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nTop Secures $65M in Series D Funding

Written by nTop

Published on November 18, 2021

The new capital will help us expand the types of engineering applications our software serves in the product development process and expand our global team.

We are excited to announce that we have secured $65 million in Series D funding, bringing our company’s total secured financing to date to $135 million. The funding round was led by Tiger Global with participation from Oldslip Group and existing investors Root Ventures, Canaan Partners, DCVC, Haystack, and Insight Partners.

“nTop customers use this software to design the most critical parts of their products. We’re excited for nTop to emerge as the new leader in engineering software as advanced manufacturing continues to push the boundary of how products are made.”

- John Curtius, Partner at Tiger Global Management

We are looking forward to getting our software in the hands of more design engineers who will benefit from nTop’s expanding range of features and capabilities. We will use this new capital to expand the range of engineering applications our software unlocks, strengthen our global footprint, and expand our team.

Solving engineering problems

Our mission at nTop is to provide next-generation design tools to engineers and designers in the aerospace, automotive, medical device, and consumer industries.

We have built our software upon three core technologies; implicit modeling, field-driven design, and the block system. Together, these core technologies empower users to solve complex engineering problems in ways that were previously impossible using existing CAD tools.

“Earlier in my career, I found that most engineering software and CAD tools were a bottleneck in driving innovative design. We built our company specifically to solve engineers’ problems, allowing them to fully utilize the power of additive manufacturing processes and fill the gaps left by these old legacy design tools.”

- Bradley Rothenberg, founder & CEO of nTop

Our journey in 2021

In less than a year, nTop has doubled its revenue and customer base. Today, our software is used by engineers in over 300 companies, including industry leaders like Ford, Lockheed Martin, Honeywell, Emerson, and Wilson. Here are some product highlights from 2021.

nTopology 3.0 with GPU acceleration

In April, we launched nTopology 3.0. This major release introduced GPU acceleration, bringing down visualization time of highly-complex structures from minutes to mere seconds.

Seeing is believing, so here’s a video that showcases this new capability in action:

Video demonstrating real-time footage recorded on a laptop from nTopology 3.0 with GPU acceleration ON.

Video demonstrating real-time footage recorded on a laptop from nTopology 3.0 with GPU acceleration ON.

The FDM Fixture Generator

In collaboration with the 3D printer manufacturer Stratasys, we developed multiple automated design tools that streamline the adoption of 3D printing on the factory floor.

The FDM Fixture Generator is a tool that automates 90% of the design work required for simple jigs and fixtures. The Masking Fixture Module eliminates the need for manual masking techniques.

The FDM Fixtures Generator is a design automation tool for the factory floor.

Enterprise PLM integrations

Recently, we released our PLM connector that streamlines nTop’s integration to enterprise PLM systems. This new integration gives enterprise customers a clear roadmap for augmenting their product development software stack with powerful generative design capabilities.

nTop now integrates to PLM systems through the nTop PLM Connector.

Our team is expanding

Last year, we increased our total number of team members by more than 40%. Yet, to meet our ambitious goals, we need to add new talent to our team in 2021 and beyond.

Visit our careers page to learn more about the current opportunities.


nTop (formerly nTopology) was founded in 2015 with the belief that engineers’ ability to innovate shouldn’t be limited by their design software. Built on proprietary technologies that upend the constraints of traditional CAD software while integrating seamlessly into existing processes, nTop allows designers in every industry to create complex geometries, optimize instantaneously, and automate workflows to develop breakthrough 3D-printed parts in record time.