Grow+Oyster+Reefs_Postcard.webp
PRODUCT: GROW CONCRETE, after one year; LOCATION: MUSEUM OF UNDERWATER ART, FL

Grow

Biomimetic substrates for jumpstarting native reefs — the natural solution.

Reefs

Protecting Shorelines

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Dampening Wave Energy

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Purifying Water

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Providing Habitat

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Enhancing Alkalinity

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Uplifting Biodiversity

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Protecting Shorelines + Dampening Wave Energy + Purifying Water + Providing Habitat + Enhancing Alkalinity + Uplifting Biodiversity +

Our coastlines are threatened by sea level rise and storm surge.

Long before seawalls and riprap, reefs - now in decline by over 50% — protected shorelines by reducing wave energy, filtering water, sequestering carbon, and creating living habitats that supported entire ecosystems. Our products work with reef-building organisms to rebuild this coastal defense infrastructure.

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[ OUR TECHNOLOGY ]

Featured Products

Reef Tile

Patented Design

+ Flexible configurations: Deployed in straight lines, gentle curves, or group patterns that follow your shoreline's natural contours - hand-deployed

+ Integrated seagrass pockets: The only product on the market with built-in spaces for seagrass establishment

+ Beyond the footprint: Engineered to serve as a catalyst — oysters bridge outward, expanding reef formation beyond the tile itself.

+ Low-cost installation: Hand-deployed tiles don’t require expensive machines

Proven Results

3rd party testing by the Chesapeake Bay and Virginia Institute of Marine Science in the Atlantic Ocean:

+ 50–100 oysters attach per tile in the first season alone

+ Jumpstart native reefs: stable multi-generational recruitment in subsequent years

+ Biodiversity surge: Immediate habitat and shade and protection for crabs, fish, juvenile species, and seagrasses

+ Living infrastructure: Natural catch documented after just 1 year in field conditions

+ Wave attenuation: Decreases shoreline erosion by dampening wave energy by up to 85%, proven by computational fluid dynamics (CFD) modeling.

Specification

Dimensions: 12"L × 12"W × 8.5"H (30cm × 30cm × 22cm)
Weight: 33 lbs

The reef-generating building block for coastal protection


Reef Disk

The versatile solution for maximum species recruitment, spat collection, oyster gardening, and research

Patented Design

+ Three surfaces: Optimized for target species.

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Targeted Species: Optimized for oysters, mussels, corals, sponges and serpulids

+ Multiple deployment options: Insert between breakwater rocks, hang from docks, piers, buoys, or suspend on vertical/horizontal rope systems

+ Reef Rope systems: Pre-strung ropes in 10 ft or custom lengths with 3 surface variations; purchase ready-made or build your own

+ Removable and reusable substrate: Durable for repeated cycles after harvest

Proven Results

Baltimore Harbor, Boston Harbor, Lower Chesapeake Bay, and University of Florida field data:

+ 100% surface coverage within one year from natural catch

+ 3 layers of mussels in first-year testing

+ 85% oyster coverage with room for maturation

+ Rapid colonization across multiple marine environments

Specification

Dimensions: 3.5" (h) × 4" (d) with 1.25" center hole*

Weight: 5 lbs

*Flexible sizing: Larger models available


CaCO Concrete

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Patented Design

+ Biomimetic Design: Formulated to match the oyster shell, coral skeleton, or other reef-building species

+ Eco-positive Formula: All natural ingredients and no chemical admixtures.

+ Biodiversity Support: Provides early stage nutrition to developing oysters and other reef-building organisms.

+ Increased Recruitment: Formula mimics an adult reef, sending chemical cues to attract oyster embryos and other beneficial species.

+ Flexible Scaling & Application: Works as a casting and 3D-printing concrete

+ Ocean Alkalinity Enhancement (OAE): Neutralizes surrounding ocean water p.H. to a safe haven of 8.2 (tunable to alternative levels upon request)

+ Lower Carbon footprint: Uses minimal cement and can be sourced locally, near any site.

Proven Results

Testing by Virginia Institute of Marine Science:

+ Multi-generational species growth: Provides a stable substrate for reef growth over subsequent years

+ Living infrastructure: Increased natural catch documented after just 1.25 years in field conditions

Approved product of The Nature Conservancy.

Specification

Inquire to learn more.

MIT-tested marine concrete

Oysters

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Mussels

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Tube Worms

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Kelp

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Stony Corals

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Cold Water Corals

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Warm Water Corals

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Seagrasses

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Oysters ✳︎ Mussels ✳︎ Tube Worms ✳︎ Kelp ✳︎ Stony Corals ✳︎ Cold Water Corals ✳︎ Warm Water Corals ✳︎ Seagrasses ✳︎

1000+ units deployed

Northern California

Chesapeake Bay

Atlantic Ocean

[ AS FEATURED IN ]

Founder, Inventor, CEO

Evelyn Tickle

After more than two decades working in concrete fabrication and architecture, Evelyn began asking a new question:

What if concrete could do good in the world?

As she learned about the dramatic collapse of native oyster reefs from her small sailboat in the Chesapeake Bay, she saw a design opportunity hidden inside an environmental crisis.

Oysters, she discovered, are master builders. They create vast reef structures from calcium carbonate, forming living architecture beneath the water’s surface. Drawing on her background in material science, biomimicry, and architecture, Evelyn set out to develop a concrete that could chemically and structurally support that same kind of life. The result was our patented biophilic concrete mix and growing family of reef restoration products.

Today, Evelyn still leads our product design and material innovation, advancing regenerative infrastructure for coastlines around the world.

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