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nTop

Other B2B Software · New York City, United States · Founded 2015

Computational design software for advanced manufacturing applications MoreLess

nTop, formerly known as nTopology, is a New York-based software company developing next-generation engineering design tools for advanced manufacturing. Founded in 2015 by CEO Bradley Rothenberg and Greg Schroy, the company was established to address a gap in the market where traditional CAD software could not handle the complex geometries demanded by modern engineering and 3D printing. Rothenberg, with a background in architecture from Pratt Institute, conceived the idea while consulting for Lockheed Martin, recognizing that manufacturing was no longer the bottleneck, but rather the software was limiting design innovation.

The company's core product, the nTop platform, is a computational modeling software that enables engineers to design, test, and iterate on highly complex parts with speed and efficiency. It utilizes an implicit modeling kernel, which represents 3D solids with mathematical equations, allowing for the creation of intricate structures like lattices, architected materials, and topology-optimized parts that are often lighter and higher-performing. This technology is particularly suited for additive manufacturing but also supports other advanced methods like molding, milling, and casting. The platform integrates with existing design, analysis, and simulation tools such as ANSYS, Abaqus, and Nastran, streamlining the entire workflow from concept to production.

nTop serves a range of industries including aerospace, automotive, medical devices, and consumer products. Its client roster includes prominent organizations like Lockheed Martin, NASA, Raytheon, BMW, and Trek Bikes. The business model revolves around providing its software to engineering teams to accelerate product development and innovation. By automating complex design workflows, nTop enables companies to bring better products to market faster. The company has raised significant funding, totaling over $135 million, to support its growth and expand its platform's capabilities.

Keywords: computational design, advanced manufacturing, generative design, topology optimization, additive manufacturing software, 3D printing software, implicit modeling, engineering design tools, architected materials, lattice structures, design automation, high-performance parts, product development, aerospace engineering, automotive design, medical device design, lightweighting, simulation software, CAD software, digital foam

Valuation $100–500M
Revenue $10–50M
Headcount 100–500
Total funding $100–500M
Unlock exact values This page shows ranges. Dealroom has the exact numbers for nTop and the history behind them.

Talent graph

nTop's talent

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Team profiled 28 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 4 quality Hidden — book a demo/100
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Investors

20 investors on nTop's cap table

Sourced from Dealroom's funding and investor records. Investor profile links are shown where available.

Seed 6 investors entered at this stage
Bob Pasker
CSC Upshot
1517 Fund
Pathbreaker Ventures
Greg Schroy
Notation Capital
Series A 6 investors entered at this stage
Tuesday Capital
Haystack
DCVC
Root Ventures
Lockheed Martin Global
Canaan
Series B+ 8 investors entered at this stage
Insight Partners
In-Q-Tel
GRIDS Capital
Tiger Global
OldSlip Group
GVC Venture Fund
Hestia Venture Partners
NVentures

Global footprint

Where nTop has talent and traffic

Workforce by country
7 countries with
team presence
🇺🇸 United States80.3%
🇩🇪 Germany10.5%
🇫🇷 France2.6%
🇬🇧 United Kingdom2.6%
🇯🇵 Japan1.3%
Top 5 of 7 shown
Web traffic by country
110K monthly visits
across markets
🇺🇸 United States31.4%
🏳️ Korea5.1%
🏳️ Republic of5.1%
🇬🇧 United Kingdom5%
🇩🇪 Germany4.6%
Top 5 markets shown

Market sentiment

What the market is saying about nTop

An AI-synthesized read of the highest-engagement posts about nTop on X over the past 7 days. We rank by likes & retweets, ignore corporate channels, and surface the themes that broke out from real people.

Reading the room on X — pulling top posts and synthesizing themes…

Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour

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