Company lists · Data refreshed September 2026
Top 25 Open source marketing automation software companies based in the United States
RevenueBase identified 171 company matches for open source marketing automation software companies associated with the United States as of September 2026 and tracks 3,152 professional contacts across them, including 787 with verified work emails and 625 with mobile numbers. Los Angeles is the largest hub.
This list covers company matches for open source marketing automation software companies associated with the United States, 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 September 5, 2026.
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 open source marketing automation software companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 572 contacts → | ||||
Exact match “Adobe Marketo Engage offers the leading Engagement Platform that empowers marketers to build brand value, grow revenue, and prove impact.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 2 | 210 contacts → | ||||
Exact match “Act-On Software provides the innovative marketing automation platform for marketers who think big and act boldly.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 3 | 192 contacts → | ||||
Exact match “With Keap, you'll easily capture, organize, track, and nurture all of your leads to increase sales and revenue.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 4 | 180 contacts → | ||||
Exact match “SendPulse is an AI-driven marketing platform that helps scaling businesses automate email and chatbot conversations.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 5 | 159 contacts → | ||||
Exact match “RightWave provides Marketing Automation Services for B2B companies.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 6 | 115 contacts → | ||||
Exact match “Benchmark helps busy marketers move faster and make a bigger impact with email.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 7 | 104 contacts → | ||||
Exact match “Genesis Digital empowers entrepreneurs and small business owners to achieve financial freedom with affordable and easy-to-use marketing and sales automation software, and a…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 8 | 72 contacts → | ||||
Exact match “SharpSpring is a full-funnel marketing and sales automation platform that unites marketing and sales teams to launch and track targeted campaigns and personalize every interaction…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 9 | 64 contacts → | ||||
Exact match “The time-saving CRM For sales and marketing teams who want to maximize efficiency and revenue, Nutshell is a CRM and marketing automation platform that saves time and accelerates…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 10 | 64 contacts → | ||||
Exact match “Lead Liaison is an application development company that designs, develops, and sells cloud-based marketing and sales automation software.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 11 | 57 contacts → | ||||
Exact match “EngageBay offers innovative AI-powered marketing and sales tools designed for small to medium-sized businesses.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 12 | 52 contacts → | ||||
Exact match “MAXA is the real estate and mortgage industry's #1 marketing center.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 13 | 48 contacts → | ||||
Exact match “Sendcrux labs is building sales and marketing automation tools to help organisations to achieve the following goals cost-effectively- Boost revenues- Lead Generation- Nurture…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 14 | 37 contacts → | ||||
Exact match “InfiniteChoice was founded on the belief that the innovative use of technology and automation can unlock greater choice and better experiences for customers and partners.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 15 | 36 contacts → | ||||
Exact match “Eloqua, a wholly-owned subsidiary of Oracle, is the leading provider of modern marketing automation and revenue performance management software that helps ensure every component…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 16 | 25 contacts → | ||||
Exact match “Delivra, a Redbrick company, is a sophisticated email platform that designs custom solutions to help marketers and agencies automate highly personalized, event-driven campaigns…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 17 | 25 contacts → | ||||
Exact match “With Volly’s Marketing Automation Suite you can more easily capture, convert, and retain customers.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 18 | 25 contacts → | ||||
Exact match “Mailmunch is the one-stop lead generation and marketing platform that allows you to grow your business with lead capture and email automation tools to reach your audience with a…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 19 | 22 contacts → | ||||
Exact match “Paminga is a marketing automation platform built for Marketing Operations professionals, the people who actually live in the platform, not just buy it.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 20 | 20 contacts → | ||||
Exact match “Justuno is a website marketing automation platform designed to increase leads and revenue for thousands of businesses worldwide.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 21 | 18 contacts → | ||||
Exact match “With the hosted Ethofy Inspired Marketing suite, marketers have a way to recapture their time and repurpose their budget dollars.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 22 | 18 contacts → | ||||
Exact match “Real Magnet is a leading marketing automation platform that helps businesses attract, engage and deliver better email, marketing, social and mobile campaigns.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 23 | 18 contacts → | ||||
Exact match “Halo Programs have been helping Mortgage, Real Estate, and Residential Heating and Cooling companies to cultivate customer relationships for over 50 years.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 24 | 16 contacts → | ||||
Exact match “At Strategic Marketer, we are passionate about providing a complete suite of best-in-class marketing automation software, strategies and support to empower businesses to start up…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 25 | 15 contacts → | ||||
Exact match “We're building the next gen AI marketing automation platform called Singulate.” Recorded in the RevenueBase company graph · Sep 5, 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 “open source marketing automation software companies”. 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 171 open source marketing automation software companies based in the United States
See the full list, filter by size, metro and specialty, and access 787 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Open source marketing automation software companies based in the United States at a glance
As of Sep 5, 2026Companies by employee count
Freshness & accuracy
How recently the business emails on this list were verified
Email last verified
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.
- What qualifies
- Company records associated with the United States whose business descriptions match “open source marketing automation software companies” 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 787 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 September 5, 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.
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 “open source marketing automation software companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many open source marketing automation software companies are there based in the United States?
RevenueBase identified 171 company matches for open source marketing automation software companies associated with the United States as of September 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?
Adobe Marketo tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most open source marketing automation software companies?
Los Angeles leads with 8 company records, followed by New York (6) and Dallas (5).
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 787 professional contacts with verified work emails tracked across these 171 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 September 5, 2026.
Ready to reach these companies? Verified emails and direct dials for all 171 open source marketing automation software companies based in the United States. Start with a free account, no credit card.
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Open source marketing automation software companies by geography
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
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Open source marketing automation software companies based in India
- AI companies based in the United States
- Cybersecurity companies based in the United States
- Manufacturing companies based in the United States
- Media companies based in the United States
- Oil and gas companies based in the United States
Company intelligence · public preview
Top 25 open source marketing automation software companies based in the United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 171 matching company records for open source marketing automation software companies based in the United States, with 3,152 tracked contacts and 787 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: September 5, 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 open source marketing automation software companies based in the United States
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 |  Adobe Marketomarketo.comHQ: San Jose, CA, United StatesReported employees: 1,001-5,000 | San Jose, CA, United States | 1,001-5,000 | Exact match | 572 contacts → |
“Adobe Marketo Engage offers the leading Engagement Platform that empowers marketers to build brand value, grow revenue, and prove impact.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Act-On Softwareact-on.comHQ: Portland, OR, United StatesReported employees: 201-500 | Portland, OR, United States | 201-500 | Exact match | 210 contacts → |
“Act-On Software provides the innovative marketing automation platform for marketers who think big and act boldly.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  KEAPkeap.comHQ: Chandler, AZ, United StatesReported employees: 201-500 | Chandler, AZ, United States | 201-500 | Exact match | 192 contacts → |
“With Keap, you'll easily capture, organize, track, and nurture all of your leads to increase sales and revenue.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Sendpulsesendpulse.comHQ: New York, United StatesReported employees: 51-200 | New York, United States | 51-200 | Exact match | 180 contacts → |
“SendPulse is an AI-driven marketing platform that helps scaling businesses automate email and chatbot conversations.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Rightwaverightwave.comHQ: San Jose, CA, United StatesReported employees: 51-200 | San Jose, CA, United States | 51-200 | Exact match | 159 contacts → |
“RightWave provides Marketing Automation Services for B2B companies.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Benchmark Emailbenchmarkemail.comHQ: St. Louis, MO, United StatesReported employees: 51-200 | St. Louis, MO, United States | 51-200 | Exact match | 115 contacts → |
“Benchmark helps busy marketers move faster and make a bigger impact with email.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Genesis Digital, LLCgenesisdigital.coHQ: Las Vegas, NV, United StatesReported employees: 51-200 | Las Vegas, NV, United States | 51-200 | Exact match | 104 contacts → |
“Genesis Digital empowers entrepreneurs and small business owners to achieve financial freedom with affordable and easy-to-use marketing and sales automation software, and a…” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Constant Contact Lead GEN & CRMconstantcontact.comHQ: Gainesville, FL, United StatesReported employees: 1,001-5,000 | Gainesville, FL, United States | 1,001-5,000 | Exact match | 72 contacts → |
“SharpSpring is a full-funnel marketing and sales automation platform that unites marketing and sales teams to launch and track targeted campaigns and personalize every interaction…” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Nutshellnutshell.comHQ: Ann Arbor, MI, United StatesReported employees: 11-50 | Ann Arbor, MI, United States | 11-50 | Exact match | 64 contacts → |
“The time-saving CRM For sales and marketing teams who want to maximize efficiency and revenue, Nutshell is a CRM and marketing automation platform that saves time and accelerates…” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Lead Liaisonleadliaison.comHQ: Dallas, TX, United StatesReported employees: 11-50 | Dallas, TX, United States | 11-50 | Exact match | 64 contacts → |
“Lead Liaison is an application development company that designs, develops, and sells cloud-based marketing and sales automation software.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Engagebayengagebay.comHQ: Wilmington, DE, United StatesReported employees: 51-200 | Wilmington, DE, United States | 51-200 | Exact match | 57 contacts → |
“EngageBay offers innovative AI-powered marketing and sales tools designed for small to medium-sized businesses.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Maxa Designsmaxadesigns.comHQ: Los Angeles, CA, United StatesReported employees: 51-200 | Los Angeles, CA, United States | 51-200 | Exact match | 52 contacts → |
“MAXA is the real estate and mortgage industry's #1 marketing center.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Sendcrux Labssendcrux.netHQ: Green Cove Springs, FL, United StatesReported employees: 51-200 | Green Cove Springs, FL, United States | 51-200 | Exact match | 48 contacts → |
“Sendcrux labs is building sales and marketing automation tools to help organisations to achieve the following goals cost-effectively- Boost revenues- Lead Generation- Nurture…” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Infinitechoiceinfinitechoice.comHQ: Dallas, TX, United StatesReported employees: 11-50 | Dallas, TX, United States | 11-50 | Exact match | 37 contacts → |
“InfiniteChoice was founded on the belief that the innovative use of technology and automation can unlock greater choice and better experiences for customers and partners.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Eloquaoracle.comHQ: San Francisco, CA, United StatesReported employees: 1,001-5,000 | San Francisco, CA, United States | 1,001-5,000 | Exact match | 36 contacts → |
“Eloqua, a wholly-owned subsidiary of Oracle, is the leading provider of modern marketing automation and revenue performance management software that helps ensure every component…” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Delivradelivra.comHQ: Carmel, IN, United StatesReported employees: 11-50 | Carmel, IN, United States | 11-50 | Exact match | 25 contacts → |
“Delivra, a Redbrick company, is a sophisticated email platform that designs custom solutions to help marketers and agencies automate highly personalized, event-driven campaigns…” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  VOLLYmyvolly.comHQ: Woburn, MA, United StatesReported employees: 51-200 | Woburn, MA, United States | 51-200 | Exact match | 25 contacts → |
“With Volly’s Marketing Automation Suite you can more easily capture, convert, and retain customers.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Mailmunchmailmunch.comHQ: San Francisco, CA, United StatesReported employees: 11-50 | San Francisco, CA, United States | 11-50 | Exact match | 25 contacts → |
“Mailmunch is the one-stop lead generation and marketing platform that allows you to grow your business with lead capture and email automation tools to reach your audience with a…” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Pamingapaminga.comHQ: Denver, CO, United StatesReported employees: 11-50 | Denver, CO, United States | 11-50 | Exact match | 22 contacts → |
“Paminga is a marketing automation platform built for Marketing Operations professionals, the people who actually live in the platform, not just buy it.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Justunojustuno.comHQ: Fairfax, CA, United StatesReported employees: 11-50 | Fairfax, CA, United States | 11-50 | Exact match | 20 contacts → |
“Justuno is a website marketing automation platform designed to increase leads and revenue for thousands of businesses worldwide.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Ethofyethofy.comHQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 18 contacts → |
“With the hosted Ethofy Inspired Marketing suite, marketers have a way to recapture their time and repurpose their budget dollars.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Real Magnetrealmagnet.comHQ: Bethesda, MD, United StatesReported employees: 51-200 | Bethesda, MD, United States | 51-200 | Exact match | 18 contacts → |
“Real Magnet is a leading marketing automation platform that helps businesses attract, engage and deliver better email, marketing, social and mobile campaigns.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Halo Programshaloprograms.comHQ: Walled Lake, MI, United StatesReported employees: 11-50 | Walled Lake, MI, United States | 11-50 | Exact match | 18 contacts → |
“Halo Programs have been helping Mortgage, Real Estate, and Residential Heating and Cooling companies to cultivate customer relationships for over 50 years.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Strategic Marketerstrategicmarketer.comHQ: Jupter, FL, United StatesReported employees: 11-50 | Jupter, FL, United States | 11-50 | Exact match | 16 contacts → |
“At Strategic Marketer, we are passionate about providing a complete suite of best-in-class marketing automation software, strategies and support to empower businesses to start up…” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Singulatesingulate.comHQ: East Coast, United StatesReported employees: 11-50 | East Coast, United States | 11-50 | Exact match | 15 contacts → |
“We're building the next gen AI marketing automation platform called Singulate.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 171 company matches
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Open source marketing automation software companies: dataset insights
September 5, 2026These summaries describe recorded coverage in this saved dataset. Coverage describes records in RevenueBase, rather than a census of every business in this market.
Reported company sizes
171 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Freshness & accuracy
How recently the business emails on this list were verified
Email last verified
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.
Coverage describes records in RevenueBase, rather than a census of every business in this market.
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: September 5, 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 ↗
Questions about this company list
What does Exact match mean for open source marketing automation software companies?
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 open source marketing automation software companies did RevenueBase find based in the United States?
The saved snapshot records 171 matching company records, 3,152 tracked contacts and 787 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: September 5, 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
Open source marketing automation software companies by geography
Cite this list
RevenueBase Data Team. Top 25 open source marketing automation software companies based in the United States. Snapshot: September 5, 2026. https://revenuebase.ai/companies/open-source-marketing-automation-software-companies/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Open source marketing automation software companies based in India
- AI companies based in the United States
- Cybersecurity companies based in the United States
- Manufacturing companies based in the United States
- Media companies based in the United States
- Oil and gas companies based in the United States
Company intelligence · public preview
Top 25 open source marketing automation software companies based in the United States
RevenueBase records 171 matching company records for open source marketing automation software companies based in the United States, with 3,152 tracked contacts and 787 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: September 5, 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 open source marketing automation software companies based in the United States
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 | Adobe Marketomarketo.com HQ: San Jose, CA, United StatesReported employees: 1,001-5,000 | San Jose, CA, United States | 1,001-5,000 | Exact match | 572 contacts → |
“Adobe Marketo Engage offers the leading Engagement Platform that empowers marketers to build brand value, grow revenue, and prove impact.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Act-On Softwareact-on.com HQ: Portland, OR, United StatesReported employees: 201-500 | Portland, OR, United States | 201-500 | Exact match | 210 contacts → |
“Act-On Software provides the innovative marketing automation platform for marketers who think big and act boldly.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | KEAPkeap.com HQ: Chandler, AZ, United StatesReported employees: 201-500 | Chandler, AZ, United States | 201-500 | Exact match | 192 contacts → |
“With Keap, you'll easily capture, organize, track, and nurture all of your leads to increase sales and revenue.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Sendpulsesendpulse.com HQ: New York, United StatesReported employees: 51-200 | New York, United States | 51-200 | Exact match | 180 contacts → |
“SendPulse is an AI-driven marketing platform that helps scaling businesses automate email and chatbot conversations.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Rightwaverightwave.com HQ: San Jose, CA, United StatesReported employees: 51-200 | San Jose, CA, United States | 51-200 | Exact match | 159 contacts → |
“RightWave provides Marketing Automation Services for B2B companies.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Benchmark Emailbenchmarkemail.com HQ: St. Louis, MO, United StatesReported employees: 51-200 | St. Louis, MO, United States | 51-200 | Exact match | 115 contacts → |
“Benchmark helps busy marketers move faster and make a bigger impact with email.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Genesis Digital, LLCgenesisdigital.co HQ: Las Vegas, NV, United StatesReported employees: 51-200 | Las Vegas, NV, United States | 51-200 | Exact match | 104 contacts → |
“Genesis Digital empowers entrepreneurs and small business owners to achieve financial freedom with affordable and easy-to-use marketing and sales automation software, and a…” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Constant Contact Lead GEN & CRMconstantcontact.com HQ: Gainesville, FL, United StatesReported employees: 1,001-5,000 | Gainesville, FL, United States | 1,001-5,000 | Exact match | 72 contacts → |
“SharpSpring is a full-funnel marketing and sales automation platform that unites marketing and sales teams to launch and track targeted campaigns and personalize every interaction…” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Nutshellnutshell.com HQ: Ann Arbor, MI, United StatesReported employees: 11-50 | Ann Arbor, MI, United States | 11-50 | Exact match | 64 contacts → |
“The time-saving CRM For sales and marketing teams who want to maximize efficiency and revenue, Nutshell is a CRM and marketing automation platform that saves time and accelerates…” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Lead Liaisonleadliaison.com HQ: Dallas, TX, United StatesReported employees: 11-50 | Dallas, TX, United States | 11-50 | Exact match | 64 contacts → |
“Lead Liaison is an application development company that designs, develops, and sells cloud-based marketing and sales automation software.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Engagebayengagebay.com HQ: Wilmington, DE, United StatesReported employees: 51-200 | Wilmington, DE, United States | 51-200 | Exact match | 57 contacts → |
“EngageBay offers innovative AI-powered marketing and sales tools designed for small to medium-sized businesses.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Maxa Designsmaxadesigns.com HQ: Los Angeles, CA, United StatesReported employees: 51-200 | Los Angeles, CA, United States | 51-200 | Exact match | 52 contacts → |
“MAXA is the real estate and mortgage industry's #1 marketing center.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Sendcrux Labssendcrux.net HQ: Green Cove Springs, FL, United StatesReported employees: 51-200 | Green Cove Springs, FL, United States | 51-200 | Exact match | 48 contacts → |
“Sendcrux labs is building sales and marketing automation tools to help organisations to achieve the following goals cost-effectively- Boost revenues- Lead Generation- Nurture…” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Infinitechoiceinfinitechoice.com HQ: Dallas, TX, United StatesReported employees: 11-50 | Dallas, TX, United States | 11-50 | Exact match | 37 contacts → |
“InfiniteChoice was founded on the belief that the innovative use of technology and automation can unlock greater choice and better experiences for customers and partners.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Eloquaoracle.com HQ: San Francisco, CA, United StatesReported employees: 1,001-5,000 | San Francisco, CA, United States | 1,001-5,000 | Exact match | 36 contacts → |
“Eloqua, a wholly-owned subsidiary of Oracle, is the leading provider of modern marketing automation and revenue performance management software that helps ensure every component…” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Delivradelivra.com HQ: Carmel, IN, United StatesReported employees: 11-50 | Carmel, IN, United States | 11-50 | Exact match | 25 contacts → |
“Delivra, a Redbrick company, is a sophisticated email platform that designs custom solutions to help marketers and agencies automate highly personalized, event-driven campaigns…” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | VOLLYmyvolly.com HQ: Woburn, MA, United StatesReported employees: 51-200 | Woburn, MA, United States | 51-200 | Exact match | 25 contacts → |
“With Volly’s Marketing Automation Suite you can more easily capture, convert, and retain customers.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Mailmunchmailmunch.com HQ: San Francisco, CA, United StatesReported employees: 11-50 | San Francisco, CA, United States | 11-50 | Exact match | 25 contacts → |
“Mailmunch is the one-stop lead generation and marketing platform that allows you to grow your business with lead capture and email automation tools to reach your audience with a…” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Pamingapaminga.com HQ: Denver, CO, United StatesReported employees: 11-50 | Denver, CO, United States | 11-50 | Exact match | 22 contacts → |
“Paminga is a marketing automation platform built for Marketing Operations professionals, the people who actually live in the platform, not just buy it.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Justunojustuno.com HQ: Fairfax, CA, United StatesReported employees: 11-50 | Fairfax, CA, United States | 11-50 | Exact match | 20 contacts → |
“Justuno is a website marketing automation platform designed to increase leads and revenue for thousands of businesses worldwide.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Ethofyethofy.com HQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 18 contacts → |
“With the hosted Ethofy Inspired Marketing suite, marketers have a way to recapture their time and repurpose their budget dollars.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Real Magnetrealmagnet.com HQ: Bethesda, MD, United StatesReported employees: 51-200 | Bethesda, MD, United States | 51-200 | Exact match | 18 contacts → |
“Real Magnet is a leading marketing automation platform that helps businesses attract, engage and deliver better email, marketing, social and mobile campaigns.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Halo Programshaloprograms.com HQ: Walled Lake, MI, United StatesReported employees: 11-50 | Walled Lake, MI, United States | 11-50 | Exact match | 18 contacts → |
“Halo Programs have been helping Mortgage, Real Estate, and Residential Heating and Cooling companies to cultivate customer relationships for over 50 years.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Strategic Marketerstrategicmarketer.com HQ: Jupter, FL, United StatesReported employees: 11-50 | Jupter, FL, United States | 11-50 | Exact match | 16 contacts → |
“At Strategic Marketer, we are passionate about providing a complete suite of best-in-class marketing automation software, strategies and support to empower businesses to start up…” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Singulatesingulate.com HQ: East Coast, United StatesReported employees: 11-50 | East Coast, United States | 11-50 | Exact match | 15 contacts → |
“We're building the next gen AI marketing automation platform called Singulate.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 171 company matches
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Open source marketing automation software companies: dataset insights
September 5, 2026These summaries describe recorded coverage in this saved dataset. Coverage describes records in RevenueBase, rather than a census of every business in this market.
Reported company sizes
171 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Freshness & accuracy
How recently the business emails on this list were verified
Email last verified
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.
Coverage describes records in RevenueBase, rather than a census of every business in this market.
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: September 5, 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 ↗
Questions about this company list
What does Exact match mean for open source marketing automation software companies?
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 open source marketing automation software companies did RevenueBase find based in the United States?
The saved snapshot records 171 matching company records, 3,152 tracked contacts and 787 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: September 5, 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
Open source marketing automation software companies by geography
Cite this list
RevenueBase Data Team. Top 25 open source marketing automation software companies based in the United States. Snapshot: September 5, 2026. https://revenuebase.ai/companies/open-source-marketing-automation-software-companies/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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