Table of content

Overview

Top IT consulting firms (2021)

Brief definitions and rankings of best IT consulting firms in the industry

Looking for where to begin with Information Technology (IT) consulting? This article will provide brief definitions and rankings of best IT consulting firms in the industry.

IT consulting overview

What is IT consulting?

In management consulting, IT consultants help clients solve business and operational problems through the implementation of Information Technology.

IT consulting is an industry classification with different functions including strategy consulting, architecture consulting and operation consulting, and IT consulting firms can come from various “tiers” (MBB, Big 4, boutique, etc.).

IT consultants can work as an independent consultant or at consulting firms with others. These firms can range from small, boutique firms that specialize in healthcare to a global network with specific divisions handling the IT industry.

Compensation

On average, an IT consultant can make $73,989 a year (approximately $35.57 an hour). However, depending on your experience, qualifications and seniority, the average annual salary can be as low as $27,000 or up to $119,000.

Some fringe benefits that consulting firms can offer are sick leaves, vacations, payroll taxes, travel reimbursements, etc.

Top IT strategy consulting firms

The following lists are sourced from Vault.com and Consultancy.org and compiled for the US, EU and Asia regions.

Vault.com annually invites all consultants in a specific region to rank top consulting firms in that area. The score is based on the percentage of consultants voting for a firm. The consultants can vote for up to 3 firms and can not vote for their own.

Consultancy.org is a global network that provides information for consultant across industries. The consultancy.org network includes consulting.us, consultancy.eu, consultancy.asia

Top IT Strategy Consulting Firms
(2021 – US – vault.com)

Rank
Score (%)
Name
1
49.63
Accenture
2
31.24
Deloitte Consulting LLP
3
29.14
IBM Global Services
4
18.34
McKinsey & Company
5
12.84
Boston Consulting Group
6
11.11
PwC Advisory/Strategy&
7
9.80
Bain & Company
8
8.65
Capgemini
9
7.29
SAP Services (IT Consulting)
10
6.34
Booz Allen Hamilton
11
6.34
Gartner, Inc.
12
5.77
Infosys Ltd.
13
7.71
Cognizant
14
5.19
Tata Consultancy Services
15
4.66
Lockheed Martin Corporation (IT Consulting)
16
4.19
KPMG LLP (Advisory)
17
04.04 
General Dynamics Information Technology
18
3.93
BAE Systems North America
19
4.88
Slalom Consulting
20
3.62
Northrop Grumman Corporation (IT Consulting)
21
3.62
Protiviti

Top IT Strategy Consulting Firms
(2021 – EU – vault.com)

Rank
Score (%)
Name
1
67.99
Accenture Europe
2
35.31
IBM Global Services Europe
3
23.27
Capgemini Europe
4
19.31
McKinsey & Company Europe
5
18.81
Boston Consulting Group Europe
6
16.01
Deloitte (European Consulting Practice)
7
9.08
Gartner, Inc.
8
7.43
BearingPoint Europe
9
7.26
Bain & Company Europe
10
5.78
Infosys Ltd. Europe
11
5.45
Atos Origin Europe
12
5.28
EY (Ernst & Young) Consulting Practice Europe
13
4.95
Cognizant Europe
14
4.95
Tata Consultancy Services Europe
15
3.63
PwC (PricewaterhouseCoopers) International Ltd.

Rank
Score (%)
Name
1
38.59
Accenture Asia
2
20.00
IBM Global Services Asia
3
18.38
RSM International Asia
4
16.97
Atos Origin Asia
5
16.97
MindTree Ltd. Asia
6
16.97
Protiviti Asia-Pacific
7
14.34
Scope International
8
13.13
Infosys Ltd. Asia
9
9.29
ABeam Consulting Ltd.
10
9.29
Deloitte (Asia Consulting Practice)

Top IT Strategy Consulting Firms
(2021 – US – consulting.us)

Rank
Name
1
Accenture
2
Deloitte
3
Trianz
4
McKinsey & Company
5
Boston Consulting Group
6
PA Consulting Group
7
EY
8
KPMG
9
PwC
10
Bain & Company
11
Capco
12
Cordence Worldwide
13
Oliver Wyman
14
Roland Berger
15
Alvarez & Marsal
16
Analysys Mason
17
Emerton
18
Nextcontinent
19
Strategy&

Top IT Strategy Consulting Firms
(2021 – EU – consultancy.eu)

Rank
Name
1
Accenture
2
Deloitte
3
Trianz
4
McKinsey & Company
5
Boston Consulting Group
6
PA Consulting Group
7
EY
8
KPMG
9
PwC
10
Bain & Company
11
Capco
12
Cordence Worldwide
13
Oliver Wyman
14
Roland Berger
15
Alvarez & Marsal
16
Analysys Mason
17
Emerton
18
Nextcontinent
19
Strategy&

Top IT Strategy Consulting Firms
(2021 – Asia – consultancy.asia)

Rank
Name
1
Analysys Mason
2
Boston Consulting Group
3
Deloitte
4
McKinsey & Company
5
KPMG
6
Bain & Company
7
Cordence Worldwide
8
Alvarez & Marsal
9
Nextcontinent
10
Strategy&

Top IT operations consulting firms 

Top IT Operations Consulting Firms
(2021 – US – vault.com)

Rank
Score (%)
Name
1
49.83
Accenture
2
31.52
Deloitte Consulting LLP
3
30.20
IBM Global Services
4
10.51
McKinsey & Company
5
10.33
Capgemini
6
9.70
SAP Services (IT Consulting)
7
9.53
PwC Advisory/Strategy&
8
8.27
Boston Consulting Group
9
7.58
Cognizant
10
7.52
Tata Consultancy Services
11
7.46
Infosys Ltd.
12
7.18
Bain & Company
13
6.37
Lockheed Martin Corporation (IT Consulting)
14
4.59
Booz Allen Hamilton
15
4.31
BAE Systems North America
16
4.31
KPMG LLP (Advisory)
17
4.08 
Northrop Grumman Corporation (IT Consulting)
18
3.96
Slalom Consulting
19
3.73
General Dynamics Information Technology
20
3.62
Science Applications International Corporation (SAIC) (IT Consulting)

Top IT Operations Consulting Firms
(2021 – EU – vault.com)

Rank
Score (%)
Name
1
65.76
Accenture Europe
2
41.05
IBM Global Services Europe
3
25.88
Capgemini Europe
4
16.34
Deloitte (European Consulting Practice)
5
9.92
McKinsey & Company Europe
6
9.53
Boston Consulting Group Europe
7
9.34
Tata Consultancy Services Europe
8
8.75
Infosys Ltd. Europe
9
8.37
BearingPoint Europe
10
8.17
Atos Origin Europe
11
6.61
EY (Ernst & Young) Consulting Practice Europe
12
4.86
Gartner, Inc.
13
4.86
KPMG (Europe Consulting Practice)
14
4.67
Cognizant Europe
15
4.47
PwC (PricewaterhouseCoopers) International Ltd.
16
4.47
Wipro Limited Europe

Top IT Operations Consulting Firms
(2021 – Asia – vault.com)

Rank
Score (%)
Score (%)
1
37.04
Accenture Asia
2
18.52
IBM Global Services Asia
3
18.52
RSM International Asia
4
18.08
Atos Origin Asia
5
17.21
MindTree Ltd. Asia
6
16.34
Protiviti Asia-Pacific
7
13.73
Scope International
8
12.64
Infosys Ltd. Asia
9
11.11
Deloitte (Asia Consulting Practice)
10
10.46
ABeam Consulting Ltd.

Top IT architecture consulting firms

Top IT Architecture Consulting Firms
(2021 – US – consulting.us)

Rank
Name
1
Accenture
2
Deloitte
3
Trianz
4
PA Consulting Group
5
Analysys Mason
6
Boston Consulting Group
7
Capco
8
Cordence Worldwide
9
EY
10
McKinsey & Company
11
Nextcontinent
12
PwC

Top IT Architecture Consulting Firms
(2021 – EU – consultancy.eu)

Rank
Name
1
Anderson Macgyver
2
Cordence Worldwide
3
Horváth & Partners
4
Deloitte
5
Analysys Mason
6
Capco
7
Coeus Consulting
8
convedo
9
DMW
10
McKinsey & Company
11
Nextcontinent

Top IT Architecture Consulting Firms
(2021 – Asia – consultancy.asia)

Rank
Name
1
Deloitte
2
Analysys Mason
3
Boston Consulting Group
4
Cordence Worldwide
5
McKinsey & Company
6
Nextcontinent

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