Company lists · Data refreshed September 2026

Top 9 Patent law firms based in Indonesia

RevenueBase identified 54 patent law firms headquartered in Indonesia as of September 2026 and tracks 480 professional contacts across them, including 112 with verified work emails. Dki Jakarta is the largest hub.

This list covers patent law firms headquartered in Indonesia, 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 14, 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 14, 2026 86% judged on-target in blind review
54Companies
480Contacts tracked
112Verified emails
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The 9 largest patent law firms based in Indonesia

Ranked by team size
Top 9 of 54 patent law firms based in Indonesia, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to patent law firms: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidencePegangsaan, IndonesiaHQ checked Sep 14, 202651-20068 contacts →

Partial evidence

“The Most Reliable & Comprehensive #IntellectualProperty Law Firm in the World Am badar & Am Badar was founded by Mr Toetoen Ambadar, S.H.”

Source: RevenueBase Database · checked Sep 14, 2026
2Indirect evidenceJakarta, IndonesiaHQ checked Sep 14, 202611-5056 contacts →

Indirect evidence

“K&K Advocates - intellectual property (K&K Advocates) is a boutique Intellectual Property (IP) firm which specializes in providing services across the entire spectrum of IP.”

Source: RevenueBase Database · checked Sep 14, 2026
3Indirect evidenceSouth Jakarta, IndonesiaHQ checked Sep 14, 202611-5048 contacts →

Indirect evidence

“Leveraging legal expertise to support and enable innovation within a framework that ensures legal compliance and mitigates legal risks associated with novel business ideas and…”

Source: RevenueBase Database · checked Sep 14, 2026
4Indirect evidenceCentral Jakarta, IndonesiaHQ checked Sep 14, 202611-5037 contacts →

Indirect evidence

“Since its establishment in 1986, Januar Jahja and Partners (JJP) has grown from a modest operation into one of the preeminent IP boutiques in all of Indonesia.”

Source: RevenueBase Database · checked Sep 14, 2026
5Indirect evidenceJakarta, IndonesiaHQ checked Sep 14, 202651-20030 contacts →

Indirect evidence

“As the new identity into which AMROOS & PARTNERS has transformed in October 2010, AMR PARTNERSHIP is committed to continue and enhance the longstanding tradition of excellence…”

Source: RevenueBase Database · checked Sep 14, 2026
6Partial evidenceJakarta, IndonesiaHQ checked Sep 14, 202611-5023 contacts →

Partial evidence

“Widjojo Oei Tat Hway is one of Indonesia's leading intellectual property firms specializing in patents, trademarks, copyrights, and industrial designs.”

Source: RevenueBase Database · checked Sep 14, 2026
7Partial evidenceSurabaya, IndonesiaHQ checked Sep 14, 202611-5012 contacts →

Partial evidence

“At the Law Offices of Dr.”

Source: RevenueBase Database · checked Sep 14, 2026
8Partial evidenceWest Jakarta, IndonesiaHQ checked Sep 14, 202611-5010 contacts →

Partial evidence

“We are focusing in commercial litigation (bankruptcy, tort, breach of contract, labour / industrial relation, commercial-related crime, trade mark, patent, copyright, industrial…”

Source: RevenueBase Database · checked Sep 14, 2026
9Partial evidenceSouth Jakarta, IndonesiaHQ checked Sep 14, 20261-104 contacts →

Partial evidence

“WINURISKA, PRABAWA & Partners is a boutique law firm specializing in the field of IP law based in Jakarta, Indonesia.”

Source: RevenueBase Database · checked Sep 14, 2026

Showing 9 of 54 patent law firms based in Indonesia

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Patent law firms based in Indonesia at a glance

As of Sep 14, 2026
23.3%Verified-email coverage
8.9Average contacts per company
11-50Median size (employees)
16.7%Largest-city concentration · Dki Jakarta
Sep 14, 2026Page data refreshed

Companies by employee count

1-10
23
11-50
25
51-200
2
201-500
3
501-1,000
1

Email recency for this list is measured worldwide rather than for Indonesia, so it is reported there. Company counts and contact totals on this page are exact for Indonesia, over 54 companies.

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 patent law firms, 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 Indonesia whose own description of what they do matches “patent law firms”. 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 patent law firms), 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 patent law firms, and records with no verified work email. Companies headquartered outside Indonesia 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, 112 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 14, 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 patent law firms, 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 patent law firms are there based in Indonesia?

RevenueBase identified 54 patent law firms headquartered in Indonesia 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?

AM Badar & AM Badar, headquartered in Pegangsaan Jakarta, tops this list with the largest team on record.

Which city has the most patent law firms?

Dki Jakarta leads with 9 headquartered companies, followed by Jakarta (7) and Jakarta Selatan (3).

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 112 verified decision-maker contacts tracked across these 54 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 14, 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 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.