These New Delhi-based companies primarily offer professional services, spanning business consulting, IT services, financial services, and engineering. The list includes a mix of established firms and mid-sized enterprises. Notable companies include ABC Consultants, which specializes in executive search; Grant Thornton Bharat LLP, providing assurance, tax, and advisory services; and Engineers India Limited, an engineering consultancy focused on oil and gas.
A clear pattern among these companies is their specialization in various facets of infrastructure development. Several firms, such as WAPCOS Limited official, LEA Associates South Asia Private Limited, and Intercontinental Consultants and Technocrats Pvt. Ltd., focus on civil engineering, water resources, power, and project management for infrastructure projects.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
ABC Consultantsabcconsultants.in
Providing executive search and talent advisory services to help multinational and Indian businesses hire top-tier leadership talent. |
14,629 | |||
| 2 |
Grant Thornton Bharat LLPgrantthornton.in
An Indian professional services provider with a client-centric approach, offering end-to-end business solutions through a sector-first approach in Assurance, Tax, Advisory, and Consulting |
8,634 | |||
| 3 |
Genpact India Private Limited Delhionlinecareer360.com
Global professional services firm leveraging digital and data to drive competitive advantage through digital transformation initiatives |
8,470 | |||
| 4 |
Engineers India Limitedengineersindia.com
A leading engineering consultancy providing design, engineering, procurement, construction, and project management services primarily focused on oil & gas, petrochemical, and other industries globally |
4,773 | |||
| 5 |
Protiviti India Member Firmprotiviti.com
A global consulting firm providing expertise in finance, technology, operations, data, digital, legal, governance, risk, and internal audit to clients worldwide |
2,756 | |||
| 6 |
NTT DATA GLOBAL DELIVERY SERVICES PRIVATE LIMITEDnttdata.com
NTT DATA Global Delivery Services Private Limited is headquartered in New Delhi, India, providing global delivery services |
2,573 | |||
| 7 |
ASAbakertilly.in
A leading accounting firm in India, part of global network, offering services in tax, assurance, accounting, business support, GST compliance, ESG, risk advisory, and restructuring |
2,073 | |||
| 8 |
Assystem in Indiaassystemstup.com
Leading the energy transition in India through engineering and digital solutions for low-carbon energy, transport, and infrastructure projects |
2,023 | |||
| 9 |
WAPCOS Limited officialwapcos.co.in
A consultancy firm providing services in water resources, power, and infrastructure sectors globally, with a focus on cost-effective solutions and timely project delivery |
1,900 | |||
| 10 |
Walker Chandiok & Co LLPwalkerchandiok.in
A chartered accountancy firm located in Gurugram, Haryana, India, providing professional accounting services |
1,835 | |||
| 11 | 
Chartered Accountantsomandjaswani.com
Chartered Accountants providing a wide range of services including audits, tax consultancy, company law, legal consultancy, trust/NGO advisory, project reports, and more |
1,794 | |||
| 12 |
Rodic Consultants Private Limitedrodicconsultants.com
A leading engineering firm specializing in infrastructure digital transformation, offering services such as advisory, design, project management, and construction supervision across India |
1,730 | |||
| 13 |
IPE Global Limitedipeglobal.com
A global group offering diverse consulting services with 1,100+ experts, implementing over 1,000 projects in 100 countries for sustainable development |
1,542 | |||
| 14 |
LEA Associates South Asia Private Limitedlea.ca
A premier engineering and management consulting organization offering services in infrastructure development, planning, and project management across various sectors globally |
1,469 | |||
| 15 |
Intercontinental Consultants and Technocrats Pvt. Ltd.ictonline.com
An engineering consultancy based in New Delhi, India, offering global solutions in project management and design for various infrastructure developments |
1,380 | |||
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 |
TNItrainersnetwork.in
Specializing in customized corporate training, business coaching, and workshops to enhance efficiency, productivity, leadership, motivation, goal setting, and communication skills |
1,208 | |||
| 17 |
TCILtcil.net.in
A government-owned telecommunications consulting firm operating globally in over 55 countries since 1978, under the Ministry of Communications, India |
1,193 | |||
| 18 |
SS Kothari Mehta & Cosskmin.com
A multi-location chartered accountant firm offering a range of professional services including audit, tax, M&A advisory, IT risk advisory, and regulatory compliance for diverse clients |
1,147 | |||
| 19 |
Intertek Indiaintertek.com
Global provider of Total Quality Assurance solutions for industries, offering innovative testing, inspection, and certification services to ensure operational and supply chain excellence |
1,106 | |||
| 20 |
Nippon Koei India Private Limitednkindia.in
Global engineering group with 75 years of experience in planning, design, and project management for major infrastructure projects worldwide |
1,035 | |||
| 21 |
Lakshmikumaran and Sridharan attorneyslkslaw.com
A leading law firm in India with expertise in corporate & commercial laws, dispute resolution, taxation, and intellectual property for over 35 years |
984 | |||
| 22 |
Nangia & Co LLPnangia.com
Leading CA firm in India offering Audit, Tax, Advisory, Cyber Security, and Forensic services with a team of over 1000 professionals focused on client success |
931 | |||
| 23 |
Market Xcelmarket-xcel.com
Global market research services including online panels, quantitative data collection, qualitative studies, and retail audits to provide customized insights for diverse business sectors. |
822 | |||
| 24 |
SKETS Studiosketsstudio.com
Global leader in BIM consultancy & design documentation services for architecture, interior design, and engineering industries, delivering value through expertise and innovation on luxury projects worldwide |
806 | |||
| 25 |
GA DIGITAL WEB WORD Private Limitedgadigital.in
An IT and services company based in New Delhi, India, specializing in digital web solutions and word processing for businesses |
730 | |||
| 26 |
Jacobs Engineering Group Incorporationjacobs.com
A construction company based in Delhi, India specializing in engineering services and projects across various industries |
705 | |||
| 27 |
InfoTechinfotechgeo.com
A leading IT company in India, specializing in geospatial and engineering solutions with industry certifications, offering a wide range of services |
692 | |||
| 28 | 680 | ||||
| 29 |
Delhi Integrated Multi Modal Transit System Ltd. (DIMTS)dimts.in
An urban transport and infrastructure development consultancy providing Concept-to-Commissioning services, Intelligent Transport System solutions, and asset management for government projects |
666 | |||
| 30 | 664 | ||||
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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.
More company lists in New Delhi
- The largest companies in New Delhi 1,941
- Manufacturers in New Delhi 256
- Multinational companies in New Delhi 239
- Education providers in New Delhi 218
- Public sector organisations in New Delhi 168
- Critical infrastructure operators in New Delhi 142
- Companies with a mobile app in New Delhi 134
- Companies with in-house R&D in New Delhi 126
- Publicly traded companies in New Delhi 113
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- Hotel and hospitality groups in New Delhi 64
- Healthcare providers in New Delhi 63
- Higher Education companies in New Delhi 63
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The same list elsewhere in India
- Professional services firms in India 1,028
- Professional services firms in Maharashtra 301
- Professional services firms in Karnataka 161
- Professional services firms in Tamil Nadu 82
- Professional services firms in Uttar Pradesh 81
- Professional services firms in Gujarat 72
- Professional services firms in Haryana 72
- Professional services firms in Telangana 29
- Professional services firms in Mumbai 191
- Professional services firms in Bengaluru 152
- Professional services firms in Gurugram 67
- Professional services firms in Noida 67
- Professional services firms in Pune 66
- Professional services firms in Chennai 64
- Professional services firms in Ahmedabad 52
- Professional services firms in Hyderabad 27