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Grant Thornton Vs Deloitte – 7 Differences

When choosing a reputable consulting firm, Grant Thornton and Deloitte are prominent names that often come to a bright career seeker’s mind. Both organizations have established themselves as industry leaders, offering clients a wide range of services worldwide. However, some key differences set them apart.

Deloitte is a gigantic firm and the biggest among the ‘Big 4’, having an enormous global presence and client base. In comparison, Grant Thornton is a mid-tier consulting company offering better work-life balance and collaborative culture. 

7 significant differences between Deloitte and Grant Thornton are:

  • Size and global presence
  • Organizational structure
  • Focus and specialization
  • Culture and work environment
  • Industry expertise
  • Though leadership and innovation
  • Client engagement approach

In this article, I will compare Grant Thornton with Deloitte, considering these seven key differences and factors. 

Deloitte building seen from air in downtown Los Angeles at sunset

1. Size and Global Presence

Grant Thornton and Deloitte are significant accounting and advisory firms but differ in size and global presence.

Grant Thornton operates in more than 140 countries. While it is one of the largest accounting firms worldwide, it is relatively small compared to Deloitte’s global presence. (Source)

Moreover, when comparing both firms’ revenue and global workforce, the edge again goes to the Big 4’s leader (Deloitte). 

Deloitte leads with a global presence in over 150 countries. 


It is the largest professional services firm among the ‘Big 4,’ providing services to a vast client base in the following sectors:

  • Auditing
  • Taxation
  • Consulting
  • Advisory

Here is the table demonstrating the difference between both firms’ revenue, workforce, and global presence:

FactorDeloitte Grant Thornton
Revenue$59.3 billion$1.9 billion
Countries served150140

2. Organizational Structure

Grant Thornton and Deloitte have distinct organizational structures. 

Grant Thornton operates as a network of independent firms affiliated with Grant Thornton International Ltd. Each member firm is locally owned and managed, allowing flexibility and agility in serving clients within their respective markets. 


Conversely, Deloitte operates as a global network of member firms that are legally separate and independent entities. However, they collaborate closely under the brand name and share common standards, methodologies, and technologies.

3. Focus and Specialization

Grant Thornton places a significant emphasis on serving middle-market clients. The firm is known for its proficiency in providing audit, tax, and advisory services to:

  • Privately held businesses
  • Government entities
  • Nonprofit organizations

On the other hand, Deloitte offers a broad range of services across various industries and sectors. 

This firm caters to clients of all sizes, including multinational corporations, governments, and public sector organizations. 

Deloitte has specialized teams focusing on the following areas:

  • Audit
  • Assurance
  • Tax matters
  • Business Consulting
  • Strategy making
  • Risk advisory 


4. Culture and Work Environment

Grant Thornton promotes a collaborative and entrepreneurial culture, valuing the input and ideas of its employees.

The firm also recognizes the importance of work-life balance and strives to create an environment that supports the well-being of its staff. 

Employees are given opportunities for professional growth and development, allowing them to enhance their skills and expertise continuously.

In comparison, Deloitte is renowned for its inclusive work environment that celebrates diversity and fosters a sense of belonging. The firm strongly emphasizes teamwork, recognizing collaboration is key to exceptional client service.

The company’s commitment to employee development also reflects in its extensive training and development programs, which aim to equip its workforce with the knowledge needed to flourish in their careers.

One of Deloitte’s managers says, “We value diversity and inclusion at Deloitte. We foster a work environment where everyone feels respected and valued, creating a strong sense of belonging and driving our collective success.” (Source)

Deloitte building in downtown Los Angeles at sunset.
Deloitte is renowned for its inclusive work environment

5. Industry Expertise

Grant Thornton has expertise in various industries, including:

  • Manufacturing
  • Retail
  • Technology
  • Healthcare
  • Financial services

The firm’s professionals possess deep industry knowledge and provide tailored solutions for industry-specific challenges. 


In comparison, Deloitte is renowned for its industry specialization. The firm has dedicated teams that focus on sectors such as:

  • Technology (Blockchain and Data Science)
  • Media and telecommunications
  • Financial planning and strategies
  • Healthcare and sustainable environment
  • Energy and power sectors 

Deloitte’s industry experts offer insights and innovative solutions to help clients navigate complex business landscapes. (Source)

In short, Grant Thornton provides targeted solutions to clients in specific sectors. However, Deloitte’s specialized teams offer in-depth industry facts and a deep understanding of the unique challenges faced by organizations in various sectors.

6. Thought Leadership and Innovation

Both Grant Thornton and Deloitte emphasize thought leadership and innovation. However, each firm uses a unique approach.

Grant Thornton actively contributes to thought leadership initiatives, sharing insights and expertise through research papers, articles, and industry reports.

The firm focuses more on providing practical and actionable guidance to help clients navigate challenges and seize opportunities.

Deloitte invests in research and development, leveraging advanced technologies and analytics to drive business transformation and provide strategic insights to clients.

7. Client Engagement Approach

Grant Thornton takes a personalized approach to client engagement. The firm values building strong client relationships and strive to understand their unique needs, challenges, and goals. 

This approach allows them to deliver tailored solutions and provide hands-on support.

On the other side, Deloitte adopts a collaborative approach to client engagement. The firm encourages close collaboration with clients, working together to develop strategies and solutions that drive business success. 

Moreover, the company’s global network allows seamless coordination and access to diverse expertise.

In the end, here is a table summarizing the information above concisely and more understandably:

FactorsGrant ThorntonDeloitte
SizeRelatively smallerOne of the largest
Organizational StructureNetwork of independent firmsA global network of member firms
Focus and SpecializationMiddle-market clientsA diverse range of clients and industries
Culture and Work EnvironmentCollaborative and entrepreneurialInclusive and diverse

Summing Up

When considering a career at either Grant Thornton or Deloitte, evaluating their distinct differences is essential to determine which firm aligns best with your specific needs and objectives.

Grant Thornton may be the right fit if you seek an environment encouraging teamwork, innovation, and direct client interaction. While in case you want exposure to a wide range of customers, global opportunities, and a chance to work with industry-leading experts, choose Deloitte.


  • Will Bennett

    Will Bennett is a Cambridge graduate. He worked as a Consultant and Senior Consultant at Boston Consulting Group (BCG) in London. Will is the Founder of The Cambridge Consultant.