Sintavia, a Florida-based additive manufacturing service provider specializing in aerospace components, has received $10 million in a subordinated debt investment.The new capital was provided by the Stifel North Atlantic AM-Forward Fund, a Small Business Investment Company (SBIC) that supports US-based aerospace and defense manufacturers.Sintavia, the first company to attract investment from the fund, will use its new cash to refinance existing equipment loans and bolster its general working capital. The financing has also seen Mark Morrissette, Managing Director of Stifel-subsidiary North Atlantic Capital, join Sintavias Board of Directors.Morrissette believes Sintavia is a fantastic fit for the mission of our Fund. He called Brian R. Ne, Sintavias Founder and CEO, a visionary leader for Sintavia, and the additive manufacturing sector more broadly. The venture capital veteran added that the entire Sintavia team has done a terrific job since 2015 in building a vertically integrated, all-digital aerospace component supplier that leverages the positive benefits of additive technology.Sintavia HQ. Photo via Sintavia.Sintavia receives $10 million in new fundingNe noted that Sintavia is honored and humbled to be the launch investment out of the new Stifel North Atlantic AM-Forward Fund. He said, It is great to see Stifels strong commitment to funding profitable, high-growth users of additive technology, and this new fund will certainly have a positive impact across the industry.The Fund, a wholly owned subsidiary of Missouri investment bank and wealth management firm Stifel, launched last October. As part of the US Governments AM Forward program, it seeks to enhance the development and adoption of additive manufacturing within domestic supply chains. Initial investors include Lockheed Martin, GE Aerospace, and ASTM International. Industry stalwarts like Honeywell, Raytheon, Siemens Energy, Boeing, and Northrop Grumman also joined as founding partners.Stifels AM-Forward investment builds on Sintavias April 2024 announcement of a $25 million expansion plan. This cash injection is funding investments in large-format 3D printersincluding a second SLM NXG XII 600 LPBF system, post-processing equipment, and enhanced component testing capabilities. It also facilitated a long-term lease on an additional 25,000 ft2 of manufacturing space next to its existing headquarters.The company claimed that this expansion, completed in Q4 2024, will allow it to support US Department of Defense (DOD) programs until 2030. A key focus of the expansion is the development of high-performance thermodynamic components, like 3D printed heat exchanges. Later in 2024, Sintavia secured a DOD contract to develop 3D printed hypersonic propulsion components as part of the Growing Additive Manufacturing Maturity for Airbreathing Hypersonics (GAMMA-H) challenge. Through this initiative, the US service provider will validate the quality and operational processes needed to design and manufacture parts essential for hypersonic flight.As part of its $25 million expansion, Sintavia purchased a second SLM NXG XII 600 printer. Photo via Sintavia.Investment in additive manufacturingThe state of investment in 3D printing is a hot topic, with venture capital firms and government-led projects bankrolling development in additive manufacturing. IDTechEx data shows approximately $650 million was invested across 40 3D printing-related deals.Earlier this month, it was announced that leading 3D printer developer Stratasys received a $120 million equity investment from Israeli private equity firm Fortissimo Capital. Fortissimo acquired 11,650,485 newly issued ordinary shares at $10.30 each, reflecting a 10.6% premium over the January 31, 2025, closing price. This transaction increased its stake from 1.5% to approximately 15.5%.The infusion of new capital aims to strengthen Stratasys balance sheet and drive strategic growth in the additive manufacturing market. Stratays CEO Yoav Zeif stated that the investment underscores confidence in our leadership and performance. He added that the cash would support organic and inorganic expansion.Elsewhere, Dallas-based aerospace startup Firehawk Aerospace, which names Donald Trump Jr as a Partner, raised $60 million in a series C investment led by 1789 Capital. The Florida-based, roughly $150 million venture capital firm, backs companies that promote right-leaning political policies. The capital injection will support the development of Firehawks solid rocket motors (SRM) and 3D printed rocket fuel.3D Printing Industry is hosting a live webinar to preview the 2025 AMUG Conference. Join us and our guests at 16:00 GMT on Wednesday, 12th February.Who won the 2024 3D Printing Industry Awards?Subscribe to the 3D Printing Industry newsletter to keep up with the latest 3D printing news.You can also follow us on LinkedIn, and subscribe to the 3D Printing Industry Youtube channel to access more exclusive content.Featured image shows the Sintavia HQ. Photo via Sintavia.