Every fact below carries a source link and an as-of date. Informational only. Ownership statements are limited to primary announcements and filings.
- Founded
- Founded on June 13, 1949 by John Bolton and Martin Menk, per the firm's About pageSource: bolton-menk.com/about-us · As of 2026-10-05
- Ownership type
- Partly employee-owned (ESOP): one-third of the firm is owned by all employees through an ESOP and two-thirds by practicing professionals, per the firm's employee benefits page; the firm states it is not guided by an investment groupSource: bolton-menk.com/benefits · As of 2026-10-05
- Sponsor or parent
- The firm's home page describes an employee-owned team of planners, engineers, designers and techniciansSource: bolton-menk.com · As of 2026-10-05
- Website
- bolton-menk.comSource: bolton-menk.com · As of 2026-10-05
Legal name, DBA and former names
- Bolton & Menk, Inc. (name on the Form 5500 ESOP plan record)Source: dol.gov/agencies/ebsa/about-ebsa/our-ac… · As of 2025-07-13
Identifiers (UEI, state registrations)
- SAM UEI K6FDNK9LKPP7 (as shown on the USAspending recipient record) and Texas TBPELS firm no. 15186.Source: usaspending.gov/recipient/e366aac4-8c15-d856-09… · As of 2026-10-05
Offices
- Offices listed on the contact page include Minnesota locations such as Baxter, Burnsville, Chaska, Duluth, Eden Prairie, Mankato, Minneapolis, Rochester and St. Cloud (full list and other states not counted here)Source: bolton-menk.com/contact · As of 2026-10-05
Ownership type
- Partly employee-owned (ESOP): one-third of the firm is owned by all employees through an ESOP and two-thirds by practicing professionals, per the firm's employee benefits page; the firm states it is not guided by an investment group.Source: bolton-menk.com/benefits · As of 2026-10-05
Sponsor, parent or transaction
- The firm's home page describes an employee-owned team of planners, engineers, designers and technicians.Source: bolton-menk.com · As of 2026-10-05
Services and markets
- Planners, engineers, designers, technicians and more serving communities, with infrastructure, design and planning solutions, per the firm's home page.Source: bolton-menk.com · As of 2026-10-05
Leaders
- Bradley DeWolf, PE, President and Chief Executive Officer, member of the Board of Directors.Source: bolton-menk.com/real-people/more-people/bradley… · As of 2026-10-05
Licences (board records)
- Texas TBPELS roster lists Bolton & Menk, Inc. (firm no. 15186, type NS, expires 2028-07-31)Source: tbpedownloads.s3-us-west-2.amazonaws.com/roster_firm.zip · As of 2026-10-04
Federal awards (contracts)
- USAspending recipient record BOLTON & MENK INC (Mankato, MN), contract award obligations: FY2021 $0, FY2022 $0, FY2023 $94,090, FY2024 $160,133, FY2025 $6,100 (award types A to D; obligations as published, including modifications and negative adjustments)Source: usaspending.gov/recipient/e366aac4-8c15-d856-09… · As of 2026-10-05
ESOP plan data (Form 5500)
- DOL Form 5500 plan year beginning 2024-01-01: BOLTON & MENK, INC. EMPLOYEE STOCK OWNERSHIP PLAN (ACK_ID 20250713192903NAL0001219730001), 1,046 active participants and total plan assets of $77,660,489 at year end.Source: dol.gov/agencies/ebsa/about-ebsa/our-ac… · As of 2025-07-13
Public filings
- DOL Form 5500 filings, plan year beginning 2024-01-01, NAICS 541330: BOLTON & MENK, INC. EMPLOYEE STOCK OWNERSHIP PLAN (ACK_ID 20250713192903NAL0001219730001, 1,046 active participants)Source: dol.gov/agencies/ebsa/about-ebsa/our-ac… · As of 2025-07-13
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
Sources of record
- https://www.dol.gov/agencies/ebsa/about-ebsa/our-activities/public-disclosure/foia/form-5500-datasets
- https://www.usaspending.gov/recipient/e366aac4-8c15-d856-0962-73b6ca8666b1-P/latest
- https://www.bolton-menk.com/contact/
- https://www.bolton-menk.com/about-us/
- https://www.bolton-menk.com/
- https://www.bolton-menk.com/benefits/
- https://www.bolton-menk.com/real-people/more-people/bradley-dewolf-pe/
- https://tbpedownloads.s3-us-west-2.amazonaws.com/roster_firm.zip
- https://www.enr.com/toplists/2026-top-500-design-firms-2
Ownership tag: Employee-owned (ESOP). Profiles are informational, compiled from public sources linked above. Firms may request corrections. A listing is not an endorsement.
