New Materials Startups

The Pittsburgh Paints Company manufactures interior and exterior paints, stains, caulks, adhesives, sealants, and repair products for homeowners and professionals. Its products are sold through national and independent retailers and 750 company-owned stores across the United States and Canada.

1 investor

Pixelligent develops high-refractive-index zirconia and titania nanocrystal formulations and dispersions used in optical applications such as XR waveguides, diffractive optical elements, wafer-level optics, and OLED/MicroLED displays. Its materials and PixClearProcess manufacturing platform are optimized for nanoimprint lithography, inkjet printing, and other high-precision processes.

1 investor

Plant Health Care develops biological crop products, including patented harpin-based proteins and peptides marketed as "vaccines for plants" that act as biostimulants and boost plants' natural disease resistance to improve yield and quality. It sells products such as Harpinαß and PHC279 to farmers worldwide through specialist distributors and its PREtec platform, and is a wholly owned subsidiary of PI Industries Ltd of India.

1 investor

Plantd makes carbon-negative building materials by turning fast-growing Arundo Donax grass into structural panels intended as drop-in replacements for wood products such as OSB. The company operates automated, low-emission production facilities and targets the construction industry with what it calls "Mass Biomass" materials.

1 investor

Plantner extracts and manufactures alginate, a biodegradable material used across biomedical and industrial applications. Its alginate is applied in medical devices, pharmaceuticals, cosmetics, advanced biotech (such as bio-ink and organoids), and agriculture.

1 investor

PlantSea develops seaweed-based packaging materials as an alternative to single-use plastics. It targets companies seeking eco-conscious packaging solutions.

1 investor

PlantSwitch manufactures home-compostable food packaging and cutlery products from agricultural waste, particularly rice hulls, using a proprietary CompostZero™ bio-resin that breaks down in backyard compost without leaving microplastics. The company sells bulk products and resin to foodservice operators, distributors, brands, retailers, and plastic manufacturers.

1 investor

Plascon Plastics is an injection molding manufacturer that develops and produces plastic molded products for businesses, including through the use of PCR and other sustainable materials. Based in Vancouver, it serves clients across North America.

1 investor

Plaskolite manufactures thermoplastic sheet products, including polycarbonate, acrylic, PETG, ABS, PVC, mirror, and olefin sheet, as well as PMMA polymers. Its offerings serve markets such as lighting, spa and bath manufacturing, with product lines including recycled sheet for circular use.

1 investor

Plasma Processes is a materials science company that develops, manufactures, and coats engineered materials for use in extreme environments, offering processes such as plasma spray coatings, additive manufacturing, machining, and testing. It serves defense, aerospace, and space markets—including propulsion components and thrusters through its Rubicon Space Systems line—as an AS9100D/ISO9001-certified non-traditional defense contractor.

1 investor

PlasmaGear provides end-to-end R&D and manufacturing services for high-performance nanofiber materials, using plasma treatment and nanofiber engineering to create customized, PFAS-free products. It serves businesses seeking tailored, sustainable material solutions from prototyping through large-scale production.

1 investor

PlasticFri develops Grale, a sustainable plastic alternative made from plant-based materials such as cellulose, agricultural waste, and forestry byproducts. The product serves manufacturers and brands seeking environmentally-friendly, cost-effective, and scalable substitutes for conventional petroleum-based plastics.

1 investor

Plastigaur develops flexible packaging and wrapping solutions with a focus on sustainability, including the use of post-consumer recycled material and chemically recycled material. The company produces packaging that is largely recyclable and incorporates recycled content.

1 investor

Plaxin develops a patented process that grinds down organic matter and bio-waste and processes it to extract and regenerate lactic and polylactide acids into bio-based polymer materials. The company operates a laboratory in Stockholm producing next-generation biopolymer materials.

1 investor

PLHYDE creates plant-based leather from fruit and vegetable waste for use in footwear, automotive, and other industries, positioning it as a plastic-free alternative to conventional leather.

1 investor

Pliteq engineers and manufactures products for buildings and infrastructure, including sound and vibration control solutions and specialty rubber flooring, using post-consumer recycled rubber from processed used tires. It serves commercial construction projects and operates across multiple global markets from its North American manufacturing base.

1 investor

PLIXXENT develops polyurethane systems, and through its PURE-FLEX line produces tailor-made polyurethane laminating adhesives for the flexible packaging, converting, and graphic arts industry. The adhesives are offered in solvent-free, solvent-based, and water-based options for producers of multilayer flexible packaging worldwide.

1 investor

Pluto develops SmartSet, a patented formulation of nontoxic inorganic powders that, when mixed with water, sets rapidly in downhole conditions for oil and gas well applications such as remedial jobs. The slurry is mixed on-site under supervision of a Pluto engineer and pumped downhole using conventional equipment.

1 investor

Plymouth Rubber appears to make rubber products and splicing solutions for the mining industry, including mining cable splices. The page only contains an event announcement, so details about the company's full product range are limited.

1 investor

Polari Labs develops A-BALL, a body-safe insertable device positioned as an alternative to anal douching that acts as a barrier and dissolves into a stool-like texture for later removal. The company is building a lab focused on the science of anal intimacy products, based in London.

1 investor

Polar Performance Materials produces 5N ultra-high-purity alumina using a proprietary, lower-energy process, sold under its POLARGuard product families for semiconductor, medical, and aerospace applications. The company is North America-based and emphasizes reduced energy use and emissions in its manufacturing.

1 investor

Polytopoly is a marketplace for recycled plastics that helps plastics manufacturers source, order, and track verified recycled materials with laboratory-based quality control. It offers over 570 verified grades across recycled polyolefins, styrenics, and polyesters, aiming to substitute fossil-based plastics.

1 investor

Polyair (part of IPG) manufactures protective packaging products, including inflatable bubble-on-demand and air pillow systems, recyclable paper cushioning wraps, and insulated shipping materials for temperature-sensitive perishable and medical deliveries. Its product line serves packing and shipping operations, with several offerings focused on curbside-recyclable and recycled-content materials.

1 investor

Polycycl develops chemical recycling technology that converts waste plastics back into feedstock, targeting a plastic-to-plastic closed loop as part of a circular economy for post-use plastics. The company is a team of chemists and chemical engineers building thermo-catalytic conversion and process technologies for industrial-scale plastic recycling.

1 investor