customer platform that provides software and support to help businesses grow better.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 2,789 contacts → | ||||
Indirect evidence “Klaviyo (NYSE: KVYO) is the autonomous B2C CRM.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 2,412 contacts → | ||||
Partial evidence “Thryv is an AI-powered platform built to help small businesses get found, win customers, and drive repeat sales.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,443 contacts → | ||||
Indirect evidence “6sense is on a mission to revolutionize the way B2B organizations create revenue by predicting customers most likely to buy and recommending the best course of action to engage…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 936 contacts → | ||||
Indirect evidence “Highspot helps companies around the world turn go-to-market strategy into consistent, revenue-driving execution.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 831 contacts → | ||||
Indirect evidence “SAP Engagement Cloud (formerly SAP Emarsys) helps organizations power unique engagement by connecting real-time customer insights with the operational signals that run the…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 771 contacts → | ||||
Indirect evidence “Vendasta is the leading AI software company for customer acquisition and engagement, helping businesses get more customers.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 702 contacts → | ||||
Partial evidence “CleverTap is the leading all-in-one customer engagement platform that helps brands unlock limitless customer lifetime value.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 622 contacts → | ||||
Indirect evidence “ON24, a Cvent company, is on a mission to help businesses bring their go-to-market strategy into the AI era and drive cost-effective revenue growth.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 576 contacts → | ||||
Partial evidence “SugarAI: the CRM that actually helps sellers sell.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 481 contacts → | ||||
Indirect evidence “A CRMBonus é uma plataforma que utiliza dados e inteligência artificial para maximizar as relações de empresas com seus clientes, transformando cada interação em mais geração de…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 452 contacts → | ||||
Partial evidence “The Swiss software company BSI Software designs, develops, and sells market-leading European CRM and CX software that is not only technologically exceptional but also…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 227 contacts → | ||||
Partial evidence “Planhat is a customer platform where commercial teams work better.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 194 contacts → | ||||
Indirect evidence “Help your teams align to your customer’s journey by uniting your CRM data, signals, and tools from the first buying signal to closed-won and beyond.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 180 contacts → | ||||
Indirect evidence “Exact Sales por RD Station é a maior empresa de Sales Engagement da América Latina, com mais de usuários que confiam em seu software, o Exact Spotter.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 175 contacts → | ||||
Indirect evidence “The future of business is CRM + AI + Data + Trust.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 174 contacts → | ||||
Partial evidence “MACROKIOSK is an enterprise solutions platform market leader in Asia, helping businesses of all sizes and industries to acquire, grow and retain customers effectively with BOLD.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 171 contacts → | ||||
Indirect evidence “Bij JEX ontwikkelen we een salesplatform dat B2B-bedrijven helpt om structureel nieuwe klanten te realiseren.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 165 contacts → | ||||
Indirect evidence “Dito is a technology company that was born to revolutionize the engagement experience between brands and people.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 163 contacts → | ||||
Indirect evidence “Convertcart helps online businesses deliver outstanding experiences to customers throughout their journey-build lasting relations with them-and drive more revenue.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 160 contacts → | ||||
Indirect evidence “Plexure was founded in 2010 and has grown to power mobile engagement for over 320 million users in 60+ countries and 40 languages.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 146 contacts → | ||||
Partial evidence “Maximizer is a trusted Canadian CRM platform built to help financial services and sales professionals grow relationships, drive results, and stay ahead of the curve.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 146 contacts → | ||||
Indirect evidence “Desde 2016, Leal ha impulsado el crecimiento de más de 700 empresas latinoamericanas, creando relaciones exitosas entre las marcas y sus clientes.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 142 contacts → | ||||
Partial evidence “Rallyware’s all-in-one platform transforms every seller into a top performer.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 124 contacts → | ||||
Indirect evidence “Clerk.io helps online stores make more money from the traffic they already have.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: upsell and cross-sell platforms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names upsell and cross-sell platforms.
- Partial evidence
- Its own public description names part of upsell and cross-sell platforms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name upsell and cross-sell platforms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 1,405 upsell and cross-sell platforms worldwide
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Upsell and cross-sell platforms worldwide at a glance
As of Sep 29, 2026Companies by employee count
Email recency is reported on each country list linked below.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among upsell and cross-sell platforms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- Coverage
- Every country. Country and city lists for upsell and cross-sell platforms are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “upsell and cross-sell platforms”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names upsell and cross-sell platforms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among upsell and cross-sell platforms, and records with no verified work email.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- 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 listed company carries at least one verified work email, 17,228 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 29, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Upsell and cross-sell platforms by location
10 lists · largest firstEvery Upsell and cross-sell platforms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Upsell and cross-sell platforms based in the United States347
- Upsell and cross-sell platforms based in Brazil128
- Upsell and cross-sell platforms based in India73
- Upsell and cross-sell platforms based in the United Kingdom49
- Upsell and cross-sell platforms based in Canada41
- Upsell and cross-sell platforms based in Germany41
- Upsell and cross-sell platforms based in France33
Cities
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names upsell and cross-sell platforms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many upsell and cross-sell platforms are there worldwide?
RevenueBase identified 1,405 upsell and cross-sell platforms worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Hubspot, headquartered in Cambridge, tops this list with the largest team on record.
Which country has the most upsell and cross-sell platforms?
The United States leads with 347 companies, followed by Brazil (128) and India (73). Every upsell and cross-sell platforms list by country and city is linked on this page.
Which city has the most upsell and cross-sell platforms?
Sao Paulo leads with 34 headquartered companies, followed by London (31) and New York (28).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 17,228 verified decision-maker contacts tracked across these 1,405 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 29, 2026.
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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 Smart Search, 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.