Impossible Objects Raises $40M to Scale Composite 3D Printing for Production

Impossible Objects has closed a $40 million Series B funding round to scale its Composite-Based Additive Manufacturing (CBAM) technology. Inflection Equity led the financing, with participation from Aaron Wealth Management, OCA Ventures, Impact Capital, and Excell Partners. The company will use the funds to increase production of its CBAM 25 industrial systems, expand customer deployments, and build out the service and commercial teams needed for a growing installed base.

CBAM works differently from the fused deposition and powder-bed processes most people associate with 3D printing. The system deposits a fluid selectively onto sheets of carbon-fiber reinforcement material, then fuses the stacked sheets under heat and pressure. The result is a composite part with continuous fiber reinforcement throughout, rather than the chopped or short-aligned fibers found in most carbon-fiber filaments. Impossible Objects claims the CBAM 25 produces parts with tensile strength up to 200 MPa, roughly four times stronger than competing additive manufacturing processes, with minimal shrinkage and warpage.

The CBAM 25 prints at up to 25 layers per minute. Impossible Objects describes this as 15 times faster than competing production-grade additive technologies. That speed is what separates the system from the long line of composite 3D printing startups that never made it past prototype-stage economics.

Where CBAM is already being used

Since the CBAM 25 launched in early 2025, Impossible Objects has taken five orders and deployed systems at the US Air Force, the National Institute for Aviation Research, the Oregon Manufacturing Innovation Center, and Rochester Institute of Technology. The technology is on the US Air Force Technology Roadmap.

At the US Army Rock Island Arsenal, CBAM is being used to produce drone bodies at a rate of up to 10,000 per month. That is a concrete, high-volume production claim that most 3D printing companies cannot match. The system is also being used to produce parts with integrated wiring embedded inside the additively manufactured composite structure, a capability developed under SBIR Phase I and Phase II government awards.

What the funding round says about the market

Impossible Objects had already secured roughly $20 million in US government contracts and awards before this Series B. That government backing validated the technical claims. The $40 million private round signals that investors now believe CBAM can scale commercially, not just in defense programs.

The company plans to raise an additional $30 million to $50 million within the next 12 to 18 months, according to reports. The stated use for this round is system production capacity. If Impossible Objects can deliver machines at the rate orders are arriving, the CBAM 25 could become a fixture in aerospace and advanced manufacturing supply chains over the next few years.

Composite and continuous-fiber 3D printing has been one of the more competitive corners of the industrial AM market. Companies from Markforged to smaller specialists all chase the same basic promise: parts as strong as machined metal at a fraction of the weight, printed rather than machined or molded. A $40 million raise for a company whose main differentiator is print speed, not just material strength, suggests that throughput is becoming the deciding factor for real production adoption.