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Operating Engineers Local #37
Operating Engineers Local 37 is a Taft-Hartley multiemployer pension plan based in Baltimore, Maryland, serving members of the International Union of Operating...
Operating Engineers Local #37
Operating Engineers Local 37 is a Taft-Hartley multiemployer pension plan based in Baltimore, Maryland, serving members of the International Union of Operating Engineers who operate cranes, bulldozers, graders, and other heavy construction machinery across central Maryland. The fund is administered by leadership drawn directly from the union's business management, including Business Manager and Financial Secretary Robert A. Holsey Jr., President Mark F. McQuay, and Treasurer Daniel Humbertson. Its contributor base consists of signatory contractors — firms like Potts & Callahan and P. Flanigan & Sons that employ union members on public and private infrastructure projects. The plan's governance is overseen jointly by union and management trustees, per standard Taft-Hartley structure. The fund deploys capital primarily through commitments to external investment managers. Unlike many union pension plans that concentrate on core-plus real estate or broad buyout allocations, IUOE Local 37 has put significant programmatic weight on secondaries — acquiring limited-partnership interests in private equity, real estate, and infrastructure funds from sellers seeking liquidity. That posture gives the fund a pricing advantage in dislocated markets and reduces the J-curve drag that direct primaries impose on smaller plans. Asset-class exposure historically spans real estate, infrastructure, private equity, and credit. The plan also holds direct ownership positions in its union hall on North Point Boulevard, its training school in Sparrows Point, and a former hall in the Hamilton neighborhood of Baltimore. The pension's overall size is not publicly reported. The plan has maintained a visible real-asset footprint through direct ownership of the properties that support union operations, including an active training facility that qualifies for plan-related real estate treatment. The fund's investment committee has pursued secondaries trades as a consistent strategy line rather than opportunistic one-offs — a distinction that separates it from typical mid-sized Taft-Hartley plans. Adjacent union-managed assets include a strike and defense fund and a target benefit program. The plan's most distinct structural feature is its secondaries-centered pacing model, which is rare for a single-union, geographically concentrated Taft-Hartley plan. Most such funds default to large-cap buyout funds of funds or direct consultant-recommended primaries. IUOE Local 37 instead uses secondaries to adjust vintage-year exposure and manage rebalancing between real estate and infrastructure commitments, creating a liquidity and pricing edge that a primary-only allocator of equivalent size would struggle to replicate. Its legacy portfolio also includes direct operating real estate that doubles as union infrastructure, embedding a built-in income stream tied to the local construction cycle.
General information
Firm type
Pension Fund
Year founded
1961
AUM
Undisclosed
Location
Region
North America
Country
United States
City
Baltimore
Corporate office
Baltimore, MD, United States
Principals
Robert A. Holsey Jr.
Business Manager and Financial Secretary
Mark F. McQuay
President and Business Manager
Daniel Humbertson
Treasurer and President - Business Representative
Sector focus
Frequently asked questions
How is IUOE Local 37 pension governed differently from a corporate pension plan?
As a multiemployer Taft-Hartley plan, the fund is governed by a joint board of trustees with equal union and management representation. The union's own leadership — historically including the Business Manager and President — serves alongside contractor-appointed trustees. This structure mandates consensus decision-making on investment policy and benefit levels, unlike a corporate single-sponsor plan where the employer unilaterally sets terms. The plan is administered jointly with signatory contractors such as Potts & Callahan and P. Flanigan & Sons.
What is the fund's approach to secondaries investments?
IUOE Local 37 has committed to a secondaries-heavy strategy rather than relying exclusively on primary fund commitments. The plan acquires limited-partnership interests in private equity, real estate, and infrastructure funds from sellers seeking liquidity before the end of the fund's life. This approach reduces early-stage J-curve returns drag, allows the fund to acquire assets at potential discounts, and provides a tool for actively managing vintage-year and asset-class exposure without locking into decade-long primary blind-pool commitments.
What real estate assets does the plan own directly?
The plan holds direct ownership of the union hall and headquarters at 3615 North Point Boulevard in Baltimore, the training school facility at 5021 North Point Boulevard in Sparrows Point, and a former union hall on Harford Road in the Hamilton neighborhood. These properties serve dual roles as operational union infrastructure and plan-owned real estate, generating rental income and preserving capital for the pension.
Which signatory contractors contribute to the plan?
Two documented signatory contractor relationships are Potts & Callahan, Inc. and P. Flanigan & Sons, Inc., both long-established Baltimore-area heavy-construction and demolition firms. Contributions flow into the plan as negotiated hourly wage-and-benefit packages under collective bargaining agreements with the union. The full employer base extends across all contractors who sign project labor agreements with Local 37 for operating engineers on Maryland job sites.
How is the pension plan related to the International Union of Operating Engineers?
Local 37 is a chartered local affiliate of the International Union of Operating Engineers (IUOE), the national labor organization representing operating engineers in construction and stationary engineering. The plan covers members who belong to Local 37, and the local's elected leadership — which typically includes a Business Manager — has historically played a significant role in the plan's administration and investment oversight.
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