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Top 10 Consulting Firms:

We all know the big names but which of those manage to make it into the top ten management consulting firms, and why are they at the top?

The global consulting market is currently approaching an estimated worth around $155 billion and the 10 largest consulting firms retain a firm hold on the majority of market activity. So, whilst household names such as McKinsey and the BCG are what everyone dreams of having on their CV any of these ten would be amazing to work at.

1.      McKinsey & Company 


Revenue: $10+ billion (2018)

Number of offices: 127

Number of employees: 27,000


The undisputed leader of the consulting world is McKinsey. For many, this is the firm that has kickstarted the industry. They are headquartered in New York, but they have close to 130 offices giving them a hugely international atmosphere fitting for a global industry. McKinsey has a reputation for being very discreet about their client’s affairs with a culture which cultivates strong client-firm relations. Working at McKinsey is the dream of everyone who aspires to work in the industry.


Read our full overview of McKinsey here and if you are hoping to work at McKinsey read the three things you should know before the final round interview.


2.       The Boston Consulting Group 

Revenue: $5.6 Billion (2017)

Number of offices: 90

Number of employees: 14,000


The BCG comes second in many rankings. They do similar type of work to McKinsey but are known for their more stringent approach to analysis. BCG has decided to consolidate two of their Boston offices into one large headquarters this year (2018). With 90 offices in 50 countries, they have a very international outlook and are a great place for any aspiring consultant to work at.


Read our full overview of BCG here. 

3.       Bain & Company 

Revenue: $4.5 Billion (2017)

Number of offices: 56

Number of employees: 8,000


Bain closes the ‘Big Three’ consultancy companies which are always at the top of everyone’s lists. Like BCG is headquartered in Boston, but they have over 50 locations all around the world. It is a hugely desirable employer and does not require new consultants to specialise in a practice area which increases its appeal.


Read our full overview of Bain & Co here

4.       Deloitte Consulting

Revenue: $14.4 Billion (37% of the overall global revenue) 

Number of offices: Global network in 150 countries

Number of employees; 15,000


Deloitte Consulting is a part of the ‘Big Four’. Deloitte Touche Tohmatsu which is a multinational professional services network. Deloitte Consulting accounts for 37% of their worldwide revenue share. They are headquartered in New York with many locations all over the world which gives them a very international approach with their main focus areas being in human capital, strategy & operations, and technology.


5.       Monitor Group 

Revenue: part of Deloitte’s global revenue

Number of offices: 29

Number of employees: 1,500


Monitor group was acquired by Deloitte in 2012.  The group was founded by six entrepreneurs including the creator of Porters Five Forces, Michael Porter. The group is headquartered in Cambridge, MA. It has its own distinct strategy and leadership providing strategy consulting services to the senior management of major organizations and governments.

6.       Strategy& 


Revenue: $1.3 Billion

Number of offices: 61 Offices

Number of employees: 3,000


Strategy& focuses on strategy consulting. The firm was formerly known as Booz and Company but in 2014 they were acquired by PwC and are now part of the network. Strategy& is headquartered in New York with over 3,000 employees spread across 61 offices. With an extensive global network and being part of PwC, Strategy& has a distinct global outreach.

7.       Oliver Wyman 

Revenue: $1.9 Billion

Number of offices: 60

Number of employees: 4,500


Oliver Wyman is known for their focus on banking and financial services. The company is headquartered in New York and has an extensive network of offices in 27 countries making them a highly desired employer. It is typically ranked among the ten best consulting companies.


Read our full overview of Oliver Wyman here


8.       Roland Berger 

Revenue: $ 1,200 Million

Number of offices: 50

Number of employees: 2,400


Roland Berger, unlike all the other firms listed above, is a European firm which is headquartered in Munich. Their international reach spans 36 countries and over 50 offices. They advise clients on a wide range of issues such as strategy development and performance improvement. 

9.       L.E.K. 

Revenue: $500 Million

Number of offices: 21

Number of employees: 3,000


L.E.K. is a highly competitive management consulting firm which is heartened in London and Boston. Their main focus areas are corporate strategy, mergers and acquisitions, and operations. It is a hugely desirable employer being on top of many MBA students lists.


10.   A.T. Kearney 


Revenue: $1.1 Billion

Number of offices: 60

Number of employees: 3,500


A.T. Kearney has a presence in 40 countries with an impressive 60 offices. The firm can trace its history back to McKinsey. They split from McKinsey in 1939 and focused on operations, supply chain, and manufacturing. A.T. Kearney is headquartered in Chicago and like all other firms in our top 10 has a very wide global reach.

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