Timothy Landhuis
VP Research
Timothy Landhuis is the VP of Research at Staffing Industry Analysts. He oversees a range of research studies, research products and presentations on behalf of SIA’s North America-based research team. Since joining SIA in 2011, Timothy has authored reports such as the US Staffing Industry Forecast, Largest Staffing Firms in the United States, the SIBC Benchmarking Study, and the Workforce Solutions Buyers Survey, as well as reports on industrial staffing, education staffing, and the Canadian staffing industry. Timothy has guided the development of data tools on compensation rates, mergers and acquisitions, and staffing industry size and growth rates by occupation and geographic regions. He is a frequent presenter and moderator at industry conferences and events.
Prior to joining SIA, Timothy worked as a financial analyst and recruiter at leading firms in the semiconductor, software, and financial services sectors.
Timothy holds a BA from Stanford University and an MBA from Washington University in St. Louis.
Recent Articles
Largest Retained Search Firms in the US: 2021 Update
December 13, 2021
- Report ranks 18 firms that generated at least $25 million in retained search revenue last year
- The largest companies are Spencer Stuart, Korn Ferry, and Heidrick & Struggles
- The 18 firms generated a combined $2.3 billion in retained search revenue
Largest Education Staffing Firms in the US: 2021 Update
December 9, 2021
- Report ranks 3 firms that generated $25 million or more in U.S. education temporary staffing revenue last year
- The 3 largest companies are Kelly Services, ESS (Education Solutions Services), and Substitute Teacher Service
- Added together, the 3 firms generated $588 million in such revenue
Largest Life Sciences Staffing Firms in the US: 2021 Update
December 9, 2021
- Report ranks 22 firms that generated $25 million or more in U.S. life sciences staffing revenue last year
- The three largest companies are Actalent (Allegis Group), Kelly Services, and ASGN
- Added together, the 22 firms generated $2.3 billion in such revenue
Largest Finance Accounting Staffing Firms in the US: 2021 Update
December 9, 2021
- Report ranks 15 firms that generated $50 million or more in U.S. finance/accounting temporary staffing revenue last year
- The three largest companies are Robert Half International, Accounting Principals (The Adecco Group), and Kforce
- Added together, the 15 firms generated $3.9 billion in such... More
Largest Engineering Staffing Firms in the US: 2021 Update
December 9, 2021
- Report ranks 25 firms that generated $50 million or more in U.S. engineering temporary staffing revenue last year
- The three largest companies are Actalent (Allegis Group), Kelly Services, and System One
- Added together, the 25 firms generated $4.8 billion in such revenue
Largest Marketing Creative Staffing Firms in the US: 2021 Update
December 9, 2021
- Report ranks 9 firms that generated $25 million or more in U.S. marketing/creative temporary staffing revenue last year
- The three largest companies are Aquent, Creative Circle (ASGN), and 24 Seven
- Added together, the 9 firms generated $1.2 billion in such revenue
Largest Healthcare Staffing Firms in the United States: 2021 Update
December 8, 2021
- Report ranks 59 firms that generated $50 million or more in US healthcare temporary staffing revenue last year
- Added together, the firms generated $17.7 billion in such revenue
- The market share of these 59 firms represents 81% of the estimated $21.7 billion healthcare temporary staffing market... More
Largest Office Clerical Staffing Firms in the US: 2021 Update
December 3, 2021
- Report ranks 20 firms that generated $50 million or more in U.S. office/clerical temporary staffing revenue last year
- The three largest companies are Aston Carter (Allegis Group), Randstad and Adecco (The Adecco Group)
- Added together, the 20 firms generated $6.3 billion in such revenue
Largest IT Staffing Firms in the US: 2021 Update
December 3, 2021
- Report ranks 57 IT staffing firms that generated $100 million or more in US IT temporary staffing revenue last year.
- The three largest companies are TEKsystems (Allegis Group), ASGN, and Insight Global.
- Added together, these 57 firms generated $24.0 billion in such revenue.
Largest Industrial Staffing Firms in the US: 2021 Update
November 30, 2021
- Report ranks 54 firms that generated at least $100 million in US industrial temporary staffing revenue last year
- The three largest companies are EmployBridge Holding Company, Express Employment Professionals, and Aerotek (Allegis Group)
- Added together, the 54 firms generated $25.9 billion in... More