MSA Professional Services, Inc. Firm Profile

Every fact below links to its source. Informational only. Ownership statements are limited to primary announcements and filings.

Headquarters: Baraboo, WisconsinSource: msa-ps.com
Ownership type: Employee-owned (ESOP): firm pages describe employee owners; DOL Form 5500 lists MSA Professional Services, Inc. Employee Stock Ownership Plan; firm CEO announcement discusses the ESOP trustee roleSource: msa-ps.com/who-we-are/news/msa-welcomes-ni…
Sponsor or parent: Firm CEO announcement: employee-owned S-Corporation trust with ESOP trustee; DOL ESOP filing under MSA Professional Services, Inc.Source: msa-ps.com/who-we-are/news/msa-welcomes-ni…
Employees: Over 550 employees across 19 offices, per the firm history pageSource: msa-ps.com/employee-owners-partners-neighb…
Website: msa-ps.comSource: msa-ps.com

Legal name, DBA and former names

MSA Professional Services, Inc.Source: msa-ps.com/employee-owners-partners-neighb…

Identifiers (UEI, state registrations)

SAM UEI ULMGDGEXRCE8 (as shown on the USAspending recipient record) and Texas TBPELS firm no. 18472.Source: usaspending.gov/recipient/12f3243a-a655-3823-23…

Offices

19 offices, per the firm history page.Source: msa-ps.com/employee-owners-partners-neighb…

Ownership type

Employee-owned (ESOP): firm pages describe employee owners; DOL Form 5500 lists MSA Professional Services, Inc. Employee Stock Ownership Plan; firm CEO announcement discusses the ESOP trustee role.Source: msa-ps.com/who-we-are/news/msa-welcomes-ni…

Sponsor, parent or transaction

Firm CEO announcement: employee-owned S-Corporation trust with ESOP trustee; DOL ESOP filing under MSA Professional Services, Inc.Source: msa-ps.com/who-we-are/news/msa-welcomes-ni…

Employee count or band

Over 550 employees across 19 offices, per the firm history page.Source: msa-ps.com/employee-owners-partners-neighb…

Services and markets

Full-service multidisciplinary consulting including buildings, planning, agricultural services and related infrastructure.Source: msa-ps.com/employee-owners-partners-neighb…

Leaders

Nick Wagner, CEO.Source: msa-ps.com/who-we-are/news/msa-welcomes-ni…

Licences (board records)

Texas TBPELS roster lists MSA Professional Services, Inc. DBA OURSTON (firm no. 18472, type NS, expires 2027-01-31)Source: tbpedownloads.s3-us-west-2.amazonaws.com/roster_firm.zip

Federal awards (contracts)

USAspending recipient record MSA PROFESSIONAL SERVICES, INC. (Baraboo, WI), contract award obligations: FY2021 $0, FY2022 $0, FY2023 $0, FY2024 $0, FY2025 $0 (award types A to D; obligations as published, including modifications and negative adjustments)Source: usaspending.gov/recipient/12f3243a-a655-3823-23…

ESOP plan data (Form 5500)

DOL Form 5500 plan year beginning 2024-01-01: MSA PROFESSIONAL SERVICES, INC. EMPLOYEE STOCK OWNERSHIP PLAN (ACK_ID 20250731124411NAL0003067395001), 467 active participants and total plan assets of $63,405,454 at year end.Source: dol.gov/agencies/ebsa/about-ebsa/our-ac…

Public filings

DOL Form 5500 filings, plan year beginning 2024-01-01, NAICS 541330: MSA PROFESSIONAL SERVICES, INC. EMPLOYEE STOCK OWNERSHIP PLAN (ACK_ID 20250731124411NAL0003067395001, 467 active participants); MSA PROFESSIONAL SERVICES, INC. SAVINGS PLAN (ACK_ID 20250717092953NAL0000052673001, 459 active participants)Source: dol.gov/agencies/ebsa/about-ebsa/our-ac…

Rankings and awards

Listed in the ENR 2026 Top 500 Design Firms.Source: enr.com/toplists/2026-top-500-design-fi…

Sources of record

Ownership tag: Employee-owned (ESOP). Profiles are informational, compiled from public sources linked above. Firms may request corrections. A listing is not an endorsement.