Every fact below carries a source link and an as-of date. Informational only. Ownership statements are limited to primary announcements and filings.
- Headquarters
- Chicago, Ill., as listed by ENR in the 2026 Top 500 Design FirmsSource: enr.com/toplists/2026-top-500-design-fi… · As of 2026-10-05
- Founded
- 1906Source: exp.com/about-us · As of 2026-10-11
- Employees
- More than 4,700 employees, per the firm's siteSource: exp.com · As of 2026-10-11
- Ownership type
- Ownership not published
Legal name, DBA and former names
- EXP (name as shown on the firm's website)Source: exp.com · As of 2026-10-11
Offices
- EXP operates more than 100 offices and labs in North America.Source: exp.com/about-us · As of 2026-10-11
Employee count or band
- More than 4,700 employees, per the firm's site.Source: exp.com · As of 2026-10-11
Services and markets
- EXP provides engineering, architecture, design and consulting services across transportation, energy, water, industrial, healthcare, education, commercial, residential and other markets.Source: exp.com/about-us · As of 2026-10-11
Rankings and awards
- Listed in the ENR 2026 Top 500 Design Firms.Source: enr.com/toplists/2026-top-500-design-fi… · As of 2026-10-05
News timeline
- 2026-10-06: EXP reported on an internal network for sustainability.Source: exp.com/news-insights/news · As of 2026-10-11
- 2026-10-05: A partnership advanced the CTA Red Line Extension Project.Source: exp.com/news-insights/news · As of 2026-10-11
- 2026-10-05: EXP reported on the modernization of Montreal’s Jeanne-Mance Park while preserving its heritage.Source: exp.com/news-insights/news · As of 2026-10-11
Sources of record
Ownership tag: Ownership not published. Profiles are informational, compiled from public sources linked above. Firms may request corrections. A listing is not an endorsement.
