List of IT Services and IT Consulting Companies
Selling into IT Services and IT Consulting? Here are its companies, biggest first, including Tata Consultancy Services, Infosys and Cognizant. Open a company to see its revenue range, headcount, tech stack and the people to contact.
Company NameIndustryLocationFundingRevenueEmployees
$10B+
723K
$200M
$10B+
374K
$10B+
366K
$5.7B
$10B+
347K
$95K
$10B+
339K
$2.3B
$10B+
275K
$220M
$10B+
258K
$56B
$10B+
208K
$10B+
156K
$10B+
149K
$5.3B
$10B+
138K
$1B+
112K
$38B
$10B+
102K
$1B - $10B
96K
$756M
$10B+
91K
$2.9B
$10B+
91K
$2.1B
$10B+
85K
$1B - $10B
83K
$100M - $250M
75K
$1.2B
$10B+
71K
$330M
$10B+
68K
$75M
$10B+
68K
$500M
$10B+
62K
$10B+
60K
$225M
$10B+
56K
$11B
$10B+
53K
$250M - $500M
52K
$10B+
52K
$10B+
49K
$1B - $10B
48K
$3.4B
$10B+
48K
$1B - $10B
46K
$10B+
44K
$69M
$1B - $10B
44K
$509M
$1B - $10B
44K
$250M
$10B+
41K
$1B - $10B
37K
$68M
$1B - $10B
37K
$10B+
35K
$2.5B
$10B+
34K
$5.4M
$1B - $10B
33K
$10B+
33K
$10B+
32K
$10B+
31K
$531M
$10B+
30K
$19M
$1B - $10B
29K
$1B - $10B
29K
$10B+
29K
$173M
$10B+
28K
$500M - $1B
26K
$25M - $50M
26K
$6.8B
$10B+
25K
$50M - $100M
24K
$1B - $10B
24K
$10B+
24K
$10B+
24K
$50M - $100M
23K
$1.2B
$10B+
23K
$12M
$1B - $10B
23K
$1.1B
$1B - $10B
23K
$500M - $1B
22K
$1B - $10B
21K
$10B+
21K
$30M
$1B - $10B
21K
$10B+
21K
$437M
$1B - $10B
20K
$1B - $10B
20K
$1B - $10B
20K
$1B - $10B
20K
$50M - $100M
19K
$1B - $10B
19K
$59M
$10B+
19K
$10B+
18K
$154M
$1B - $10B
18K
$560M
$10B+
18K
$1B - $10B
17K
$10B+
17K
$1B - $10B
17K
$1.4B
$10B+
17K
$1B - $10B
17K
$1B - $10B
17K
$500M - $1B
16K
$1B - $10B
16K
$4B
$500M - $1B
16K
$1B - $10B
15K
$102M
$10B+
15K
$9M
$1B - $10B
15K
$521M
$1B - $10B
15K
$748M
$10B+
15K
$1B - $10B
15K
$824M
$10B+
15K
$10B+
15K
$5.8B
$1B - $10B
15K
$1B - $10B
14K
$1B - $10B
14K
$1B - $10B
14K
$280M
$1B - $10B
14K
$1B - $10B
13K
$10B+
13K
$77M
$1B - $10B
13K
About IT Services and IT Consulting companies
Which IT Services and IT Consulting companies are listed?
IT Services and IT Consulting companies of every size, from enterprises to startups, sorted by headcount so the biggest accounts come first. Companies on the list include Tata Consultancy Services, Infosys and Cognizant. Every company profile gives you revenue range, headcount, headquarters, tech stack and an employee directory with verified emails and phone numbers.
Where are IT Services and IT Consulting companies located?
IT Services and IT Consulting companies are most often headquartered in the United States, the United Kingdom, Germany, India, Australia and Canada.
What technologies do IT Services and IT Consulting companies use?
The tools most often found in the tech stacks of IT Services and IT Consulting companies include WordPress, Microsoft 365, Amazon Web Services, Google Cloud, Microsoft Azure and Google Workspace. Useful if you integrate with, complement or compete with one of them.
How do I reach decision makers at IT Services and IT Consulting companies?
Open a company to see its employee directory and email format, then use LeadIQ to get verified work emails and phone numbers for the people you want to reach and push them straight to your CRM or sequencer.
Insights based on LeadIQ data refreshed in September 2026.
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Top companies by employee count
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