About Us

Who We Are

On-Site Lighting & Survey is a full-lifecycle lighting infrastructure partner for commercial properties (outdoor and indoor). We manage every phase of the work from initial site survey through photometric design, best-for-site procurement, installation, and ongoing optimization including rebate and warranty management.

Founded in 2001, OSL has completed over 7,200 projects across the nation We care deeply about our clients. We design for what's best for the site and the portfolio. We are collaborative with architects and engineers whether a ground-up construction project, an upgrade or a retrofit,

Photometric engineering discipline runs through every phase of the lifecycle. This makes the design accurate, the installation accountable, and the long-term performance predictable. The standard OSL holds across every engagement is the same: get it right from the start, and stay accountable for what follows.

Kimco - Covington Esplanade 2

OSL is manufacturing-agnostic, a truly objective best-for-site Partner.

We maintain close relationships with the leading outdoor lighting manufacturers and are not affiliated with or limited to any single product line. Every specification is written to performance parameters, not to a manufacturer's catalog. Fixture selection, pole placement, and light distribution are determined by what the site's engineering and aesthetic requirements actually call for.

That independence produces better light level uniformity, fewer unnecessary fixtures, and documentation that holds up to permitting review, internal capital approvals, and legal scrutiny.

The specification belongs to the project and the client, rather than to any vendor.

Engineering-Grade Photometrics

Every design is modeled zone by zone for footcandle levels and uniformity ratios before a fixture is selected. That process consistently removes 15 to 25 percent of fixtures from a typical initial proposal without reducing light levels.

Licensed Across the USA

Our electrical engineers carry sign-and-seal capability nationwide. Code compliance is built into the design from the start rather than discovered during permit review. We treat lighting as infrastructure asset and consider your ROI.

Manufacturing-Agnostic (Best-for-Site)

We hold direct relationships with the leading outdoor lighting manufacturers and specify from across that field based on what the site requires. The specification belongs to the project, not to a vendor.

A 400+ Contractor Network

Qualified electrical contractors in every market and region, coordinated directly against the specification our engineers produced. The design intent reaches the field intact.

Full Lifecycle Accountability

Survey, design, procurement, installation, and optimization handled by one team working from one record. There is no handoff where knowledge gets lost. Rebates and Warranties made simple.

Documentation That Holds Up

Photometric drawings, code compliance records, and as-built documentation built to survive permitting review, capital approval, and legal scrutiny.

Our Story

Over 25 years of lighting experience.

OSL was founded in 2001 with a straightforward conviction: lighting for commercial properties deserves the same engineering discipline applied to any other significant infrastructure decision. More than 7,200 projects later, that conviction has not changed. Over 25 years of continuous operation across nation, the company has built client relationships that routinely span a decade or more. Those relationships develop because we listen and respond, the work is honest, the documentation is complete, and the standard applied on the first project is the same standard applied for years to come.

Consistency over time is what turns a project engagement into a long-term partnership. In a world where the cheapest bid wins, we demonstrate a commitment to your ROI and can show you how lighting decisions affect the bottom line in the short AND long term.

2001 - Founded with a Lighting Vision

The founding vision for a better way of lighting as portfolio infrastructure takes hold. Clients are delighted with the optimized approach and enjoy higher return on lighting investments.

2005 - Building the National Network

2011 - HID to LED Retrofits Provide Big Returns

2025 - A New Vision to Light the Way

LED-to-LED Retrofits optimize energy savings. Dark Sky standards bring back the stars. OSL continues to expand nationwide, protecting portfolios and building long term ROI.

Our People

The OSL team includes site surveyors, lighting designers, licensed electrical engineers, project managers, client account managers, and client service professionals.

Engineers who build the photometric model understand how the installation will execute it. Project managers who coordinate the field work understand the design intent behind every specification.

That cross-phase accountability is what keeps the work consistent from the first survey to the final warranty call.

Marshal

Marshall Tromborg

CEO and President
Wayne Tokkesdal photo

Wayne Tokkesdal

Advisory Board, Partner
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Charles Foster

Controller
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Jolene Hawes

Office and Admin Manager
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Mike Gleeson

Projects & Client Accounts
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Eric O'Connell

Project Coordinator
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Greg Crews

Project Coordinator
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Julie Fussy

Project Coordinator
Carter

Carter Heaner

Photometric Design
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Trevor Shoenecker

Site Surveys
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Chris McCoy

Sustainability Manager

Industries Served

Retail, Hospitality, Multi-Family, and Commercial Centers

Grocery-anchored centers, strip retail, restaurants, hotels, multi-family, and standalone commercial properties. Parking field uniformity, entry lighting, and after-dark presentation directly affect customer traffic and tenant retention, which is why these properties carry some of the highest return on a properly engineered design.

Corporate, Medical, Education, and Institutional Campuses

Office and corporate campuses, medical facilities, schools, universities, and municipal properties. These sites carry mixed traffic across long operating hours and typically require zone-specific design across parking, pedestrian routes, entries, and perimeter areas, with documentation that holds up to institutional review.

Industrial, Events, and Mixed-Use Sites

Apartment and multi-family communities, distribution and logistics facilities, shipping yards, parking structures, and mixed-use developments. Each carries a distinct lighting problem, from resident safety perception to overnight operational visibility, and each benefits from a specification built for the site rather than pulled from a catalog.

Stay Updated

Follow us on LinkedIn for updates from Marshall and our team on lighting design, commercial property performance, and industry perspective. Subscribe to the OSL newsletter to receive new resources and insights as they are published.

States Served

Our work spans the nation. The contractor network covers all lower 48 states, and our electrical engineers hold licensure with sign-and-seal capability across all 50, which means permitting and engineering documentation requirements can be met in any jurisdiction we work in.

For owners managing properties in multiple markets, that footprint is what makes one consistent lighting standard possible across an entire portfolio.

Alaska and Hawaii are available by request.

Past Projects

Every project is developed through engineering-grade photometric modeling, which means fixture counts, pole placement, and light distribution are determined by site-specific analysis rather than catalog defaults.

One Lighting Standard Across a Grocery-Anchored Retail Portfolio

Past Project: Shipping Dock and Yard Lighting for Overnight Operations

A Grocery-Anchored Parking Field Where Safety and Rebates Were Designed In Together

Exterior and Patio Lighting That Works as Hard as the Sports Bar Inside

The Photometric Redesign That Removed Five Poles and $50,000 From One Project

Even Light Across a Retail Anchor Store Parking Field

Start With a Conversation

Ask us to review your project goals and give you an honest picture of what the site requires, including whether the timing makes sense yet. It's a free call.

Kimco - Covington Esplanade 3

Lighting Services FAQs

How long has OSL been in business, and what has stayed consistent?
What does manufacturing-agnostic actually mean for my project?
Who is on the OSL team, and who will I actually work with?
Does OSL only do outdoor lighting?
What size projects does OSL take on?
Can OSL work as a subcontractor to our design team?
How do I get started with OSL?
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