Aether Bio

What Aether Bio does

Aether Bio, Inc. (also operating as Aether Biomachines) is a private AI-driven protein engineering company headquartered in Menlo Park, California. The company develops a proprietary Protein Function Model trained on internally generated datasets from a robotic high-throughput screening lab that runs millions of micro-scale experiments, positioning itself as the developer of the first model that discovers novel proteins with novel functions. Its core technology combines predictive modeling, automated experimentation, and a real-time optimization loop intended to compress discovery cycles from years to months.

The company's commercial product portfolio spans additive manufacturing filaments and in-development industrial materials. The RapidPrint™ Series (PA6-CF10) and Ultra™ Series (PA12-CF25) are reinforced nylon and carbon-fiber loaded filaments for FFF/FDM 3D printing targeting defense, aerospace, and industrial manufacturing customers. In development are Next-Gen Super Materials (aerospace-grade aluminum-replacing polymer additives for lightweighting) and Next-Gen Critical Mineral Processing (AI-designed protein binders for selective extraction of rare earths, lithium, nickel, and germanium from domestic sources).

Aether generates revenue primarily through hardware sales of industrial filaments and is positioned for future licensing and royalty economics on its advanced materials and critical mineral protein platforms. Distribution is direct enterprise sales, with the company explicitly stating it is selectively taking on new clients and pricing is available only upon contact. The company has raised approximately $64 million in disclosed funding across a 2023 Series A led by Natural Capital and Unless, a December 2025 round led by Tribe Capital with Henkel Corporation participation, and several earlier angel and SAFE rounds. Leadership consists of Founder & CEO Pavle Jeremic and Co-Founder & President Jay Zaveri (appointed December 2025).

Name

Aether Bio

Legal name

Aether Bio, Inc.

Website

https://aetherbio.com

Company type

Private

Founded year

2023

Operating status

Operating

Headcount range

11–50 employees

Short description

Aether Bio is an AI-driven protein engineering company that develops a proprietary Protein Function Model trained on robotic lab data to design novel proteins for industrial applications, selling 3D printing filaments and developing aerospace-grade polymers and critical mineral extraction solutions for defense, aerospace, and industrial customers.

Ownership category

akta.pro rank

Product category

Industrial Biotechnology

NAICS

Research and Development in Biotechnology (except Nanobiotechnology) (541714)

SIC

Services-Commercial Physical & Biological Research (8731)

akta.pro primary industry

Protein Engineering & Directed Evolution Platforms (enzyme/therapeutic protein optimization) (HLAAAIAC)

akta.pro secondary industry

Reagents, Chemicals & Assay Kits (Buffers, Antibodies, ELISA, Enzymes) (HLAGAIAI)

Keywords

• AI protein design
• Enzyme engineering
• 3D printing filaments
• Industrial biotechnology
• AI molecular machines

Headquarters

HQ city

Menlo Park

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Technology or R&D, Infrastructure, Operations, Marketing or Sales

Revenue model

1. 3D Printing Filament Products: Sale of proprietary 3D printing filaments including RapidPrint™ Series (PA6-CF10) and Ultra™ Series (PA12-CF25) for FFF/FDM additive manufacturing in defense, aerospace, and industrial markets.
2. Advanced Materials Licensing: Next-Gen Super Materials in development for aerospace-grade polymer series targeting aluminum replacement in lightweighting applications.
3. Critical Mineral Processing Solutions: AI-designed proteins in development for selective extraction and separation of critical minerals including rare earths, lithium, nickel, germanium from domestic resources.

Pricing tiers

Go-to-market motion2 records

Distribution channels1 record

Marketing channels3 records

Core offering

Aether Bio develops an AI-powered Protein Function Model that discovers and designs novel proteins for industrial applications, trained on data from millions of micro-scale experiments in its proprietary robotic high-throughput screening lab. The company commercializes these AI-designed proteins into physical products, including reinforced nylon and high carbon-fiber loaded filaments (RapidPrint™ and Ultra™ Series) for high-speed FFF/FDM 3D printing in defense, aerospace, and industrial manufacturing.

Product overview

Aether Bio is an AI-powered protein engineering company offering a platform-plus-products architecture. The core is the Protein Function Model, which discovers and designs novel proteins for industrial applications. Commercial products include RapidPrint™ Series (reinforced nylon filaments for high-speed 3D printing) and Ultra™ Series (high carbon fiber loaded filaments for demanding applications). In development are Next-Gen Super Materials (aerospace-grade polymer additives for aluminum replacement) and Next-Gen Critical Mineral Processing (AI-designed protein binders for selective mineral extraction). The platform enables proteins that synthesize polymers for manufacturing and selectively capture minerals from domestic sources.

Differentiator

Problem solved

Functional benefit

Brands

• RapidPrint™ Series: Reinforced nylon filaments containing Aether's proprietary additive for faster, stronger FFF/FDM based additive manufacturing, boosting throughput and productivity across defense, aerospace, and industrial manufacturing. Currently available as RapidPrint™ PA6 CF10 Filament.
• Ultra™ Series

Products and services

• RapidPrint™ PA6 CF10 Filament Reinforced nylon filament containing Aether's proprietary additive that blends into engineering grade nylons, significantly improving melt flow and enhancing mechanical properties for faster, stronger FFF/FDM based additive manufacturing. Targeted at defense, aerospace, and industrial manufacturing applications.
• Ultra™ PA12 CF25 Filament

Quantifiable outcome

• Discovery cycles reduced from years to months
• +2 more outcomes

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability3 records

Feature5 records

Scale indicators3 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Spiber: Japanese company producing protein-based materials (Brevada) via fermentation for textile and automotive applications. Strong comparable for Aether's Next-Gen Super Materials product line — both engineer proteins to replace conventional structural materials.
• Arzeda: Computational protein design company creating novel enzymes and proteins for industrial applications in chemicals, materials, and agriculture. Direct comparable in using AI/ML to design proteins for non-pharma industrial end uses.
• Generate Biomedicines: Generative AI platform for protein design with a similar 'protein function becomes predictable' thesis. More focused on therapeutic proteins, but shares the core technology approach and ambition of making protein engineering scalable.
• Cradle Bio: AI-driven protein design platform targeting industrial biotech applications including enzymes and sustainable manufacturing. Highly comparable model — generative AI for protein engineering aimed at industrial use cases, similar stage and capital profile.
• Bolt Threads: Engineers proteins via synthetic biology and fermentation to produce sustainable materials for textiles and cosmetics. Closest direct peer to Aether — both apply engineered proteins to material products, though Bolt Threads is more established in textiles and apparel.

Emerging players

• Markforged: Industrial 3D printing company with a strong portfolio of high-performance carbon fiber reinforced filaments and continuous fiber materials. Direct competitor for RapidPrint™ and Ultra™ in the enterprise additive manufacturing market.
• Profluent Bio: AI protein engineering company applying large language model techniques to protein design. Comparable technology stack and similar early-stage commercial development trajectory to Aether.
• AMSilk: German company producing bio-fabricated silk proteins for use in textiles, medical devices, and automotive components. Comparable to Aether's protein-based materials approach, though more focused on silk variants.
• Modern Meadow: Bio-fabricated materials company using engineered proteins and fermentation to produce sustainable leather-alternative materials. Adjacent comparable for Aether's protein-driven material platform, focused on consumer/leather applications.

Broad incumbents

• Ginkgo Bioworks: Public, large-scale synthetic biology platform that programs organisms for industrial applications across materials, agriculture, and pharma. Broader and more diversified than Aether, but operates in the same AI + engineered biology space with similar target verticals.

Market position

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/aetherbio

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds9 records

Investors25 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Aether Bio