14 attorneys in one Chicago office, management-side labor and wage and hour work, no practice outside Illinois
Illinois ARDC attorney register + firm website
Use cases
Find law firm managing partners and practice owners
The database has the firm. It does not have what the firm actually files: the case types, the courts, the volume, or the year any of it changed. Search by practice area, size, court activity or regulated status, and Causo reads PACER and CourtListener dockets, state bar records, the SRA register, Find a Solicitor and published judgments firm by firm, then shows you the evidence behind every match.
Run your first search412,253 law firm businesses in the United States
How to find law firms by practice area, size or court activity
3 results for this search. Pick another above to see what it returns.
Nine attorneys across Oak Brook and Rockford, plaintiff-side discrimination and wrongful termination
State bar directory + firm website
22 attorneys, two Illinois offices, union-side labor practice with an employee benefits group
Illinois ARDC register + Secretary of State business register
Illustrative example. The source types are the ones Causo genuinely reads for this market.
Where the data on law firms comes from
- PACER, CourtListener and the RECAP archiveFederal case dockets, nature of suit, filing dates and the firms appearing as counsel of record
- State court dockets and case search portalsCounty and state civil filings, matter type and how often a firm appears in each court
- State bar directories, the Illinois ARDC and the State Bar of CaliforniaAdmission status, licence standing, discipline history and the practice areas members list
- SRA register of regulated firms and solicitorsFirm authorisation number, regulated status, date of authorisation, approved managers and published decisions
- Law Society Find a Solicitor and the Bar Standards Board Barristers’ RegisterAreas of practice, Lexcel and Conveyancing Quality Scheme accreditation, office listings and barrister practising status
- Find Case Law at the National Archives and the employment tribunal decisions databasePublished judgments and tribunal decisions, and the firms named as representatives in them
- Companies House company and LLP filingsThe practice entity, members and designated members, persons with significant control and filing history
- Legal 500 and Chambers and PartnersPractice-area recognition, department rankings and which teams a firm is actually known for
- Indeed, Greenhouse, LeverParalegal, associate and practice manager vacancies as a timing signal, plus the case system named in the advert
- Dun & BradstreetFirmographics and corporate linkage where available
- Plus many moreNo fixed provider list. If the answer lives somewhere else, the agents read that instead.
Ask anything about a law firm
Every result is a starting point, not an endpoint. Ask a follow-up about any firm on your list in plain English and the agents go back out and read for it, then answer with the sources they used.
What do they actually file, and how often?
Answer43 employment cases in the past year, all in one federal district, and 31 of them wage and hour claims.
SourcesFederal court dockets + published tribunal decisions
Is the firm still regulated, and has anyone there been disciplined?
AnswerAuthorised since March, three approved managers listed, and no disciplinary decision published against the firm or its managers.
SourcesRegulator firm register + published decisions
How many fee earners are there, and who owns the firm?
AnswerNine fee earners. The LLP filings list four members, two of them designated, and no corporate entity holds a controlling interest.
SourcesCompany filings + the firm’s people page
Why you can’t filter law firms by practice area or case type
271,802civil cases filed in US federal district courts in the year to March 2025US Courts, Federal Judicial Caseload Statistics 2025
8,916firms regulated by the SRA in England and Wales, 14.9% of them sole practitionersSRA regulated population statistics, June 2026
Law firms are not missing from contact databases. A firm has a website, a people page and profiles for most of its lawyers, so Apollo or ZoomInfo will usually hand you the name, a headcount band and a city without complaint. The problem is the next filter. Contact databases are assembled from firmographics: industry code, headcount, revenue estimate, location. Under that collection method every practice in the country collapses into one bucket called legal services. None of them carry what a firm actually does: which case types it files, in which courts, how many times last year, whether that volume is rising or falling, which practice areas it is regulated and recognised for, whether its authorisation is current, or the date any of that changed. Those facts are published, just not by the firm in a form a database ingests. They sit in federal dockets on PACER and in the CourtListener and RECAP archive, in state court case search portals, in state bar admission and discipline records, on the SRA register of regulated firms, in the Law Society Find a Solicitor directory, in judgments published on Find Case Law, and in Companies House LLP filings that name the members. "Law firms that filed more than twenty employment cases last year" is a real qualifying question a vendor would want answered, and there is no field anywhere that answers it. Somebody has to read the docket.
Figures as of August 2026.
Apollo vs ZoomInfo vs Causo for law firm leads
| Apollo / ZoomInfo | Buying a list | Causo | |
|---|---|---|---|
| Which case types a firm actually files | No such field | No such field | Counted from court dockets |
| How many cases they filed last year, and in which courts | Not tracked | Not tracked | Read from PACER, state dockets and tribunal decisions |
| Regulated status, SRA firm number or state bar standing | No such field | Stale where present | Read from the regulator’s register |
| Practice areas beyond a generic legal services code | Industry code only | Website copy at best | Read from registers, dockets and judgments |
| Reaching the managing partner rather than a general enquiries inbox | Usually a firm-wide info address | Often bounced | Named role, verified address |
Frequently asked questions.
Start from the court record rather than a contact database. In the United States, federal dockets are published through PACER and mirrored in the free CourtListener and RECAP archive, which record the nature of suit and the firms acting as counsel, while state court portals cover everything filed below that. In England and Wales, employment tribunal decisions and court judgments are published, the latter on Find Case Law at the National Archives, and both name the representatives. Causo reads those alongside the SRA register and the Law Society Find a Solicitor directory, so practice area becomes something you can search on rather than something you have to guess from a website.
Because those databases are built from firmographics: industry code, headcount band, revenue estimate and location. Law firms are covered well in them, so the firm itself is usually present, and a solo practice and a 200-lawyer litigation shop both sit under the same legal services code. What is absent is the criterion. Case types filed, courts appeared in, filing volume, regulated status, SRA firm number, state bar standing and practice-area recognition are published by courts and regulators rather than by the firms in a form a database ingests, so no filter exists for any of them.
Yes, because filing counts are derivable from public dockets. In the United States, PACER and the CourtListener and RECAP archive record every federal civil case with its nature of suit and its counsel of record, and 271,802 civil cases were filed in US federal district courts in the year to March 2025. In England and Wales, employment tribunal decisions and published judgments name the firms that represented each side. Counting how often a given firm appears is reading, not filtering, which is why no contact database offers it as a field.
The firm, why it matched, the evidence behind that with its source, and the decision maker with a verified email address. For a law firm that typically means the regulator and current authorisation or admission status, the practice areas it is actually recognised for, the case types and courts it appears in, fee earner or attorney count, ownership structure, and the managing partner or practice owner. You can then ask follow-up questions about any result and get answers with sources attached.
It is read at the moment you search rather than pulled from a stored snapshot, so a firm authorised by the SRA last month, a case filed in a federal district court in April, or a tribunal decision published in June all appear in this month’s results. Contact databases refresh on their own cycle, which is why a firm that closed, merged or lost its authorisation can sit in one looking active for a year or more.
Yes. The sources differ by country, so Causo uses the local equivalents. In the United States that is PACER, the CourtListener and RECAP archive, state court portals and the state bar directories such as the Illinois ARDC and the State Bar of California. In England and Wales it is the SRA register of regulated firms, the Law Society Find a Solicitor directory, the Bar Standards Board Barristers’ Register and judgments published on Find Case Law. In Canada it is CanLII for decisions plus the Law Society of Ontario directory, in Australia the Fair Work Commission and court decisions on AustLII alongside the state legal services boards, and in Germany the national register of admitted lawyers maintained by the Bundesrechtsanwaltskammer.
It depends on the size of the practice. At a sole practice or a two-partner firm it is the owner or principal, usually the same person still running matters. From roughly ten fee earners upward there is normally a managing partner plus a practice manager or firm administrator who owns operational spend, and at mid-market size a separate IT or knowledge lead signs off on systems. Heads of department control practice-area budgets in firms organised that way. Causo surfaces the role alongside the firm so you can tell which of those you are looking at.
One token per researched company, per decision maker found, per question asked and per outreach sequence sent. Plans start at $10 a month, and the first 10 tokens are free with no card required.