London is is home to top consulting firms across industries and verticals. The city’s many esteemed consulting organizations provide a foundation for the city’s consulting sector, which supports global enterprises alongside up-and-coming startups that round out the local business ecosystem. Recent industry growth has shown the United Kingdom’s consulting revenue growth almost doubling in the last five years, with a 66 percent increase in consulting jobs during the same time period.
Financial services, technology and public sector consulting are the three leading areas in London, with the “Big Four” multinational consulting firms — Deloitte, PwC, KPMG, and EY — representing the majority of consulting business handled within the city. The companies on this list represent a slice of London’s consulting scene.
Consulting Companies in London
- NAVEX
- PwC
- Deloitte
- KPMG
- EY
- Sigmoid
- Zone & Co
- Celonis
Top Consulting Companies in London
PwC, formerly known as Pricewaterhouse Coopers, is a network of international professional services firms. Each firm operates independently, exists as a separate legal entity and offers a distinct service, such as board governance, business model reinvention, technology strategy and AI implementation. PwC is one of the world’s “Big Four” professional services firms.
Deloitte, one of the “Big Four,” is a multinational enterprise consulting firm that offers strategic guidance in business and financial services. Its internal divisions focus on tax, audit, financial advisory services and business strategy. Deloitte consultants work in teams, which allows them to provide holistic recommendations that consider the priorities of each division.
KPMG is one of the “Big Four” international accounting and professional services firms. It operates its network in 145 countries, employing over 250,000 team members in three service divisions: financial audit, tax and advisory. KPMG consulting offerings include deal advisory and capital advisory services, which are built to support companies through merger and acquisition processes.
Professional services firm EY works with businesses and high net worth individuals to provide accounting and consulting services. It is a member of the global “Big Four” group of leading accounting firms and consults on concerns, both broad and niche, including business risk assessment, supply chain logistics, digital transformation and audit strategy.
Capco is a business and technology consulting company that serves the financial services and energy industries. The company, which is owned by the leading Indian IT firm Wipro, offers digital transformation guidance to transition its clients from legacy systems to innovative uses of software. One of its primary modes of optimization is by way of “smartsourcing,” a sourcing model that strategizes labor and supply costs.
The technology consultants at IT firm Techary help clients create end-to-end technology programs for their businesses. The company, which serves both mid-market and enterprise client organizations, functions as a managed service provider, a value-added reseller and a consultancy in business and information technology. Techary’s highest-touch service, Orbit, includes both managed service and ongoing consulting on IT.
As a strategic growth consulting firm, Stryber focuses on helping clients scale their businesses. It works with established companies that are in growth phases and develops strategic plans for increasing revenue, market share and brand presence. Stryber also offers new business building services for startups as an separate service.
MARGO is an IT consulting firm with expertise in artificial intelligence, data and digital business. As a boutique firm, it specializes in highly complex IT ecosystems that incorporate software engineering, data architecture, cloud transformations and capital market technologies. One of the company’s missions is to leverage IT innovations to create competitive edges in financial markets.
Infosys Consulting is an information technology company and the consultancy branch of Infosys Technology. It works with clients to advise them on digital business processes and software. Infosys Consulting serves B2B clients in a range of industries, including the healthcare, life sciences, automotive and agriculture sectors. The company recently earned a spot on the Forbes’ World’s Best Management Consulting Firms list.
Celonis is a data processing firm that focuses on process mining. This approach analyzes event logs and operational process data to generate insights. Companies work with Celonis to obtain actionable directions from their data resources. The multinational company’s London office opened in 2019 and serves as home base to a team of over 200 data specialists and consultants.
Endava is a software development company that offers numerous managed service paradigms under the umbrella of technology consulting. Endava’s digital product acceleration and digital strategy offerings pair an Endava team with a client company to seek out areas where new software tools or innovations to existing technology can be implemented within the client company’s business processes.
Mirakl is an e-commerce consulting business that offers software products and strategic guidance. It works with B2B clients to create software strategies that work with the client’s specific process and industry needs, while optimizing for efficiency and quality. Mirakl consults on e-commerce niches such as marketplace and dropship models, ad buying, cataloging and distribution.
Consulting firm West Monroe offers its expertise in business and technology. Founded in 2002, the company’s team of over 1500 consultants and technologists provide holistic strategy work with the aim of improving efficiency and leveraging emerging technology to create a competitive advantage. West Monroe operates divisions for cybersecurity, digital transformation, talent management and other categories that directly impact business growth and revenue.
Mimecast is an information security company that specializes in email security and human risk management. This niche of cybersecurity seeks to address the low hanging fruit of human behavior by protecting companies and employees from business email compromise, or BEC, cyberattacks. Mimecast uses artificial intelligence to augment its threat protection programs.
Sigmoid is a specialty consulting company that offers AI and data engineering support. It works with client companies to locate processes and areas within their business that can be optimized by bringing in artificial intelligence and data engineering programs. From there, Sigmoid aims to match the appropriate technology with the client’s specific need. It then works to implement and maintain the solution.
3H Partners is a broad-spectrum boutique consulting firm that offers services through two distinct brands, 3Horizons and 3H Partners. The former is a strategy platform on which clients can build strategic solutions to existing and potential problems within their space, while the latter is the company’s consulting arm.
Heathtech consultancy ZS provides strategic management in technology. It works with healthcare, healthtech, medtech and biotech clients to boost their use of business processes and software tools. ZS consultants are expert in medical science as well as in business and tech, which means the company brings deep knowledge of purpose-built industry tools and their applications.
Zone & Co is a software consulting company that works with finance teams within the NetSuite software ecosystem. Its services include financial management and enterprise resource planning for large organizations, particularly during growth stages. Zone & Co offers standalone SaaS products as well as bespoke services across implementation, support and growth, each of which is designed to augment Zone & Co’s SaaS tools.
NAVEX is a risk and compliance consulting firm. It works with B2B clients to understand their exposure to regulatory and business challenges that affect business health and profitability. NAVEX offers software tools, managed services and consultations in corporate governance, compliance and risk, and additionally offers structured support for whistleblowing and incident management.
Malt is a consulting company for freelancers, serving several European countries as well as the United Arab Emirates and the United Kingdom. It matches businesses that need professionals to contribute services like app development, content creation and management with freelancers who provide those services. Malt consults with businesses to identify what freelance support will best serve them, and places freelance consultants to work directly with client businesses.
