Company lists · Data refreshed September 2026
Top 25 Upsell and cross-sell software companies based in the United States
RevenueBase identified 300 upsell and cross-sell software companies headquartered in the United States as of September 2026 and tracks 18,005 professional contacts across them, including 10,527 with verified work emails. San Francisco is the largest hub.
This list covers upsell and cross-sell software companies headquartered in the United States, 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.
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 software companies based in the United States
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 | 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. | |||||
| 3 | 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. | |||||
| 4 | 357 contacts → | ||||
Indirect evidence “CallidusCloud is now SAP Sales Cloud, part of the SAP Customer Experience division of SAP.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 227 contacts → | ||||
Indirect evidence “Planhat is a customer platform where commercial teams work better.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 206 contacts → | ||||
Indirect evidence “Allego is the first and only Revenue Enablement Platform to lead across digital selling, content management, learning, and coaching.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 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. | |||||
| 8 | 182 contacts → | ||||
Indirect evidence “Buxton is changing the way organizations compete and grow by providing tools and insights that put customers at the center of their decision-making strategies.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 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. | |||||
| 10 | 142 contacts → | ||||
Indirect 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. | |||||
| 11 | 133 contacts → | ||||
Partial evidence “Exigo revolutionizes the direct selling industry by delivering cutting-edge software solutions for unparalleled scalability, customizability, and data-driven decision-making.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 108 contacts → | ||||
Indirect evidence “Revenue Analytics transforms complex data into a competitive advantage.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 103 contacts → | ||||
Partial evidence “SalesRabbit is the leading developer of software services for door-to-door and field sales teams.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 92 contacts → | ||||
Indirect evidence “At Altify, we empower B2B sales teams to win bigger, faster, and more predictably with our AI-enhanced, 100% Salesforce-native solutions.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 62 contacts → | ||||
Indirect evidence “BlastPoint, Inc, is a B2B provider of customer intelligence and analytics solutions that companies across sectors rely on to optimize revenue growth.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 60 contacts → | ||||
Indirect evidence “Xfactor.io is the GrowthAI platform built for executives who refuse to rely on guesswork.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 53 contacts → | ||||
Indirect evidence “White Cup CRM + BI makes it easy for your entire customer-facing team to prioritize outreach and collaborate to increase revenue.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 48 contacts → | ||||
Indirect evidence “Sendcrux labs is building sales and marketing automation tools to help organisations to achieve the following goals cost-effectively- Boost revenues- Lead Generation- Nurture…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 43 contacts → | ||||
Indirect evidence “diio empowers consultative selling companies by revolutionizing how they manage and operate their sales teams all powered by advanced artificial intelligence.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 38 contacts → | ||||
Indirect evidence “MetroGuild is an innovative early stage start-up solving the real everyday problems of enterprise sales teams.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 36 contacts → | ||||
Indirect evidence “DYL empowers businesses with the all tools needed to convert prospects into sales and customers into loyal fans.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 35 contacts → | ||||
Indirect evidence “WebPresented, LLC helps organizations and individuals create value using smart technology solutions that marry with business processes.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 32 contacts → | ||||
Indirect evidence “Our mission is to provide ingenious solutions to your complex business problems.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 28 contacts → | ||||
Indirect evidence “Conclusive Analytics, a wholly-owned subsidiary of Marketing Associates, provides analytic-driven sales and marketing solutions which enable our customers to grow revenue and…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 27 contacts → | ||||
Partial evidence “WayMore is an innovative and powerful marketing and business operations automation software that enables a company to reach its goals.” 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 software companies. 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 software companies.
- Partial evidence
- Its own public description names part of upsell and cross-sell software companies, 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 software companies. 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 300 upsell and cross-sell software companies based in the United States
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Upsell and cross-sell software companies based in the United States at a glance
As of Sep 29, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 300 companies.
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 software companies, 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.
- What qualifies
- Companies headquartered in the United States whose own description of what they do matches “upsell and cross-sell software companies”. 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 software companies), 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 software companies, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
- 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, 10,527 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.
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 software companies, 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 software companies are there based in the United States?
RevenueBase identified 300 upsell and cross-sell software companies headquartered in the United States 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 city has the most upsell and cross-sell software companies?
San Francisco leads with 16 headquartered companies, followed by New York (11) and Los Angeles (10).
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 10,527 verified decision-maker contacts tracked across these 300 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.
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