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.

1. 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.

2. 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)

RankScore (%)Name
149.63Accenture
231.24
Deloitte Consulting LLP
329.14
IBM Global Services
418.34
McKinsey & Company
512.84
Boston Consulting Group
611.11
PwC Advisory/Strategy&
79.80Bain & Company
88.65Capgemini
97.29
SAP Services (IT Consulting)
106.34
Booz Allen Hamilton
106.34Gartner, Inc.
125.77Infosys Ltd.
137.71Cognizant
145.19
Tata Consultancy Services
154.66
Lockheed Martin Corporation (IT Consulting)
164.19
KPMG LLP (Advisory)
1704.04
General Dynamics Information Technology
183.93
BAE Systems North America
194.88
Slalom Consulting
203.62
Northrop Grumman Corporation (IT Consulting)
203.62Protiviti

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

13

4.95

Tata Consultancy Services Europe

15

3.63

PwC (PricewaterhouseCoopers) International Ltd.

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

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

4

16.97

MindTree Ltd. Asia

4

16.97

Protiviti Asia-Pacific

7

14.34

Scope International

8

13.13

Infosys Ltd. Asia

9

9.29

ABeam Consulting Ltd.

9

9.29

Deloitte (Asia Consulting Practice)

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

RankName

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)

RankName

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)

RankName

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&

3. Top IT Operations Consulting Firms 

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

RankScore (%)Name
149.83Accenture
231.52
Deloitte Consulting LLP
330.20
IBM Global Services
410.51
McKinsey & Company
510.33Capgemini
69.70
SAP Services (IT Consulting)
79.53
PwC Advisory/Strategy&
88.27
Boston Consulting Group
97.58Cognizant
107.52
Tata Consultancy Services
117.46Infosys Ltd.
127.18Bain & Company
136.37
Lockheed Martin Corporation (IT Consulting)
144.59
Booz Allen Hamilton
154.31
BAE Systems North America
154.31
KPMG LLP (Advisory)
174.08
Northrop Grumman Corporation (IT Consulting)
183.96
Slalom Consulting
193.73
General Dynamics Information Technology
203.62
Science Applications International Corporation (SAIC) (IT Consulting)

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

RankScore (%)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.

15

4.47

Wipro Limited Europe

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

RankScore (%)Name

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.

4. Top IT Architecture Consulting Firms

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

RankName

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)

RankName

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)

RankName

1

Deloitte

2

Analysys Mason

3

Boston Consulting Group

4

Cordence Worldwide

5

McKinsey & Company

6

Nextcontinent