OSL manages the full lifecycle of outdoor lighting for commercial properties, from the initial site survey through photometric design, electrical engineering, procurement, installation, and ongoing optimization and warranty management. The company has operated in this discipline since 2001, completing more than 7,200 projects across the continental United States. OSL is not a product vendor or a distributor. The work is professional services and technical execution, focused entirely on outdoor lighting infrastructure for commercial sites.

Two groups make up the majority of OSL's client base. The first is design and construction professionals, including engineers, architects, and general contractors, who need photometric lighting design and electrical engineering handled as a subcontracted service and integrated into a larger project team. The second is commercial property owners and operators, including REITs, portfolio managers, and regional developers, who need a single partner accountable for outdoor lighting across multiple locations over long time horizons. Many of OSL's client relationships have run for ten to fifteen years.

OSL is manufacturing-agnostic, always choosing what is best for the site, building optimal outcomes for procurement, installation, rebate, warranty, and long term optimization into every design. The company maintains direct relationships with the leading outdoor lighting manufacturers but is not tied to any single product line. Every specification is built around what the site requires, not what a vendor carries or only considering where the margin is (though this is an important factor and we can provide multiple scenarios that demonstrate the immediate savings versus the long term ROI). This independence is what produces the design quality and the honest recommendations that OSL's long-term clients rely on. A vendor's proposal starts with the product. OSL's process starts with the site.

OSL's primary market is large-scale commercial outdoor lighting: parking fields, retail campuses, corporate campuses, multi-family properties, industrial facilities, medical campuses, schools and universities, and mixed-use sites. A significant portion of OSL's work is for clients managing multiple locations, where consistency of specification and performance across a portfolio matters as much as the outcome at any single site. OSL does not handle residential work.

The lifecycle model means OSL is accountable for more than one phase of the project. The survey informs the design. The design governs the installation. The installation creates the baseline for ongoing optimization. When one team owns the full arc, every phase is connected to the ones before and after it. This eliminates the gaps, translation errors, and accountability voids that tend to surface when design, installation, and maintenance are handled by separate vendors with no shared record.

The starting point is a direct conversation. There is no lengthy intake process. Marshall Tromborg, OSL's CEO, is reachable at 763-682-7114 or [email protected]. For new construction, sending over a site plan is usually enough for OSL to give you a realistic picture of scope and process. For existing properties, a description of the current conditions and what you're trying to accomplish is a reasonable starting point. The first conversation is about understanding what you're working with, not about selling a scope of work.

For most clients, the first formal engagement is a site survey or a photometric design review. OSL evaluates the site, models the lighting requirements zone by zone, and produces a specification-grade design package that includes photometric drawings, fixture specifications, and the documentation needed for permitting and internal capital approvals. From there, clients decide how much of the lifecycle they want OSL to own. Some engage OSL for design only. Many choose to continue through procurement, installation, and optimization.

Yes. OSL has completed projects across the continental United States with a network of more than 400 electrical contractors in all lower 48 states. Licensed electrical engineers on the team carry sign-and-seal capability across all 50 states, which means OSL can meet permitting and engineering documentation requirements in any jurisdiction. The company is headquartered in Buffalo, Minnesota, and has operated at national scale for more than two decades.