Consulting Advice
Professional Services 101
,
Benchmarks

What Is a Professional Services Firm? (Definition & 35+ Examples)

By
Nicola Stewart
What Is a Professional Services Firm? (Definition & 35+ Examples)

What is a professional services firm? Discover how these expertise-driven businesses work, what types exist, and key stats about this $6 trillion industry.

In short, a professional services firm sells specialized expertise and knowledge to clients. Staff at these firms typically hold high-level qualifications and bring unique experience to their work. They log billable hours that the firm charges back to clients. Clients enlist these businesses to help solve problems, make informed decisions, or improve their operations.

Read more: The 4 types of professional services.

How Professional Services Firms Work

Although professional services firms span many industries and disciplines, they all follow a similar model: Provide expert skills to clients in order to bolster the client’s success. and that success depends on the knowledge and reputation of their people. At their core, professional services firms are about relationships — with clients and with employees alike.

What Types of Firms Qualify As Professional Services?

  • Supply Chain Management
  • Information Security Consulting
  • Crisis Management Consulting
  • Occupational Health and Safety Consulting
  • Risk Management Services
  • Intellectual Property Consulting
  • Customs and Trade Consulting
  • Organizational Development
  • Data Analytics Services
  • Immigration Consulting
  • Software Development Services
  • Mergers and Acquisitions Advisory
  • Mobile App Development
  • Content Creation and Copywriting Services
  • IT Project Management
  • Quality Assurance Consulting
  • Sustainability Consulting
  • Management Consulting
  • IT Consulting
  • Engineering Services
  • Architectural Services
  • Marketing and Advertising
  • HR Consulting
  • Healthcare Consulting
  • Public Relations (PR)
  • Environmental Consulting
  • Training and Development
  • Creative Services
  • Business Process Outsourcing (BPO)
  • Executive Coaching
  • Cybersecurity Consulting
  • Health and Safety Training
  • Workplace Diversity and Inclusion Consulting
  • Business Analytics Consulting
  • Government Policy Consulting

How Big Is the Professional Services Industry?

The industry is large and growing fast. The global professional services market was valued at $6.02 trillion in 2022 and is projected to exceed $10.17 trillion by 2031 — a projected growth rate of 6.4% through 2032. In the United States alone, revenue is expected to reach $31.95 billion in 2024.

A few other numbers that illustrate the industry's momentum:

How Do Professional Services Firms Manage Their Operations?

Because these firms run on people, projects, and billable time, many rely on Professional Services Automation (PSA) software. PSA software are specialized tools that handle service delivery, resource planning, finances, project management, and business performance tracking in one place.

Learn more: What is professional services automation (PSA) software?

Start your tree trial with PSA Software platform Projectworks

Join our professional services community

Subscribe for the latest updates delivered straight to your inbox.

By subscribing you agree with our Privacy Policy.
Enjoying this article?
Share it with the world!

Related Articles

Your Best Proposal Content? It's Hiding
Proposals
Winning Work

Your Best Proposal Content? It's Hiding

Most professional services firms have more good content than they realise. The problem isn't that it doesn't exist, it’s that it lives in different, unconnected places and no one has full visibility over it. When a new RFP lands, you feel the pain immediately. Someone opens the last similar proposal and starts copying from it. Someone else messages a colleague for the right case study. By the time the first draft is circulating, the team has spent their most focused hours on logistics that should have been solved before the bid started.

Guide To Understanding Valuation Multiples
Consulting Advice
Professional Services 101
,
Growth

Guide To Understanding Valuation Multiples

Learn how EBITDA multiples work for consulting firms, what the realistic benchmarks are, and the six factors that move your multiple up or down.

What's My Firm Worth: How To Value Your Business
Consulting Advice
Z Suite
,
Growth

What's My Firm Worth: How To Value Your Business

What is your consulting firm actually worth? Allen Debes and Mark Orttung have bought and sold more than 10 consulting firms between them. In this episode, they break down how buyers arrive at a number, what moves your multiple, and why exit preparation starts earlier than most founders think.