Company lists · Data refreshed November 2026
Top 25 Open source project management software companies based in the United States
RevenueBase identified 173 company matches for open source project management software companies associated with the United States as of November 2026 and tracks 21,086 professional contacts across them, including 11,714 with verified work emails. New York is the largest hub.
This list covers company matches for open source project management 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 November 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 project management software companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 415 contacts → | ||||
Exact match “We design our software to fit the needs of modern teams.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 2 | 245 contacts → | ||||
Exact match “At Linear, we are on a mission to bring magic back to software.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 3 | 74 contacts → | ||||
Exact match “We help teams move faster.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 4 | 74 contacts → | ||||
Exact match “ONES.com is an all-in-one project management platform that helps teams enhance development efficiency, ensure delivery quality, and foster seamless collaboration.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 5 | 51 contacts → | ||||
Exact match “Our mission is to empower builders with software that streamlines projects and drives financial performance.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 6 | 47 contacts → | ||||
Exact match “Planview AdaptiveWork (formerly Clarizen) enables PMOs and professional services delivery teams of all sizes to gain real-time visibility across all their work, automate…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 7 | 46 contacts → | ||||
Exact match “ProofHub is an all-in-one project management and team collaboration platform built for teams of all sizes who want to spend less time managing work, and more time doing it - full…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 8 | 35 contacts → | ||||
Exact match “Meisterplan is software that helps you coordinate many projects across many teams, no matter which tools or methods they use.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 9 | 35 contacts → | ||||
Exact match “Workzone is a 24-year old Project Management Software purpose-built for Marketing, Creative, Operations & IT teams in core sectors: higher education, healthcare, financial…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 10 | 32 contacts → | ||||
Exact match “ActiveCollab offers powerful, yet easy-to-use tools for capacity planning and workload management, time tracking, project management, team collaboration, client communication…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 11 | 20 contacts → | ||||
Exact match “We believe that technology should be used to improve lives by making people faster, smarter and more focused.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 12 | 19 contacts → | ||||
Exact match “TeamGantt is a project management software company that specializes in simple and intuitive gantt chart tools for project planning and collaboration.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 13 | 19 contacts → | ||||
Exact match “One platform to streamline your entire business.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 14 | 18 contacts → | ||||
Exact match “Project Insight is award-winning project portfolio management software that centralizes your work, tasks, projects, and collaboration in one easy-to-use online platform.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 15 | 15 contacts → | ||||
Exact match “More than users rely on Central Desktop (formerly Central Desktop) for online collaboration software and project management solutions to manage files, collaborate on projects and…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 16 | 12 contacts → | ||||
Exact match “Redbooth is award-winning task and project management software that gets your team organized and keeps projects on track.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 17 | 12 contacts → | ||||
Exact match “With VPO, you’re not just getting a product.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 18 | 12 contacts → | ||||
Exact match “OfficeClip LLC is a software company that creates web management software for businesses.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 19 | 11 contacts → | ||||
Exact match “nTask is an online project management platform, known for pioneering simplified work management.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 20 | 10 contacts → | ||||
Exact match “DevStride helps technical teams deliver with confidence-on time and on target.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 21 | 9 contacts → | ||||
Exact match “You can’t manage customer work in spreadsheets forever.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 22 | 9 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 23 | 8 contacts → | ||||
Exact match “The modern workplace is filled with tools to help people work better.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 24 | 8 contacts → | ||||
Exact match “Visor is a modern, beautiful project & portfolio management tool that seamlessly connects data and people.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 25 | 7 contacts → | ||||
Exact match “Pacer (formerly EHSolution.com/4MyRollout/Critical Path/Land-It) makes large scale project planning easier and more efficient, enabling project leaders to communicate with team…” Recorded in the RevenueBase company graph · Nov 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 project management 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 173 open source project management software companies based in the United States
See the full list, filter by size, metro and specialty, and access 11,714 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Open source project management software companies based in the United States at a glance
As of Nov 5, 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 173 companies.
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 project management 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 11,714 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 November 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 project management software companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many open source project management software companies are there based in the United States?
RevenueBase identified 173 company matches for open source project management software companies associated with the United States as of November 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?
cake.com tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most open source project management software companies?
New York leads with 11 company records, followed by San Francisco (9) and Austin (6).
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 11,714 professional contacts with verified work emails tracked across these 173 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 November 5, 2026.
Ready to reach these companies? Verified emails and direct dials for all 173 open source project management software companies based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Open source project management software companies by geography
- Open source project management software companies based in Australia
- Open source project management software companies based in Brazil
- Open source project management software companies based in Canada
- Open source project management software companies based in France
- Open source project management software companies based in Germany
- Open source project management software companies based in India
- Open source project management software companies based in the Netherlands
- Open source project management software companies based in the United Kingdom
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 project management software companies based in Australia
- Open source project management software companies based in Brazil
- Open source project management software companies based in Canada
- Open source project management software companies based in France
- Open source project management software companies based in Germany
- Open source project management software companies based in India
Company intelligence · public preview
Top 25 open source project management 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 173 matching company records for open source project management software companies based in the United States, with 21,086 tracked contacts and 11,714 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: November 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 project management 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 |  cake.comcake.comHQ: Palo Alto, CA, United StatesReported employees: 201-500 | Palo Alto, CA, United States | 201-500 | Exact match | 415 contacts → |
“We design our software to fit the needs of modern teams.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Linearlinear.appHQ: San Francisco, CA, United StatesReported employees: 51-200 | San Francisco, CA, United States | 51-200 | Exact match | 245 contacts → |
“At Linear, we are on a mission to bring magic back to software.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  HIVEhive.comHQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 74 contacts → |
“We help teams move faster.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  ones.comones.comHQ: San Jose, CA, United StatesReported employees: 201-500 | San Jose, CA, United States | 201-500 | Exact match | 74 contacts → |
“ONES.com is an all-in-one project management platform that helps teams enhance development efficiency, ensure delivery quality, and foster seamless collaboration.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Konstructiqkonstructiq.comHQ: Palo Alto, CA, United StatesReported employees: 11-50 | Palo Alto, CA, United States | 11-50 | Exact match | 51 contacts → |
“Our mission is to empower builders with software that streamlines projects and drives financial performance.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Clarizen NOW Planview Adaptiveworkplanview.comHQ: Milpitas, CA, United StatesReported employees: 201-500 | Milpitas, CA, United States | 201-500 | Exact match | 47 contacts → |
“Planview AdaptiveWork (formerly Clarizen) enables PMOs and professional services delivery teams of all sizes to gain real-time visibility across all their work, automate…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Proofhubproofhub.comHQ: Covina, CA, United StatesReported employees: 11-50 | Covina, CA, United States | 11-50 | Exact match | 46 contacts → |
“ProofHub is an all-in-one project management and team collaboration platform built for teams of all sizes who want to spend less time managing work, and more time doing it - full…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Meisterplanmeisterplan.comHQ: Seattle, WA, United StatesReported employees: 51-200 | Seattle, WA, United States | 51-200 | Exact match | 35 contacts → |
“Meisterplan is software that helps you coordinate many projects across many teams, no matter which tools or methods they use.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Workzoneworkzone.comHQ: Philadelphia, PA, United StatesReported employees: 11-50 | Philadelphia, PA, United States | 11-50 | Exact match | 35 contacts → |
“Workzone is a 24-year old Project Management Software purpose-built for Marketing, Creative, Operations & IT teams in core sectors: higher education, healthcare, financial…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Activecollabactivecollab.comHQ: Norfolk, VA, United StatesReported employees: 11-50 | Norfolk, VA, United States | 11-50 | Exact match | 32 contacts → |
“ActiveCollab offers powerful, yet easy-to-use tools for capacity planning and workload management, time tracking, project management, team collaboration, client communication…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Infinitystartinfinity.comHQ: San Francisco, CA, United StatesReported employees: 11-50 | San Francisco, CA, United States | 11-50 | Exact match | 20 contacts → |
“We believe that technology should be used to improve lives by making people faster, smarter and more focused.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Teamganttteamgantt.comHQ: Lutherville-timonium, MD, United StatesReported employees: 11-50 | Lutherville-timonium, MD, United States | 11-50 | Exact match | 19 contacts → |
“TeamGantt is a project management software company that specializes in simple and intuitive gantt chart tools for project planning and collaboration.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Bonsai By Zoomhellobonsai.comHQ: San Francisco, CA, United StatesReported employees: 11-50 | San Francisco, CA, United States | 11-50 | Exact match | 19 contacts → |
“One platform to streamline your entire business.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Project Insightprojectinsight.comHQ: Irvine, CA, United StatesReported employees: 11-50 | Irvine, CA, United States | 11-50 | Exact match | 18 contacts → |
“Project Insight is award-winning project portfolio management software that centralizes your work, tasks, projects, and collaboration in one easy-to-use online platform.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Central Desktopcentraldesktop.comHQ: Pasadena, CA, United StatesReported employees: 11-50 | Pasadena, CA, United States | 11-50 | Exact match | 15 contacts → |
“More than users rely on Central Desktop (formerly Central Desktop) for online collaboration software and project management solutions to manage files, collaborate on projects and…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Redboothredbooth.comHQ: San Francisco, CA, United StatesReported employees: 51-200 | San Francisco, CA, United States | 51-200 | Exact match | 12 contacts → |
“Redbooth is award-winning task and project management software that gets your team organized and keeps projects on track.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | HQ: Pittsburgh, PA, United StatesReported employees: 11-50 | Pittsburgh, PA, United States | 11-50 | Exact match | 12 contacts → |
“With VPO, you’re not just getting a product.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Officeclipofficeclip.comHQ: Atlanta, GA, United StatesReported employees: 11-50 | Atlanta, GA, United States | 11-50 | Exact match | 12 contacts → |
“OfficeClip LLC is a software company that creates web management software for businesses.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  NTASKntaskmanager.comHQ: Frisco, TX, United StatesReported employees: 11-50 | Frisco, TX, United States | 11-50 | Exact match | 11 contacts → |
“nTask is an online project management platform, known for pioneering simplified work management.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Devstridedevstride.comHQ: Kansas City, MO, United StatesReported employees: 11-50 | Kansas City, MO, United States | 11-50 | Exact match | 10 contacts → |
“DevStride helps technical teams deliver with confidence-on time and on target.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Donedonedonedone.comHQ: Overland Park, KS, United StatesReported employees: 1-10 | Overland Park, KS, United States | 1-10 | Exact match | 9 contacts → |
“You can’t manage customer work in spreadsheets forever.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Liquidplannerliquidplanner.comHQ: Burlington, MA, United StatesReported employees: 11-50 | Burlington, MA, United States | 11-50 | Exact match | 9 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 23 |  Basicopsbasicops.comHQ: San Francisco, CA, United StatesReported employees: 11-50 | San Francisco, CA, United States | 11-50 | Exact match | 8 contacts → |
“The modern workplace is filled with tools to help people work better.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  VISORvisor.usHQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 8 contacts → |
“Visor is a modern, beautiful project & portfolio management tool that seamlessly connects data and people.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  PACERgetpacer.comHQ: Philadelphia, PA, United StatesReported employees: 1-10 | Philadelphia, PA, United States | 1-10 | Exact match | 7 contacts → |
“Pacer (formerly EHSolution.com/4MyRollout/Critical Path/Land-It) makes large scale project planning easier and more efficient, enabling project leaders to communicate with team…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 173 company matches
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Open source project management software companies: dataset insights
November 5, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
172 records in the displayed employee bands.
1 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 173 companies.
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.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
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: November 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 project management 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 project management software companies did RevenueBase find based in the United States?
The saved snapshot records 173 matching company records, 21,086 tracked contacts and 11,714 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: November 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 project management software companies by geography
- Open source project management software companies based in Australia
- Open source project management software companies based in Brazil
- Open source project management software companies based in Canada
- Open source project management software companies based in France
- Open source project management software companies based in Germany
- Open source project management software companies based in India
- Open source project management software companies based in the Netherlands
- Open source project management software companies based in the United Kingdom
Cite this list
RevenueBase Data Team. Top 25 open source project management software companies based in the United States. Snapshot: November 5, 2026. https://revenuebase.ai/companies/open-source-project-management-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 project management software companies based in Australia
- Open source project management software companies based in Brazil
- Open source project management software companies based in Canada
- Open source project management software companies based in France
- Open source project management software companies based in Germany
- Open source project management software companies based in India
Company intelligence · public preview
Top 25 open source project management software companies based in the United States
RevenueBase records 173 matching company records for open source project management software companies based in the United States, with 21,086 tracked contacts and 11,714 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: November 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 project management 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 | cake.comcake.com HQ: Palo Alto, CA, United StatesReported employees: 201-500 | Palo Alto, CA, United States | 201-500 | Exact match | 415 contacts → |
“We design our software to fit the needs of modern teams.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Linearlinear.app HQ: San Francisco, CA, United StatesReported employees: 51-200 | San Francisco, CA, United States | 51-200 | Exact match | 245 contacts → |
“At Linear, we are on a mission to bring magic back to software.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | HIVEhive.com HQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 74 contacts → |
“We help teams move faster.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | ones.comones.com HQ: San Jose, CA, United StatesReported employees: 201-500 | San Jose, CA, United States | 201-500 | Exact match | 74 contacts → |
“ONES.com is an all-in-one project management platform that helps teams enhance development efficiency, ensure delivery quality, and foster seamless collaboration.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Konstructiqkonstructiq.com HQ: Palo Alto, CA, United StatesReported employees: 11-50 | Palo Alto, CA, United States | 11-50 | Exact match | 51 contacts → |
“Our mission is to empower builders with software that streamlines projects and drives financial performance.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Clarizen NOW Planview Adaptiveworkplanview.com HQ: Milpitas, CA, United StatesReported employees: 201-500 | Milpitas, CA, United States | 201-500 | Exact match | 47 contacts → |
“Planview AdaptiveWork (formerly Clarizen) enables PMOs and professional services delivery teams of all sizes to gain real-time visibility across all their work, automate…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Proofhubproofhub.com HQ: Covina, CA, United StatesReported employees: 11-50 | Covina, CA, United States | 11-50 | Exact match | 46 contacts → |
“ProofHub is an all-in-one project management and team collaboration platform built for teams of all sizes who want to spend less time managing work, and more time doing it - full…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Meisterplanmeisterplan.com HQ: Seattle, WA, United StatesReported employees: 51-200 | Seattle, WA, United States | 51-200 | Exact match | 35 contacts → |
“Meisterplan is software that helps you coordinate many projects across many teams, no matter which tools or methods they use.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Workzoneworkzone.com HQ: Philadelphia, PA, United StatesReported employees: 11-50 | Philadelphia, PA, United States | 11-50 | Exact match | 35 contacts → |
“Workzone is a 24-year old Project Management Software purpose-built for Marketing, Creative, Operations & IT teams in core sectors: higher education, healthcare, financial…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Activecollabactivecollab.com HQ: Norfolk, VA, United StatesReported employees: 11-50 | Norfolk, VA, United States | 11-50 | Exact match | 32 contacts → |
“ActiveCollab offers powerful, yet easy-to-use tools for capacity planning and workload management, time tracking, project management, team collaboration, client communication…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Infinitystartinfinity.com HQ: San Francisco, CA, United StatesReported employees: 11-50 | San Francisco, CA, United States | 11-50 | Exact match | 20 contacts → |
“We believe that technology should be used to improve lives by making people faster, smarter and more focused.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Teamganttteamgantt.com HQ: Lutherville-timonium, MD, United StatesReported employees: 11-50 | Lutherville-timonium, MD, United States | 11-50 | Exact match | 19 contacts → |
“TeamGantt is a project management software company that specializes in simple and intuitive gantt chart tools for project planning and collaboration.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Bonsai By Zoomhellobonsai.com HQ: San Francisco, CA, United StatesReported employees: 11-50 | San Francisco, CA, United States | 11-50 | Exact match | 19 contacts → |
“One platform to streamline your entire business.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Project Insightprojectinsight.com HQ: Irvine, CA, United StatesReported employees: 11-50 | Irvine, CA, United States | 11-50 | Exact match | 18 contacts → |
“Project Insight is award-winning project portfolio management software that centralizes your work, tasks, projects, and collaboration in one easy-to-use online platform.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Central Desktopcentraldesktop.com HQ: Pasadena, CA, United StatesReported employees: 11-50 | Pasadena, CA, United States | 11-50 | Exact match | 15 contacts → |
“More than users rely on Central Desktop (formerly Central Desktop) for online collaboration software and project management solutions to manage files, collaborate on projects and…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Redboothredbooth.com HQ: San Francisco, CA, United StatesReported employees: 51-200 | San Francisco, CA, United States | 51-200 | Exact match | 12 contacts → |
“Redbooth is award-winning task and project management software that gets your team organized and keeps projects on track.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | HQ: Pittsburgh, PA, United StatesReported employees: 11-50 | Pittsburgh, PA, United States | 11-50 | Exact match | 12 contacts → |
“With VPO, you’re not just getting a product.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Officeclipofficeclip.com HQ: Atlanta, GA, United StatesReported employees: 11-50 | Atlanta, GA, United States | 11-50 | Exact match | 12 contacts → |
“OfficeClip LLC is a software company that creates web management software for businesses.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | NTASKntaskmanager.com HQ: Frisco, TX, United StatesReported employees: 11-50 | Frisco, TX, United States | 11-50 | Exact match | 11 contacts → |
“nTask is an online project management platform, known for pioneering simplified work management.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Devstridedevstride.com HQ: Kansas City, MO, United StatesReported employees: 11-50 | Kansas City, MO, United States | 11-50 | Exact match | 10 contacts → |
“DevStride helps technical teams deliver with confidence-on time and on target.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Donedonedonedone.com HQ: Overland Park, KS, United StatesReported employees: 1-10 | Overland Park, KS, United States | 1-10 | Exact match | 9 contacts → |
“You can’t manage customer work in spreadsheets forever.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Liquidplannerliquidplanner.com HQ: Burlington, MA, United StatesReported employees: 11-50 | Burlington, MA, United States | 11-50 | Exact match | 9 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 23 | Basicopsbasicops.com HQ: San Francisco, CA, United StatesReported employees: 11-50 | San Francisco, CA, United States | 11-50 | Exact match | 8 contacts → |
“The modern workplace is filled with tools to help people work better.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | VISORvisor.us HQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 8 contacts → |
“Visor is a modern, beautiful project & portfolio management tool that seamlessly connects data and people.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | PACERgetpacer.com HQ: Philadelphia, PA, United StatesReported employees: 1-10 | Philadelphia, PA, United States | 1-10 | Exact match | 7 contacts → |
“Pacer (formerly EHSolution.com/4MyRollout/Critical Path/Land-It) makes large scale project planning easier and more efficient, enabling project leaders to communicate with team…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 173 company matches
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Open source project management software companies: dataset insights
November 5, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
172 records in the displayed employee bands.
1 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 173 companies.
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.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
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: November 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 project management 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 project management software companies did RevenueBase find based in the United States?
The saved snapshot records 173 matching company records, 21,086 tracked contacts and 11,714 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: November 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 project management software companies by geography
- Open source project management software companies based in Australia
- Open source project management software companies based in Brazil
- Open source project management software companies based in Canada
- Open source project management software companies based in France
- Open source project management software companies based in Germany
- Open source project management software companies based in India
- Open source project management software companies based in the Netherlands
- Open source project management software companies based in the United Kingdom
Cite this list
RevenueBase Data Team. Top 25 open source project management software companies based in the United States. Snapshot: November 5, 2026. https://revenuebase.ai/companies/open-source-project-management-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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- Open source project management software companies based in Australia
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- Open source project management software companies based in Canada
- Open source project management software companies based in France
- Open source project management software companies based in Germany
- Open source project management software companies based in India