Company lists · Data refreshed September 2026

Top 25 Legal client portal software companies based in the United States

Name: Legal client portal software companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 4, 2026 272 companies tracked

RevenueBase identified 272 legal client portal software companies headquartered in the United States as of September 2026 and tracks 5,318 professional contacts across them, including 2,966 with verified work emails and 2,031 with mobile numbers. New York is the largest hub.

This list covers legal client portal software companies headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 4, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 4, 2026 86% judged on-target in blind review

272Companies

5,318Contacts tracked

2,966Verified emails

2,031Mobile numbers

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest legal client portal software companies based in the United States

Ranked by team size

Top 25 of 272 legal client portal software companies based in the United States, ranked by team size, largest first. Data refreshed Sep 4, 2026. RevenueBase Smart Search rates how each company's information relates to legal client portal software companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Litera	Partial evidence	Chicago, IL, United StatesHQ checked Sep 4, 2026	501-1,000	892 contacts →
	Partial evidence “Litera has been at the forefront of legal technology for 25+ years.” Source: RevenueBase Database · checked Sep 4, 2026
2	Filevine	Strong evidence	Salt Lake City, IL, United StatesHQ checked Sep 4, 2026	501-1,000	823 contacts →
	Strong evidence “Filevine is changing the way legal work gets done for law practitioners and their clients.” Source: RevenueBase Database · checked Sep 4, 2026
3	Neostella	Strong evidence	Milwaukee, IL, United StatesHQ checked Sep 4, 2026	201-500	371 contacts →
	Strong evidence “Neostella builds enterprise case management software for modern legal teams who need clarity, control, and connection across every part of their work.” Source: RevenueBase Database · checked Sep 4, 2026
4	Actionstep	Indirect evidence	Denver, CO, United StatesHQ checked Sep 4, 2026	201-500	211 contacts →
	Indirect evidence “Actionstep is the preferred law firm operations platform built to help modern law firms run smarter, scale faster, and stay in control.” Source: RevenueBase Database · checked Sep 4, 2026
5	Surepoint Technologies	Partial evidence	Austin, TX, United StatesHQ checked Sep 4, 2026	51-200	195 contacts →
	Partial evidence “For more than four decades, SurePoint® Technologies has empowered law firms to thrive in a constantly evolving legal landscape.” Source: RevenueBase Database · checked Sep 4, 2026
6	Assembly Software	Partial evidence	Coral Gables, FL, United StatesHQ checked Sep 4, 2026	51-200	145 contacts →
	Partial evidence “Assembly Software is redefining how plaintiff law firms run their practice: combining AI-powered case management, workflow automation, and 40+ years of expertise to help firms…” Source: RevenueBase Database · checked Sep 4, 2026
7	Infotrack US	Indirect evidence	New York, NY, United StatesHQ checked Sep 4, 2026	201-500	137 contacts →
	Indirect evidence “Litigation is complicated.” Source: RevenueBase Database · checked Sep 4, 2026
8	Centerbase	Partial evidence	Dallas, TX, United StatesHQ checked Sep 4, 2026	51-200	124 contacts →
	Partial evidence “Centerbase is the most customizable, cloud-based legal practice management solution that gives mid-sized firms the power to streamline their daily tasks with ease and efficiency.” Source: RevenueBase Database · checked Sep 4, 2026
9	Lexicon	Partial evidence	Chesterfield, MO, United StatesHQ checked Sep 4, 2026	51-200	89 contacts →
	Partial evidence “Lexicon is a legal services and technology provider with deep expertise in the legal industry.” Source: RevenueBase Database · checked Sep 4, 2026
10	Paradigm	Strong evidence	New York, NY, United StatesHQ checked Sep 4, 2026	51-200	77 contacts →
	Strong evidence “Paradigm offers a suite of legal software solutions that help lawyers manage, automate and grow their firms.” Source: RevenueBase Database · checked Sep 4, 2026
11	Smartvault	Strong evidence	Houston, TX, United StatesHQ checked Sep 4, 2026	51-200	76 contacts →
	Strong evidence “SmartVault is the leading provider of a secure, cloud-based document management and client portal platform purpose-built for accounting and tax professionals.” Source: RevenueBase Database · checked Sep 4, 2026
12	Case Status	Partial evidence	Charleston, SC, United StatesHQ checked Sep 4, 2026	51-200	70 contacts →
	Partial evidence “At Case Status, we understand that the satisfaction of your clients is vital to the success of your law firm.” Source: RevenueBase Database · checked Sep 4, 2026
13	HONA	Partial evidence	Lehi, UT, United StatesHQ checked Sep 4, 2026	51-200	66 contacts →
	Partial evidence “Hona is an application that helps law firms update their clients on their case.” Source: RevenueBase Database · checked Sep 4, 2026
14	File & Servexpress	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 4, 2026	51-200	66 contacts →
	Indirect evidence “With over three decades of experience in the government tech industry, File & ServeXpress delivers trusted technology solutions that help courts, government agencies, and law…” Source: RevenueBase Database · checked Sep 4, 2026
15	ICOPY	Partial evidence	Loveland, CO, United StatesHQ checked Sep 4, 2026	51-200	65 contacts →
	Partial evidence “Founded in 2001, iCopy Legal is a trusted legal support services company specializing in record retrieval, litigation copy and print services, and virtual assistant programs…” Source: RevenueBase Database · checked Sep 4, 2026
16	Practicepanther	Partial evidence	Miami, FL, United StatesHQ checked Sep 4, 2026	51-200	53 contacts →
	Partial evidence “PracticePanther is a leading legal practice management platform.” Source: RevenueBase Database · checked Sep 4, 2026
17	Smartadvocate LLC	Partial evidence	Bonita Springs, NY, United StatesHQ checked Sep 4, 2026	11-50	48 contacts →
	Partial evidence “SmartAdvocate is a fully customizable, award-winning legal case management system with built-in Artificial Intelligence tools, and made to handle the challenges of today’s fast…” Source: RevenueBase Database · checked Sep 4, 2026
18	Martindale-Nolo	Partial evidence	Pleasanton, CA, United StatesHQ checked Sep 4, 2026	201-500	47 contacts →
	Partial evidence “Martindale-Nolo represents a joint effort by two of the most trusted and experienced leaders in the legal industry - Nolo and Martindale-Hubbell - to deliver a comprehensive…” Source: RevenueBase Database · checked Sep 4, 2026
19	Upcounsel	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 4, 2026	11-50	42 contacts →
	Partial evidence “UpCounsel is the leading marketplace for legal services.” Source: RevenueBase Database · checked Sep 4, 2026
20	Lawlytics	Indirect evidence	Scottsdale, AZ, United StatesHQ checked Sep 4, 2026	11-50	37 contacts →
	Indirect evidence “LawLytics is the website platform for small law firms.” Source: RevenueBase Database · checked Sep 4, 2026
21	Tabs3 Software	Strong evidence	Lincoln, NE, United StatesHQ checked Sep 4, 2026	51-200	36 contacts →
	Strong evidence “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: RevenueBase Database · checked Sep 4, 2026
22	BIG Voodoo Interactive	Indirect evidence	Easthampton, MA, United StatesHQ checked Sep 4, 2026	11-50	33 contacts →
	Indirect evidence “We provide innovative strategies for attorneys who need cases, NOT JUST clicks.” Source: RevenueBase Database · checked Sep 4, 2026
23	Tybera Development Group	Partial evidence	Orem, UT, United StatesHQ checked Sep 4, 2026	11-50	30 contacts →
	Partial evidence “Tybera builds modern digital tools for courts, improving how legal systems manage cases, documents, and filings.” Source: RevenueBase Database · checked Sep 4, 2026
24	Leap Legal Software US	Strong evidence	Jersey City, NJ, United StatesHQ checked Sep 4, 2026	51-200	29 contacts →
	Strong evidence “LEAP’s legal practice management software combines case management, document automation, legal accounting, and billing into a single cloud-based solution for all common areas of…” Source: RevenueBase Database · checked Sep 4, 2026
25	Cosmolex Legal Software	Indirect evidence	Monmouth Junction, NJ, United StatesHQ checked Sep 4, 2026	51-200	28 contacts →
	Indirect evidence “CosmoLex offers an end-to-end solution for law firms, combining matter management, firm accounting, invoicing, payments, and more.” Source: RevenueBase Database · checked Sep 4, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: legal client portal software companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names legal client portal software companies.
Partial evidence: Its own public description names part of legal client portal software companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name legal client portal software companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 272 legal client portal 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 2,966 reachable decision-makers.

Free signup · no credit card

View the full list →

Legal client portal software companies based in the United States at a glance

As of Sep 4, 2026

55.8%Verified-email coverage

38.2%Mobile-number coverage

19.6Average contacts per company

1-10Median size (employees)

6.6%Largest-city concentration · New York

Sep 4, 2026Page data refreshed

Companies by employee count

1-10

144

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

00–30

26131–60

1,60761–90

1,08690–180

12180+

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 client portal software companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “legal client portal software companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names legal client portal software companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among legal client portal software companies, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 2,966 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

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names legal client portal software companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many legal client portal software companies are there based in the United States?

RevenueBase identified 272 legal client portal 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?

Litera, headquartered in Chicago, tops this list with the largest team on record.

Which city has the most legal client portal software companies?

New York leads with 18 headquartered companies, followed by Chicago (10) and Los Angeles (8).

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 2,966 verified decision-maker contacts tracked across these 272 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 272 legal client portal software companies based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

Legal client portal software companies by geography

Browse the directory

About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.