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Outbyte PC Repair FREEClear out junk files and repair common Windows errorsFree Scan →Outbyte Driver Updater FREEFix the driver behind crashes, sound loss and screen glitchesFind Drivers →Tidal Vision’s financing story runs from $46.7 million reported in a 2024 filing to a $140 million Series B the company announced in February 2025. The figures are connected: the later round included the $46.7 million, so they should not be counted as two entirely separate cash raises. Tidal Vision makes chitosan-based industrial solutions from seafood-processing byproducts, including crustacean shells.
How much has Tidal Vision raised?
GeekWire reported on May 17, 2024, that an SEC filing disclosed $46.7 million in fresh cash for Tidal Vision. In its February 2025 coverage of the company’s Series B, GeekWire explained that roughly half of the $140 million round included that $46.7 million. The remaining amount disclosed in the May 2024 filing reflected previously issued notes converting into equity. The two reported figures therefore describe related stages of the financing, not two wholly separate cash raises. GeekWire’s May 2024 report and February 2025 coverage provide that timeline.
On February 5, 2025, Tidal Vision announced that it had closed an oversubscribed $140 million Series B. The company said the funding would support expanded production capacity and research and development for chitosan-based solutions. Cambridge Companies SPG led the round; the company also named Eni Next, Milliken & Company, KIRKBI Climate, Convent Capital, SWEN Capital Partners’ Blue Ocean Fund, MBX Capital, and Oman Investment Authority’s IDO Investments as participants. Tidal Vision’s Series B announcement lists the investors and intended use of the funding.
What Tidal Vision makes from crab shells
Tidal Vision is a Bellingham, Washington, biomolecular solutions company. It says it converts seafood-industry byproducts, including crustacean shells, into chitosan and chitosan-based products for water science, agriculture, and materials applications. Chitosan is the name for the chemical family at the center of the company’s business; it is not simply a consumer product made from crab shells. Tidal Vision’s company site describes its mission and business scope.
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- Combined for Maximum Growth: Neptune’s Harvest Organic Crab & Lobster Shell fertilizer is an excellent dry organic plant food made from natural crab and lobster shell meal; this organic fertilizer supports lawns, garden beds, bulbs, indoor and outdoor plants and vegetables by supplying calcium, magnesium, and nitrogen that work with soil to support long-term soil health and steady performance throughout the growing season and is safe for kids and pets
- Power of Crab & Lobster Shell: Crafted entirely from crab and lobster shell meal, this organic plant fertilizer contains 17–23% calcium and 1.3–1.7% magnesium and is naturally high in chitin (kite-en); this mineral-rich profile supports soil nutrition while also helping control root nematodes, grubs, ants, slugs, and fungus, making it a dependable choice for gardeners managing soil conditions organically
- How to Use: This crab meal organic fertilizer can be worked into soil before planting or applied as a top dressing to established plants; suitable for lawns using a broadcast spreader, garden beds, compost, potting mixes, seedbeds, and bedding plants; one 10 lb bag covers up to 1,000 sq. ft., making it easy to apply across multiple growing areas and gardening routines. For enhanced results, pair with our Kelp Meal to increase overall benefits
- Supports Soil Performance: This organic fertilizer breaks down slowly for natural slow release, adds organic matter to soil, helps soil drain yet retain moisture, helps sequester carbon and aerates soil to give roots room to move and breathe; roots reach deep to access shell chucks as a food source, supporting deeper root systems over time while improving overall soil structure; generically approved by OMRI for organic production
- Package Contents: Neptune’s Harvest Organic Crab & Lobster Shell Multi-Purpose Plant Food (5-3-0) - 4 lb Resealable Bag (Pack of 1)
The company traces its origin to co-founders Craig Kasberg and Zach Wilkinson meeting in Alaska in 2015. Its founding story centers on using seafood-processing leftovers that might otherwise be discarded as feedstock for chitosan. Tidal Vision says two billion pounds of fish and crab byproducts are discarded annually in Alaska; that is the company’s figure, and its page does not specify a year for it. The company’s story page presents the origin and statistic.
Where the business operates
Tidal Vision organizes its work into three named divisions, each focused on a different application area:
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- Crab Meal Fertilizer - Organic and All Natural
- Bulk Crab Meal (Ground Crab Shell) from 5-15 pounds
- Crab Meal adds Nitrogen and Phosphorus to soils!
- Crab Meal improves drainage and H2O and Oxygen capacity in soil
- Crab Meal is extremely beneficial in Vegetable gardens and in poor soils
- Tidal Clear: water-related solutions.
- Tidal Grow: agriculture, including crop protection and plant nutrition using chitosan-based technologies. Tidal Grow’s site describes those applications.
- Tidal Tec: biomaterials.
KIRKBI’s Annual Report 2024 also identifies Tidal Clear, Tidal Grow, and Tidal Tec as the company’s divisions. KIRKBI Annual Report 2024 provides that portfolio context.
What the company says about its process
Tidal Vision describes a process chain of extraction, precision modification, formulation, and integrated application. It calls its Chitofining extraction process zero-waste and says its Zale Technology can produce concentrations at 5X or higher while reducing viscosity by 98% or more. These are Tidal Vision’s descriptions and performance claims, not independent validation. The company’s technology page explains its process and claims.
Rank #3
- Combined for Maximum Growth: Neptune’s Harvest Organic Crab & Lobster Shell fertilizer is an excellent dry organic plant food made from natural crab and lobster shell meal; this organic fertilizer supports lawns, garden beds, bulbs, indoor and outdoor plants and vegetables by supplying calcium, magnesium, and nitrogen that work with soil to support long-term soil health and steady performance throughout the growing season and is safe for kids and pets
- Power of Crab & Lobster Shell: Crafted entirely from crab and lobster shell meal, this organic plant fertilizer contains 17–23% calcium and 1.3–1.7% magnesium and is naturally high in chitin (kite-en); this mineral-rich profile supports soil nutrition while also helping control root nematodes, grubs, ants, slugs, and fungus, making it a dependable choice for gardeners managing soil conditions organically
- How to Use: This crab meal organic fertilizer can be worked into soil before planting or applied as a top dressing to established plants; suitable for lawns using a broadcast spreader, garden beds, compost, potting mixes, seedbeds, and bedding plants; one 10 lb bag covers up to 1,000 sq. ft., making it easy to apply across multiple growing areas and gardening routines. For enhanced results, pair with our Kelp Meal to increase overall benefits
- Supports Soil Performance: This organic fertilizer breaks down slowly for natural slow release, adds organic matter to soil, helps soil drain yet retain moisture, helps sequester carbon and aerates soil to give roots room to move and breathe; roots reach deep to access shell chucks as a food source, supporting deeper root systems over time while improving overall soil structure; generically approved by OMRI for organic production
- Package Contents: Neptune’s Harvest Organic Crab & Lobster Shell Multi-Purpose Plant Food (5-3-0) - 12lb Resealable Bag (Pack of 1)
Those technical statements do not by themselves establish the company’s overall environmental performance. The available sources do not provide an independently audited lifecycle analysis or third-party validation of comparative environmental claims, such as whether a particular Tidal Vision solution has a lower footprint than an alternative across its full production and use cycle.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What the financing means—and what it does not prove
The Series B announcement shows that Tidal Vision secured substantial investor backing to expand production and research and development. It does not, by itself, establish that the company’s products have achieved a particular market share, commercial scale, or independently measured environmental benefit. Craig Kasberg, co-founder and CEO, told GeekWire that the company aims to turn a problematic waste stream into something beneficial that displaces non-biodegradable toxins and heavy metals. That statement describes the founder’s view of the company’s impact, not independent proof of those outcomes. GeekWire’s 2024 report carries the quotation.
Rank #4
- MARINE-DERIVED NUTRIENTS Extracted from premium shrimp and crab shells, this bio-based solution enriches the soil, helping your lawn achieve a lush, vibrant, and deeper green color.
- PROACTIVE GROWTH SUPPORT Early care leads to better results. This product reinforces the plant’s biological sturdiness, helping it withstand environmental stressors and soil-borne challenges for sustained health.
- ULTRA-EFFICIENT CONCENTRATE A little goes a long way. With a high-efficiency application rate of just 0.1%–0.5%, Once every 7-14 days. you can significantly enhance plant vigor and promote robust growth with minimal dosage.
- TOTAL WATER-SOLUBILITY This fine, professional-grade powder dissolves quickly and completely in water. It is designed for effortless mixing and application via spray or irrigation systems.
- PROFESSIONAL SPECIFICATIONS Features Chitosan Oligosaccharide purity >99.5% and DAC >87.4% (CAS: 148411-57-8). Formulated strictly for agricultural use as a high-performance soil conditioner.
For a personal-finance reader, the key distinction is between an announced financing round and a verified investment return: the public announcements establish the financing timeline and stated plans, but do not disclose terms that would let outside readers assess investor returns or value the company. The 2024 filing figure is reported by GeekWire; the primary SEC filing was not located among the cited sources.
Quick Recap
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- Appearance: Yellow Powder ; CAS NO.: 148411-57-8; Chemical Formula: (C6H11NO4)n
- Main Source: Refined from high-quality shrimp & crab shells; Content: ≥ 98%
- Agricultural-Grade chitosan oligosaccharides can enhance the absorption and utilization rate of nutrients and fertilizer components by plants. It can also promote the formation and growth of plant callus
- Deacetylation (DAC degree): ≥85％；pH：5-7;low molecular weight, good water solubility
- Widely used for various crops, vegetables, fruit trees, houseplants, lawns, and herbs as foliar spray, soil application, or drip irrigation fertilizer.
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