As of 2025, these professional services firms are leading global revenue generation. Combined, the top 10 firms brought in $315.04 billion USD in 2024, up from $310.97 billion USD in 2023. With an inflation rate of 2.7% for 2024, this 1.31% year-on-year growth has not been able to surpass inflation. In addition to this, half of the companies on this list made less revenue in 2024 than 2023.

This limited growth can be attributed to global economic pressures, which have led companies to tighten spending on consulting services. Additionally, many organizations are opting for smaller, boutique firms that offer targeted expertise.

For 2025, U.S. inflation is expected to stay around 2.0%, so firms will likely need to adjust their prices to keep up. At the same time, with unemployment predicted to rise to 4.4%, companies may cut back on hiring and lean on consultants to help manage their workloads.

This could make 2025 a promising year for professional services, as businesses look for outside expertise.

1. Accenture

Industry: IT

Yearly revenue: $66.36B ↑ (All $ in USD)

Previous year: $64.58B

Location: 🇮🇪 Ireland

Operating margin: 15.23%

2. Schneider Electric

Industry: Digital Automation & Energy Management

Yearly revenue: $39.68B ↑

Previous year: $36.60B

Location: 🇫🇷 France

Operating margin: 15.05%

3. NTT Data

Industry: IT

Yearly revenue: $29.77B ↓

Previous year: $30.16B

Location: 🇯🇵 Japan

Operating margin: 7.70%

4. Tata Consultancy Services

Industry: IT

Yearly revenue: $29.47B ↑

Previous year: $28.90B

Location: 🇮🇳 India

Operating margin: 25.96%

Learn more: Mastering year-round profitability at your consultancy firm

5. Randstad

Industry: HR

Yearly revenue: $26.48B ↓

Previous year: $28.25B

Location: 🇳🇱 Netherlands

Operating margin: 2.44%

6. Fujitsu

Industry: IT

Yearly revenue: 25.58B ↓

Previous year: $26.31B

Location: 🇯🇵 Japan

Operating margin: 5.00%

7. Adecco Group

Industry: Finance

Yearly revenue: 25.56B ↓

Previous year: $25.89B

Location: 🇨🇭 Switzerland

Operating margin: Unknown (previously 3.1%)

Learn more: How to calculate your margin

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8. Capgemini

Industry: IT

Yearly revenue: $24.89B ↑

Previous year: $23.55B

Location: 🇫🇷 France

Operating margin: 10.23%

9. Marsh & McLennan Companies

Industry: Insurance Brokering & Risk Management

Yearly revenue: $23.94B ↑

Previous year: $22.2B

Location: 🇺🇸 USA

Operating margin: 23.04%

10. Recruit

Industry: HR

Yearly revenue: $23.31B ↓

Previous year: $24.53B

Location: 🇯🇵 Japan

Operating margin: 12.47%

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