Doncasters IPO filing tests defense demand after 26% jump

Doncasters filed on Monday for a U.S. initial public offering after first-quarter revenue rose 26 per cent to $237 million, giving investors a live test of whether defense-linked manufacturers can use the receptive 2026 listings market, according to its S-1 filing and Reuters. DPC Holdings said it plans to list on the New York Stock Exchange under the ticker DPC.

Unlike many companies testing the 2026 IPO market, Doncasters makes precision components for aerospace, defense and industrial customers. Roadshow marketing is therefore likely to lean on backlog, contract visibility and defense exposure rather than clean earnings. The filing is a measure of whether the IPO window is widening beyond marquee names to more capital-intensive suppliers.

In the filing, DPC said 2025 revenue was $837 million and adjusted EBITDA was $138 million, or a 16.5 per cent margin, while backlog stood at $930 million as of March 29. About 70 per cent of revenue came through long-term agreements, the company said. That contracted base sits at the centre of the pitch. For IPO buyers, it may matter as much as a single quarter’s profit line when defense and engine demand are still firm.

Yet the balance-sheet questions are harder to ignore. Doncasters posted a $47 million net loss in the quarter and carried total debt of $712 million, according to the S-1. So the deal arrives as both a growth story and a financing test: investors can see rising sales, but they still need evidence that the company can turn that pace into steadier cash generation.

Why defense exposure matters

Aerospace and defense issuance already has an open market. Applied Aerospace & Defense’s own IPO plans this week sought as much as $682.5 million, while SpaceX’s filing kept investors focused on the supply chain and the new-issue calendar. Even so, Doncasters is much smaller than either company, and the comparison still matters. It is offering exposure to the same spending backdrop without the valuation narrative that usually follows pure-play tech.

Matt Kennedy, senior strategist at Renaissance Capital, told Reuters that defense stocks are viewed as “AI-resistant,” a label that remains “very top-of-mind” for investors.

Still, that helps explain why Doncasters’ filing reads as more than a one-company capital raise. In a market still crowded with AI and space narratives, defense manufacturing offers a different hedge: demand tied to military budgets, maintenance cycles and multi-year procurement, not software multiples alone. The question is whether that framing is enough to outweigh the weaker parts of the filing, especially the quarterly loss and debt load.

Buyers are effectively being asked to put a value on visibility. Doncasters said its backlog was larger than a full year’s revenue and pointed to long-term agreements that support most sales. That helps the pitch, though it does not remove execution risk. Semafor argued that 2026 could become the biggest year ever for IPOs, but that calendar stays open only if buyers keep backing growth that looks durable enough to absorb execution risk.

For Doncasters, the test is narrower than the broader IPO boom implies. The company does not have to prove it is a once-in-a-cycle growth story. It has to show that a defense-linked supplier with rising sales, a $930 million backlog and meaningful debt can still attract fresh equity in a risk-on market. If it can, the filing will say as much about demand for industrial defense names as it does about Doncasters itself.