The consulting market
Consulting includes global strategy firms, multidisciplinary professional-services firms, technology and implementation providers, economic and litigation specialists, restructuring advisers, human-capital firms, design and innovation firms, sector boutiques, independents, and internal corporate consulting teams.
Client buyers
Clients can include corporate executives, business-unit leaders, boards, private-equity sponsors, governments, nonprofits, and institutions. The buyer’s incentives and authority affect project scope. A CEO-sponsored transformation differs from a functional benchmarking project purchased by one department.
Firm types
Strategy firms often focus on senior management decisions, though many now perform digital, analytics, operations, and implementation work.
Big Four and multidisciplinary firms combine consulting with audit-adjacent, tax, deals, risk, technology, and managed services under conflict and independence rules.
Technology and implementation consultancies design and deploy systems, processes, and operating models, often over longer engagements.
Specialist firms focus on economics, litigation, restructuring, procurement, healthcare, public sector, data, or another domain.
Boutiques and independents can provide deep expertise and direct senior attention with less global infrastructure.
Project economics
Firms earn fees through time and materials, fixed-price projects, retainers, subscriptions, outcome-linked arrangements, or combinations. Utilization, leverage of junior to senior staff, pricing, sales, scope changes, and write-offs affect the business.
Staffing models
Staffing can be office-based, global, practice-based, or market-based. Generalists may rotate across industries. Specialists may remain within a function or sector. Travel and remote expectations vary by project and have changed materially over time.
Career models
Some firms use structured promotion and up-or-out expectations. Others support long-term expert, implementation, technical, or delivery tracks. Titles aren't directly comparable among firms.
Modern work mix
Consulting now frequently combines strategy with data science, software engineering, design, cloud, AI, cybersecurity, process automation, and change management. Candidates should examine the actual role rather than assume all client-facing work is a classic strategy case.
Conflicts and independence
Professional-services firms may face restrictions on serving audit clients or performing certain work. Transaction and expert firms may manage conflicts among clients. These considerations can shape staffing and business development.