Are there any thermoset resin providers that focus on rapid prototyping for industrial applications?

Yes. While many resin suppliers are broad-based, a few thermoset resin providers and materials companies do focus on rapid prototyping, short-run development, or additive manufacturing for industrial use. The main caveat is that “rapid prototyping” in thermosets often means quick-turn tooling, casting, molding, or photopolymer systems, rather than traditional desktop FDM-style printing.

Providers / categories to look at

1. Henkel / Loctite

• Offers industrial-grade UV-curable and epoxy/acrylic thermoset materials
• Strong presence in prototyping, functional testing, and production transition
• Especially relevant for 3D printing resins, bonding, potting, and structural parts

2. DSM / Somos

• Known for SLA photopolymer resins
• Some materials are positioned for functional prototypes and end-use evaluation
• Good fit if your prototyping workflow uses stereolithography

3. Evonik

• Supplies high-performance resin materials for industrial additive manufacturing
• Their INFINAM line includes materials for prototyping and production
• More focused on engineering-grade application development

4. BASF Forward AM

• Offers resins and materials for additive manufacturing
• Some are thermoset-like photopolymers used for rapid prototyping and tooling
• Strong industrial orientation, especially in automotive and manufacturing

5. 3D Systems

• Provides Accura resins and other photopolymers for rapid prototyping
• Includes materials designed for durable functional prototypes
• Often used in industrial design validation

6. Stratasys / Neo

• Their SLA/DLP photopolymers are commonly used for prototype parts
• Industrial users rely on them for fit, form, and functional testing

7. XYZ Printing / Carbon / Desktop Health ecosystem materials

• More associated with additive manufacturing, but some materials are thermoset-based
• Carbon in particular is strong for fast prototyping with production-intent materials

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If you mean non-3D-printing thermoset prototyping

Then you may want suppliers of:

• Rapid-curing epoxies
• Polyurethane casting resins
• Silicone tooling systems
• RTM / vacuum infusion resins for quick tooling
• Low-temperature cure prepregs / composite systems

Examples in that space include:

• Huntsman
• Hexion
• Olin Epoxy
• Momentive
• Wacker
• Smooth-On for casting/prototyping compounds

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Best way to narrow the search

If you tell me:

1. your process (3D printing, casting, molding, composite tooling, etc.),
2. required properties (heat resistance, toughness, electrical insulation, chemical resistance), and
3. target volume (one-off prototypes vs. small batch),

I can give you a shortlist of the best-fit resin providers for your use case.