These Jakarta-based companies are professional services firms, predominantly large and mid-sized enterprises. Many specialize in business consulting, accounting, and human resources. Notable firms include PT. SUCOFINDO, offering inspection and certification services; PwC Indonesia, providing assurance and advisory services; and PT Infomedia Solusi Humanika (ISH), specializing in HR solutions.
A significant number of these companies, such as PT. SUCOFINDO, LPPI - Your Strategic Partner, and Carsurin, were founded between the 1950s and 1970s, indicating a well-established presence in the Indonesian professional services sector. The concentration in Jakarta suggests it is a central hub for these operations.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
PT. SUCOFINDOsucofindo.co.id
A leading Indonesian company offering inspection, testing, certification, training, and consultancy services across various sectors domestically and globally |
6,862 | |||
| 2 |
PwC Indonesiapwc.com
Provider of industry-focused assurance, tax, advisory, and consulting services to clients in Indonesia, utilizing global resources and expertise to deliver value |
3,121 | |||
| 3 |
PT Infomedia Solusi Humanika (ISH)ish.co.id
Specializing in HR solutions, this subsidiary manages 18,000 employees, offering BPO services in HR processes, solutions, and consulting |
2,927 | |||
| 4 |
PT Surveyor Indonesiaptsi.co.id
An established organization providing independent assurance services, specializing in various sectors such as energy, infrastructure, and mining through innovative technological solutions |
2,721 | |||
| 5 |
LPPI - Your Strategic Partnerlppi.or.id
An educational institution founded by Bank Indonesia to enhance competencies of Indonesian bankers in managing banks and financial industry |
1,662 | |||
| 6 |
KPMG Indonesiakpmg.com
A leading advisory firm in Indonesia offering services in taxation, business structuring, licensing, company formation, customs duties, and industry-specific consulting |
1,380 | |||
| 7 |
PT. JGC Indonesiajgc-indonesia.com
An EPC subsidiary in oil and gas field, fully owned by a reputable global organization, specializing in engineering, procurement, and construction |
1,351 | |||
| 8 |
BDO in Indonesiabdo.co.id
Leading global provider of professional services offering audit, tax, advisory, and specialized services to clients worldwide through a team of skilled professionals |
1,336 | |||
| 9 |
RSM INDONESIArsm.global
A leading provider of audit, tax, and consulting services in Indonesia, focusing on delivering high quality standards and supporting client growth |
1,224 | |||
| 10 |
Proyek Betaproyekbeta.com
Specializing in strategic accounting and tax management consulting for high-growth companies in South East Asia after acquisition by a Singapore-based software company |
1,155 | |||
| 11 |
Kantor Notaris & PPAT Eriani
Notarial legal services providing expertise in Central Jakarta, Indonesia for notarial deeds, legal documentation, and property conveyancing |
987 | |||
| 12 |
Carsurincarsurin.com
Trusted international provider of quality technical solutions in industries like mining, oil & gas, and agriculture through inspection, testing, and certification services |
959 | |||
| 13 |
PT Pertamina Training & Consultingpertamina-ptc.com
A provider of human capital and management services in Indonesia, specializing in consulting, training, workforce solutions, security services, and organizational development assessments |
958 | |||
| 14 |
PT Pertamina Training and Consultingpertamina-ptc.com
With over 20 years of experience, we provide quality human capital and management services in Indonesia through consulting, training, events, workforce solutions, and assessments |
922 | |||
| 15 |
PT Yodya Karya (Persero)g20sideevents.id
A civil engineering organization based in Indonesia specializing in various construction projects and infrastructure development |
839 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 16 |
PT OS SELNAJAYA INDONESIAos-selnajaya.com
Provider of comprehensive human resources, legal, and education services in Indonesia for Japanese businesses, focusing on company setup and operations |
808 | |||
| 17 |
PT Pertamina Maintenance & Construction (PertaMC)pertamc.com
Specializes in maintenance and construction services, providing energy solutions for various industries through its subsidiary |
800 | |||
| 18 |
PT Radiant Utama Interinsco Tbkradiant.co.id
Specializing in Non Destructive Testing, the company started as an inspection department and evolved to provide a wide range of inspection services |
774 | |||
| 19 |
PT Agrinas Jaladri Nusantara (Persero)viramakarya.co.id
A state-owned entity in Indonesia providing engineering management consulting services in various fields and projects |
767 | |||
| 20 |
PKF Hadiwinatapkfhadiwinata.com
A top 10 accounting and professional services provider in Indonesia, part of a global network offering audit, tax, and advisory services to diverse clients worldwide |
717 | |||
| 21 |
PT Solusi Energy Nusantarapt-sena.co.id
A provider of engineering services in the oil and gas industries, specializing in pipeline, mechanical, electrical, and civil projects |
704 | |||
| 22 |
PT Tracon Industritracon.co.id
An integrated industrial services provider offering engineering consultancy, industrial services, and package equipment supply for various industries including oil & gas and power plants |
669 | |||
| 23 |
PPM Manajemenppm-manajemen.ac.id
Established in 1967, the organization aims to contribute to Indonesia's development through management education, training, consultancy, publishing, research, and seminars |
595 | |||
| 24 |
PT. EXA Mitra Solusiexamitrasolusi.co.id
EXA offers solutions to help clients streamline business processes and maintain high service levels for their customers, allowing them to focus on their core operations |
593 | |||
| 25 |
Packet Systems Indonesiapacket-systems.com
A leading ICT systems integrator in Indonesia specializing in Data Center, Collaboration, Network Infrastructure, Information Security, and Software Solution services |
544 | |||
| 26 |
PT Wiratmanwiratman.co.id
A multidisciplinary consulting business established in 1976 in Jakarta, Indonesia, offering professional services to private and public sector clients worldwide |
498 | |||
| 27 | 
PT Booker Tate Indonesiabooker-tate.co.uk
Global leader in sugar, ethanol, and agribusiness projects, offering development, management, and technical services, including irrigation studies and support services |
492 | |||
| 28 |
Valdo Inc.valdoinc.com
A leading Integrated Six Sigma Managed Service Company, specializing in business process management, technology outsourcing, and customer relationship management solutions |
471 | |||
| 29 |
Crowe Indonesiacrowe.com
A global accounting and technology firm with over 600 professionals, serving multinational clients with award-winning expertise in strategic risk consulting and international tax |
465 | |||
| 30 |
PT. Mitra Insan Sejahtera (Pharos Group)karirmis.com
PT Mitra Insan Sejahtera is an experienced recruitment center serving clients in various industries by connecting them with competent professionals |
462 | |||
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How this list is built
Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 12, 2026.
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