Company lists · Data refreshed November 2026

Top 25 Pct filing firms worldwide

RevenueBase identified 552 company matches for pct filing firms worldwide as of November 2026 and tracks 4,298 professional contacts across them, including 1,488 with verified work emails. The United States is the largest market and New Delhi the largest hub.

This list covers company matches for pct filing firms worldwide, 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 6, 2026. Country and city lists for pct filing firms follow the table.

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.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
552Companies
4,298Contacts tracked
1,488Verified emails
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The 25 largest pct filing firms worldwide

Ranked by team size
Top 25 of 552 company matches for pct filing firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchSydney, AustraliaHQ recorded Nov 6, 2026201-500414 contacts →

Exact match

“Spruson & Ferguson is a leading provider of intellectual property (IP) services across the Asia-Pacific region, with more than 490 staff working from our offices in Bangkok…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchNew York, United StatesHQ recorded Nov 6, 2026201-500243 contacts →

Exact match

“Effectual Services is a well established and fast growing patent and legal support services company having experience and expertise in providing patent and legal services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchThe Hague, NetherlandsHQ recorded Nov 6, 2026201-500145 contacts →

Exact match

“V.O.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchAnkara, TürkiyeHQ recorded Nov 6, 202651-20094 contacts →

Exact match

“Was founded in 1964 Started serving the founders of today’s biggest holdings Now serving their third generation and expended globally along with them Established Turkey’s first…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchRome, ItalyHQ recorded Nov 6, 202651-20082 contacts →

Exact match

“We are an internationally recognised intellectual property firm specialising in the protection and enforcement of patents, trademarks, models, designs and copyrights.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchDenver, CO, United StatesHQ recorded Nov 6, 202651-20075 contacts →

Exact match

“Focused entirely on the worldwide protection of intellectual property rights in the United States and around the globe, few firms can match our breadth of experience and level of…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchDelhi, IndiaHQ recorded Nov 6, 202611-5070 contacts →

Exact match

“The Intellectual Property practice at Intellect Partners is recognized as a growing enterprise legal services provider in India.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchTurin, ItalyHQ recorded Nov 6, 202651-20061 contacts →

Exact match

“PRAXI Intellectual Property is a specialised IP firm with headquarters in Milano and other five locations in Italy and an international network of Partners.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchRaleigh, NC, United StatesHQ recorded Nov 6, 202611-5055 contacts →

Exact match

“Myers Bigel is a nationally ranked intellectual property law firm combining patent law expertise with a stable continuity of counsel to produce quality patents that stand up to…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchNew Taipei City, TaiwanHQ recorded Nov 6, 2026201-50054 contacts →

Exact match

“Since its founding in 1995, Taipei-based North America Intellectual Property (NAIP) Corporation has gained a reputation for service innovation and stringent quality standards in…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchHyderabad, IndiaHQ recorded Nov 6, 202651-20054 contacts →

Exact match

“Diligence, Constant innovation, Integrity, Efficiency, and consistency are the core principles that enable our firm to provide uncompromising commitment to deliver that we promise…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchMohali, IndiaHQ recorded Nov 6, 202611-5049 contacts →

Exact match

“Scintillation Research is a global player in providing patent monetization and licensing, strategic prosecution, business plan, innovation management, and market research services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchNew Delhi, IndiaHQ recorded Nov 6, 202651-20046 contacts →

Exact match

“PatentManiac Consulting Pvt.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchCoral Springs, TX, United StatesHQ recorded Nov 6, 202651-20045 contacts →

Exact match

“For over 20 years, The Patent Professor®, a national AV-rated intellectual property law firm, has specialized in patent prosecution matters, opinion work, and securing brand…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchNew Delhi, IndiaHQ recorded Nov 6, 202611-5040 contacts →

Exact match

“Rajeshwari & Associates provides complete services in the field of patents, beginning with advising, search for patents in India and Abroad, drafting, filing, prosecution…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchBangalore, IndiaHQ recorded Nov 6, 202611-5040 contacts →

Exact match

“At IPflair, we are dedicated to safeguarding your intellectual property rights with unwavering expertise and commitment.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchNoida, IndiaHQ recorded Nov 6, 202651-20035 contacts →

Exact match

“AnalystIP is trusted global leader in providing end to end solution for all your requirements exclusively on intellectual property (IP) law: Patents, Trademarks, Copyrights, IP…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchMinato, JapanHQ recorded Nov 6, 202611-5033 contacts →

Exact match

“NGB Corporation is a legal services company based out of Minato, Tokyo, Japan.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchNeuchâtel, SwitzerlandHQ recorded Nov 6, 202611-5030 contacts →

Exact match

“Founded in 1998 and with offices in Neuchâtel and Zurich, P & TS is one of Switzerland’s leading innovation protection firms.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchNoida, IndiaHQ recorded Nov 6, 202611-5029 contacts →

Exact match

“AKSH IPASSOCIATES is a well- established and fastest growing patent and legal support services firm.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchSan Antonio, TX, United StatesHQ recorded Nov 6, 202651-20029 contacts →

Exact match

“Welcome to The Inventor Solutions, your premier destination for innovation consultancy and patent services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchBernardsville, NJ, United StatesHQ recorded Nov 6, 202611-5028 contacts →

Exact match

“M&B IP is a patent firm founded with the mission to maximize startups’ valuations through patent portfolio development.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchBrno, Czech RepublicHQ recorded Nov 6, 202611-5028 contacts →

Exact match

“Since 2017, we help large and small enterprises, start-ups, and academic institutions to protect their unique innovations & brand.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchMclean, VA, United StatesHQ recorded Nov 6, 202611-5027 contacts →

Exact match

“Studebaker Brackett PC is committed to daily success through a collaborative team effort: each person is required to take full stewardship of their work product and knows that…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchLos Angeles, CA, United StatesHQ recorded Nov 6, 202611-5026 contacts →

Exact match

“We provide highest-quality patent legal services with the agility and flexibility to sustainably meet our clients' patent needs into the future.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 552 pct filing firms worldwide

See the full list, filter by size, metro and specialty, and access 1,488 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Pct filing firms worldwide at a glance

As of Nov 6, 2026
34.6%Verified-email coverage
7.8Average contacts per company
1-10Median size (employees)
2.9%Largest-city concentration · New Delhi
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
335
11-50
169
51-200
32
201-500
10
501-1,000
2

Email recency is reported on each country list linked below.

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.
Coverage
Every country. Country and city lists for pct filing firms are linked below.
What qualifies
Company records worldwide whose business descriptions match “pct filing firms” 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. 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 1,488 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 6, 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.

Pct filing firms by location

2 lists · largest first

Every Pct filing firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 “pct filing firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many pct filing firms are there worldwide?

RevenueBase identified 552 company matches for pct filing firms worldwide 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?

Spruson & Ferguson tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most pct filing firms?

The United States leads with 177 companies, followed by India (92). Every pct filing firms list by country and city is linked on this page.

Which city has the most pct filing firms?

New Delhi leads with 16 company records, followed by Hyderabad (11) and Bangalore (7).

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 1,488 professional contacts with verified work emails tracked across these 552 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 6, 2026.

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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.