Orion Group Holdings Inc. Common

ITEM 1A.RISK FACTORS

TExcept as noted below, there have been no material changes to the risk factors previously disclosed in Part I, Item 1A, Risk Factors, of our 2023 Form 10-K.

A significant portion of our revenues may be concentrated among a small number of projects.

From time to time in any given period, a significant percentage of our revenues may be attributable to a limited number of contracts, customers or projects. A reduction in scale, a delay in scheduled work, the termination of a material contract, or the loss of a major customer could negatively impact our reputation and could have an adverse effect on our business, our revenue and results of operations. Furthermore, even if the ultimate amount of our contract revenue attributable to a particular project remains the same, delays in scheduled work may impact the timing of the recognition of our contract revenues and profits. In addition, in many cases, we work

as a subcontractor or among a team of contractors. Our ability to timely execute on our work is often affected by scheduling changes or contract performance by our co-contractors, all of which are outside of our control.

For example, our Pearl Harbor Project for the United States Navy, our portion of which totals $447.6 million, and our design-build contract for the Grand Bahama Shipyard totaling over $100.0 million may concentrate our revenues. To the extent we experience any delays in the Pearl Harbor Project, the Grand Bahama Shipyard or any other significant project, anticipated revenue or profits associated with that project may shift into future periods, which may impact the accuracy of our guidance.

The timing and funding of new contracts may result in volatility in our cash flow and profitability. These factors as well as others that may cause our actual financial results to vary from any publicly disclosed earnings guidance and forecasts are outside of our control.

Our revenues are generated from project-based work. It is generally very difficult to predict the timing and source of awarded contracts, and the timing of revenue under awarded contracts. The selection of, timing of, or failure to obtain projects, delays in awards of projects, the rebidding or termination of projects due to budget overruns, or the cancellations of projects or delays in completion of contracts could result in the under-utilization of our assets and reduce our cash flows and profitability, or cause revenues to be shifted further into the future. Even if we are awarded contracts, we face additional risks that could affect whether, or when, work will begin. For example, some of our contracts are subject to financing and other contingencies that may delay or result in termination of projects. This may make it difficult to match workforce size and equipment location with contract needs. In some cases, we may be required to bear the cost of a readily available workforce and fleet of equipment that is larger than needed at the time, resulting in unpredictability in our cash flow, expenses and profitability. If an expected contract award or the related notice to proceed is delayed or not received, we could incur substantial costs without receipt of any corresponding revenues, or the revenues could appear in periods later than expected. Delays by our customers in obtaining required approvals and permits for their infrastructure projects may delay their awarding contracts for those projects and once awarded, the ability to commence construction under those contracts. Moreover, construction projects for which our services are contracted may require significant expenditures by us prior to receipt of relevant payments by a customer and may expose us to potential credit risk if such customer should encounter financial difficulties. Such expenditures could reduce our cash flows and necessitate increased borrowings under our Credit Agreement. In addition, a change in the timing of a construction project may impact future revenue. If a project is delayed, revenue that we expect to receive may appear in periods later than we initially expected, which may impact the accuracy of our guidance. Finally, the winding down or completion of work on significant projects that were active in previous periods will reduce our revenue and earnings if such significant projects have not been replaced in the current period. From time to time, we may publicly provide earnings or other forms of guidance, which reflect our predictions about future revenue, operating costs and capital structure, among other factors. Any such predictions may be impacted by these factors as well as others that are beyond our control and might not turn out to be accurate.

We may not be able to enter into contracts associated with our pipeline of opportunities, or realize any revenue associated with our pipeline of opportunities.

As of September 30, 2024, we had a pipeline of opportunities of $13.0 billion. We define our pipeline of opportunities as specific projects that we have identified and are tracking as projects of interest.

Our pipeline of opportunities does not represent binding contracts with third parties. Before we can capitalize on our pipeline of opportunities, we would have to enter into contracts with third parties, or otherwise be

selected to perform services, for the particular project identified in our pipeline of opportunities. We cannot provide any assurance that we will ultimately enter into a contract with a third party or provide services with respect to any particular opportunity. We may be unable to enter into contracts or perform services associated with an opportunity for a variety of reasons, including being outbid, not having the ability to satisfy customer or contract requirements, resource constraints, or bonding requirements. Even if we enter into a contract associated with an opportunity, it may be for a contract amount that is lower than the amount we estimated and included in our pipeline.

Furthermore, even if we are ultimately awarded contracts in our pipeline of opportunities, we cannot guarantee that the revenue associated with those projects will be realized, or if realized, will result in positive earnings. Further, such contracts would become subject to the typical risks associated with our projects, such as execution risk, counter-party risk, delays, cancellations, cost-overruns, weather conditions, natural disasters, health epidemics, and cybersecurity incidents, among others.