These Singapore-based consulting firms are predominantly large companies, many with a global presence, offering a range of specialized services. Quest Global provides engineering solutions, TDCX focuses on digital customer experience, International SOS offers health and security risk management, and Khatib & Alami is a multidisciplinary design consultancy. SJ Group works on urban spaces, while PERSOL APAC specializes in HR solutions.
A notable pattern among these firms is their strong focus on technology and digital transformation. Companies like Mindsprint, NTT DATA Asia Pacific, and ADA highlight their use of AI, cloud development, and data analytics to address complex business challenges across various industries.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Quest Globalquestglobal.com
Provides comprehensive engineering solutions across multiple industries, leveraging global expertise and digital technologies to solve complex challenges. |
21,161 | |||
| 2 | 16,816 | ||||
| 3 |
International SOSinternationalsos.com
Customized health and security risk management solutions, immediate crisis response, compliance support, and wellbeing services for global workforce protection. |
12,706 | |||
| 4 |
Khatib & Alamikhatibalami.com
A multidisciplinary design consultancy focused on professional excellence, sustainability, and innovation in delivering projects across various regions worldwide |
7,600 | |||
| 5 |
SJ Groupsjgroup.com
Designing and delivering quality housing, infrastructure, and sustainable urban spaces to create thriving communities and businesses worldwide. |
7,158 | |||
| 6 |
PERSOL APACpersolkelly.com
Leading provider of integrated staffing and HR solutions across Asia-Pacific, combining local expertise with technology to support workforce needs. |
4,104 | |||
| 7 |
KPMG Singaporekpmg.com.sg
Global network of independent firms providing audit, tax, and advisory services with legal separation and local responsibility in 142 countries. |
3,310 | |||
| 8 |
Mindsprintmindsprint.com
Providing AI-driven technology solutions including digital transformation, cloud development, cybersecurity, and automation for diverse global industries. |
3,135 | |||
| 9 |
PwC Singaporepwc.com
Building trust in society, solving important problems, delivering quality assurance, advisory, and tax services across 152 countries with nearly 328,000 people. |
2,595 | |||
| 10 |
Meinhardt Groupmeinhardtgroup.com
Asian-based engineering company with global reach, providing innovative and sustainable solutions for complex projects in various industries worldwide |
2,540 | |||
| 11 |
ADAadaglobal.com
Helping clients leverage data and AI to drive digital transformation, enhance marketing, and solve business challenges with strategic insights. |
1,942 | |||
| 12 |
NTT DATA Asia Pacificnttdata.com
Global business and technology leader providing AI, digital infrastructure, cloud, security, and consulting services to help organizations transition sustainably into digital futures. |
1,866 | |||
| 13 |
Accenture Southeast Asiaaccenture.com
A global professional services company helping businesses and governments achieve digital transformation, optimize operations, drive revenue growth, and enhance citizen services |
1,549 | |||
| 14 |
IQVIA Asia Pacificiqvia.com
Provider of advanced analytics, technology solutions, and clinical research services to life sciences companies for improved health outcomes. |
1,457 | |||
| 15 |
PwC South East Asia Consultingpwc.com
Consulting professionals across Southeast Asia combining people and technology to solve business challenges, unlock value, and build societal trust. |
1,169 | |||
| 16 |
Hytechhytechc.com
Leading consultancy driving digital transformation for fintech businesses Specializing in strategic consulting, technology solutions, and data-driven services for global organizations |
1,084 | |||
| 17 |
InCorp Globalincorp.asia
Experts in business incorporation, secretarial & compliance, accounting & finance outsourcing, PEO, HR payroll, bookkeeping, taxation, immigration, VCC, family offices, business advisory, ESG, and risk assurance. |
988 | |||
| 18 |
Thakral Onethakralone.com
Delivers technology consulting, bespoke software solutions, data analytics, and cloud adoption strategies to financial services, telecommunications, healthcare, and government sectors across Asia. |
747 | |||
| 19 |
Apar Technologiesapartechnologies.com
Global IT services company providing AI-powered automation, data analytics, cloud, CRM, and custom application development for business transformation. |
678 | |||
| 20 |
RSM - Singaporersm.global
Providing audit, tax, advisory, and business support services to growing and international businesses, focusing on profit improvement and compliance. |
644 | |||
| 21 | 614 | ||||
| 22 |
Dalbergdalberg.com
Global advisory group providing innovative investment, research, analytics, design services to governments, companies, and communities for sustainable impact. |
593 | |||
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. | |||||
| 23 |
Logicalis Asia Pacificap.logicalis.com
digital services, solutions provider, digital transformation for its customers, IT industry drivers such as security, cloud, data management, IoT. |
539 | |||
| 24 | 524 | ||||
| 25 |
Web Synergieswebsynergies.com
Global provider delivering end-to-end IT services, business transformation consulting, and custom software development through strategic technology implementation across multiple international offices and industries. |
506 | |||
| 26 |
EPI-USEepiuse.com
Specializes in designing, building, and implementing SAP HCM and payroll systems for multinational corporations and public sector agencies worldwide. |
501 | |||
| 27 |
Tecturatectura.com
Provides business consulting services to mid-sized companies and large enterprises globally, helping clients create value and achieve business goals through technology and industry expertise. |
446 | |||
| 28 |
Asian Technology Solutionsasian-technology.com
Providing talent acquisition, consulting, IT services, cybersecurity, and fraud prevention solutions to businesses across Asia, Middle East, and Australia. |
432 | |||
| 29 |
CTC Global Pte Ltdctc-g.com.sg
Providing end-to-end IT solutions including system integration, consultation, and IT outsourcing services for organizations in Singapore. |
428 | |||
| 30 | 416 | ||||
| 31 |
Artharthtechglobal.com
Provides innovative digital solutions and services for AEC professionals to transition from manual processes to data-driven workflows, enhancing productivity and operational margins. |
401 | |||
| 32 |
CloudKeepercloudkeeper.com
Comprehensive cloud cost optimization partner offering consulting, AI-driven management, analytics, and usage optimization for AWS and Google Cloud. |
399 | |||
| 33 |
Helius Technologieshelius-tech.com
Provides IT services, talent and infrastructure on cloud, centers of excellence, permanent placements, and staffing augmentation for diverse industries across ASEAN. |
361 | |||
| 34 |
Accord Innovationsaccordinnovations.com
Accord Innovations offers high-quality IT products, services, and consulting globally, focusing on client satisfaction and delivering measurable business outcomes |
358 | |||
| 35 |
Baker Tilly Singaporebakertilly.sg
Provides assurance, tax, deal advisory, governance, risk, restructuring, outsourcing, and corporate secretarial services to diverse businesses. |
339 | |||
| 36 |
Knight Frank Singaporeknightfrank.com.sg
A global real estate consultancy in Singapore, providing integrated solutions, personalized advice, and innovative strategies to enhance investments, living spaces, and work environments |
325 | |||
| 37 |
Rolling Arraysrollingarrays.com
Provides HR transformation consulting, SAP SuccessFactors implementation, HR business consulting, change adoption, system support, and HRIS integration across Asia. |
325 | |||
| 38 |
Renoir Consultingrenoir.ycp.com
A global change management consulting company with over 25 years of experience, serving as clients' preferred transformation partner for real outcomes and sustainable change |
313 | |||
| 39 |
Aon Centre for Innovation and Analytics (ACIA)aon.com
Global investment in analytics delivering data-driven insights to clients, reducing volatility, and maximizing performance through risk, retirement, and health solutions. |
309 | |||
| 40 |
Trangile Servicestrangile.com
A global tech firm specializing in omnichannel solutions for retail, supply chain, and logistics, offering expertise in Oracle Retail, INFOR WMS, and more |
296 | |||
| 41 |
GECO Asia Pte Ltdgeco.asia
Providing expert IT consultancy and high-end technology resources across Asia, specializing in AI, Blockchain, Cloud, and Data Science. |
242 | |||
| 42 |
U3 Infotechu3infotech.com
Leading IT consulting and talent management services, delivering agile, scalable solutions across diverse industries for optimized operations, growth, and profitability. |
241 | |||
| 43 |
Activate Interactiveactivate.sg
Technology consultancy providing end-to-end application development, cloud solutions, and UI/UX design to drive digital innovation and improve population health through holistic engineering. |
129 | |||
| 44 |
Information Officerinformationofficer.com
A company specializing in Agile Development, IT Service Management, and Cloud Computing for digital transformation, using Atlassian tools and Agile methodologies |
15 | |||
| 45 |
Dealxpert Sales Performancedealxpert.io
It builds sales capabilities in Asia, offering tailored solutions and innovative tools for B2B sales organizations to enhance performance. |
1 | |||
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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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