Company lists · Data refreshed September 2026
Top 14 Legal calendaring software companies based in the United States
RevenueBase identified 32 legal calendaring software companies headquartered in the United States as of September 2026 and tracks 327 professional contacts across them, including 101 with verified work emails and 88 with mobile numbers. New York is the largest hub.
This list covers legal calendaring software companies headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, how directly it supports the match, and when it was last checked. Data refreshed September 4, 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 14 largest legal calendaring software companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 121 | ||||
“ALB is a leading and innovative cloud and web-based platform built by industry experts and lawyers for assisting law firms across the world.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 2 | 36 | ||||
“Tabs3 Software provides a reliable, easy-to-use, seamlessly integrated suite of software products for law firms and legal professionals, ranging from billing to practice…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 3 | 27 | ||||
“BEC Legal Systems’ solutions are specifically designed for law firms and corporate legal departments who rely on Microsoft Office.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 4 | 22 | ||||
“LeanLaw is a cloud-based legal timekeeping and billing software designed by lawyers for lawyers.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 5 | 19 | ||||
“LawToolBox is a cloud-based centralized deadline management system used by attorneys and paralegals that calculates court rule-based deadlines based on the state and federal court…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 6 | 18 | ||||
“Vimcal is the world's fastest calendar, beautifully designed for people who have too many meetings.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 7 | 12 | ||||
“Bill4Time is a cloud-based time tracking and billing software designed for law firms.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 8 | 5 | ||||
“DocketCalendar is a rules-based calendaring solution trusted by law firms all across the United States.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 9 | 3 | ||||
“Inlet tracks billable hours for small and mid-sized law firms.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 10 | 3 | ||||
“Easy-to-use, inexpensive, reliable legal billing software for solos and small firms.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 11 | 2 | ||||
“Cloud-based FactBox is fact-management & timeline software designed specifically for the problems of busy lawyers.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 12 | Merus INCIndirect evidence | 1 | |||
Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 13 | Time & Billing Associates, INCPartial evidence | 1 | |||
“We are a Legal Technology Consulting Firm.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 14 | Puritas Springs SoftwareStrong evidence | 1 | |||
“Since 1986 Puritas Springs Software has specialized in the development and marketing of reasonably priced legal software to enhance the business and practical needs of courts…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
Showing 14 of 32 legal calendaring software companies based in the United States
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 101 reachable decision-makers.
Free signup · no credit card
Legal calendaring software companies based in the United States at a glance
As of Sep 4, 2026Companies by employee count
Verified emails by last verification
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among legal calendaring software companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in the United States whose own description of what they do matches “legal calendaring software companies”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among legal calendaring software companies, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and an evidence rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 101 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 4, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Frequently asked
How many legal calendaring software companies are there based in the United States?
RevenueBase identified 32 legal calendaring software companies headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Accurate Legal Billing, headquartered in New York, tops this list with the largest team on record.
Which city has the most legal calendaring software companies?
New York leads with 3 headquartered companies, followed by Alamo (2) and Los Angeles (2).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 101 verified decision-maker contacts tracked across these 32 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 4, 2026.
Ready to reach these companies? Verified emails and direct dials for all 32 legal calendaring software companies based in the United States. Start with a free account, no credit card.
Get the full listRelated lists
Browse the directory
Browse: Companies home · All United States lists · All Legal calendaring software companies lists · New lists
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
- 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
- Real estate companies based in the United States