Finfish Farming and Fish Hatcheries (U.S.) — NAICS 112511

An investor's primer. Figures are reported facts with citations; statements about the future are framed as judgments, not forecasts.

1. Overview

NAICS 112511 covers businesses that raise finfish on farms (catfish, trout, tilapia, hybrid striped bass, salmon, baitfish, goldfish, and ornamental/tropical fish) and businesses that hatch fish of any kind [1]. In plain terms it is fish agriculture: growing fish in ponds, tanks, raceways, or cages until they are big enough to sell for food, bait, stocking, or the aquarium trade — plus the hatcheries that supply eggs, fry, and fingerlings. NAICS is the North American Industry Classification System, the federal scheme for tabulating industries [1].

Why it matters beyond any one investor: the United States imports roughly 80% of the seafood it eats, a large share of it from foreign fish farms, and ran a $20.3 billion seafood trade deficit in 2023 [2][3]. Domestic aquaculture is the obvious way to narrow that gap, and every few years a new wave of capital chases the idea. The reality is sobering: U.S. finfish farming is a small, low-margin, weather- and disease-exposed agricultural business dominated by private operators, layered on top of a large network of government hatcheries, with a long graveyard of over-promised land-based startups.

The central question for anyone putting money to work here is not simply "will people eat more fish?" It is whether an operator can produce healthy fish consistently, at a competitive cost, while securing water, permits, power, financing, and distribution.

2. What it is and how it's structured

In scope (112511): farm-raising of finfish, plus fish hatcheries. Illustrative activities: catfish, trout, tilapia, hybrid striped bass, and salmon farming; baitfish/minnow production; goldfish and tropical/ornamental fish; and finfish hatcheries producing eggs, fry, fingerlings, broodstock, and juveniles [1]. Production happens in ponds, land-based tanks and raceways, ocean net pens, and recirculating aquaculture systems (RAS) — closed, indoor tank systems that filter and reuse water.

What it explicitly excludes — name the neighbors:

• Catching wild finfish from natural habitats → NAICS 114111 (Finfish Fishing) [1]. Farming is the opposite of the wild fishery.
• Shellfish farming (oysters, clams, mussels, farmed shrimp) → NAICS 112512 (Shellfish Farming) [1].
• Other aquaculture (alligators, frogs, algae/seaweed, etc.) → NAICS 112519 (Other Aquaculture) [1].
• Seafood processing (filleting, freezing, packing) → generally NAICS 311710 (Seafood Product Preparation and Packaging) [1].

112511 sits inside industry group 11251 (Aquaculture), inside Sector 11 (Agriculture, Forestry, Fishing and Hunting) [1]. That placement matters for the data (Section 3).

Ownership mix. The commercial side is overwhelmingly private, family-owned farms — Deep South catfish operations, Western trout raceways, scattered tilapia and ornamental growers, and vertically integrated salmon and trout groups. Layered on top is a large non-commercial, government-run segment: federal, state, and tribal fish hatcheries that raise fish to stock rivers and lakes for conservation and recreation rather than to sell them. The U.S. Fish and Wildlife Service (FWS) alone runs 71 national fish hatcheries and stocks well over 100 million fish a year [7]. State and tribal agencies run many more. These hatcheries are part of the industry's activity but record little or no "sales," so they barely register in commercial statistics.

3. How big it is

A data warning first. The Census Bureau business programs that anchor most industry primers — the Economic Census, County Business Patterns (CBP), the Statistics of U.S. Businesses (SUSB), and Nonemployer Statistics — exclude Sector 11 (agriculture/aquaculture). So for NAICS 112511 there is no standard federal establishment, employment, or payroll count from those sources. Our ingested federal ground-truth file contains only the SBA size standard (below); it holds no Census sales, firm-count, or employment figure for this code, because those series do not cover farming. The authoritative numbers come instead from the U.S. Department of Agriculture's (USDA) Census of Aquaculture [4].

The USDA picture (2023 Census of Aquaculture, released December 2024):

• Total U.S. aquaculture sales: $1.908 billion, up 26% from 2018, across 3,453 farms with sales (up 18%; 4,052 farms sold or distributed product), averaging roughly $552,000 per selling farm [4].
• Food fish — the finfish core most aligned with 112511 (catfish, trout, tilapia, bass, salmon, etc.): $819.6 million, or 43% of all aquaculture sales, up 14% from 2018 [4]. (The other big slices — mollusks and crustaceans — fall under the neighboring shellfish/other-aquaculture codes, so total aquaculture sales are not a 112511 revenue figure.)
• Catfish is the anchor: $480 million in 2023, about 59% of food-fish sales, with Mississippi far in the lead [4].
• Trout: $134.1 million (about 16% of food-fish sales) across 335 farms; Idaho led with $41.45 million from just 21 farms (its Snake River aquifer), then Washington [5]. Separately, about 380 farms distributed 134.7 million trout (33 million pounds) for conservation, recreation, and restoration — a good illustration of how much "output" never shows up as commercial sales [4].
• Tilapia: $51.2 million across 147 farms; food-size fish averaged about $3.19 per pound [6].

The undercount, plainly. Three forces make the "official" business footprint look smaller than the real activity: (1) standard Census business data skip agriculture entirely, so the industry is invisible in the usual establishment/employment tables [4]; (2) a large slice of production is government and tribal hatcheries that stock fish rather than sell them — real fish, real budgets, near-zero recorded "sales" [7]; and (3) state-level census cells are sometimes withheld for confidentiality (no suppressed value is reproduced here) [4]. The SBA (Small Business Administration) size standard is $3.75 million in average annual receipts [8] — a government-contracting eligibility line, not a revenue estimate — and essentially the entire industry falls under it. This is a small-business, small-farm sector.

4. The investable universe

There is no large, diversified, U.S.-listed pure-play that cleanly represents this industry. Public exposure is thin and mostly foreign; the substantive U.S. players are private. (Tickers, prices, and multiples appear only in this section and Section 10.)

U.S.-linked public names (small, distressed, or development-stage):

Foreign salmon majors — the deepest, most liquid way to own farmed-finfish economics (but they are large-cap, sea-cage, non-U.S. businesses exposed to salmon-price cycles, sea lice, and currency) [13]:

OTC = U.S. over-the-counter market; ADR-style tickers offer thinner, dollar-denominated access to the Oslo listings [13].

Major private / non-listed U.S. operators:

• Cooke Inc. (New Brunswick, Canada) — family-owned, vertically integrated seafood company; U.S. footprint includes Atlantic salmon net-pen farming, hatcheries, processing, and distribution in Maine and Washington [14].
• Riverence Holdings (Idaho/Washington) — the largest land-based trout producer in the Americas; its acquisition of Clear Springs Foods built an egg-to-plate trout platform (Riverence Brood, Riverence Farms) [15].
• Pacific Seafood — family-owned; operates Washington hatcheries and a Columbia River steelhead farm alongside processing and distribution [16].
• Hendrix Genetics / Troutlodge — private, partly private-equity-backed genetics businesses supplying trout eggs, live fish, and breeding technology [17].
• Heartland Catfish and Consolidated Catfish Producers (Delta Pride / Country Select) — vertically integrated Mississippi catfish operations with partner farmers and processing capacity [18].
• Land-based salmon build-outs in permitting/construction: Superior Fresh (Wisconsin salmon-plus-greens aquaponics, second RAS farm in Indiana), Pure Salmon (Virginia, ~$228M, up to 20,000 MT), AquaCon (Maryland), Whole Oceans (Bucksport, Maine — acquired its site), and Nordic Aquafarms (advancing a California/Humboldt RAS after scrapping its Belfast, Maine project in January 2025). These are development-stage bets, not established producers [19].
• Plus hundreds of small catfish, tilapia, baitfish, and ornamental-fish farms, mostly in the South and West.

5. How the money works

Finfish farming is a commodity-agriculture business: owners earn a spread between the price a pound (or kilogram) of fish fetches and the cost to grow it. A hatchery is a different animal — its value rests on genetics, disease-free status, stocking contracts, and (for public hatcheries) government budgets rather than food-fish pricing. The metrics that actually drive returns:

• Feed conversion ratio (FCR) — pounds of feed per pound of fish gained. Feed is the single biggest cost, so a lower FCR is the core efficiency lever.
• Feed cost. Catfish feed (28%-protein floating pellet) ran over $400/ton in 2024, down from ~$550/ton peaks in early 2023 but still roughly double the ~$227/ton of 2002; intensive ponds apply 10–20 tons of feed per acre per year, so small feed-price moves swing profits hard. Feed prices track soybean-meal and corn [9].
• Stocking density and yield per acre (ponds) or per cubic meter of tank (RAS).
• Survival / mortality. A single disease outbreak, low-oxygen event, or predator (fish-eating birds) can wipe a year's margin.
• Realized price — the farm-gate price per pound, plus processing yield, cold-chain efficiency, and freight. Catfish live prices and processor demand set the ceiling; imports set the competition [9].
• Capacity utilization and capital costs — permits, leases, insurance, maintenance, and debt service.

A worked example of the squeeze. In 2023–24, low live-catfish prices met high feed, labor, fuel, and fingerling costs, leaving many catfish farms with production costs close to market price before any loss event [9]. On top of that, "off-flavor" — a muddy taste from pond algae that forces farmers to hold fish (and keep feeding them) until it clears — cost the catfish industry an estimated $40 million directly, ~$74 million in total economic impact, in 2022 [26]. U.S. farmed-catfish sales then fell about 21% to ~$358 million in 2024 [9].

Land-based RAS is a different economic bet. Recirculating systems trade cheap pond water and sunlight for high capital cost and high energy use to grow premium fish (usually salmon) near cities year-round. Returns hinge on capex per ton of capacity, biological reliability, and a price premium — and the sector's record is brutal: repeated mass-mortality events, cost overruns, dilutive financings, and abandoned projects [10][11][19]. It is a build-it-and-hope model, not yet a steady cash producer.

6. What drives demand

• Seafood consumption and the import gap. Americans ate about 19.1 pounds of seafood per person in 2023; NOAA (National Oceanic and Atmospheric Administration) estimates roughly 80% of seafood consumed is imported, and the U.S. imported ~6.3 billion pounds of edible seafood while exporting ~2.5 billion [2]. Any durable shift toward domestic, traceable, "grown-in-USA" fish is a tailwind.
• Substitution and price vs. imports. Farmed catfish competes directly with cheaper imported pangasius/basa from Vietnam; imports were ~68% of U.S. catfish supply in 2023 [20]. Tariffs, anti-dumping actions, and import-inventory swings move domestic prices a lot.
• Recreational fishing and stocking demand for trout, baitfish, and hatchery fish — much of it funded by state agencies, tribes, and license fees rather than grocery buying [7].
• The aquarium / ornamental trade for goldfish and tropical fish — a small but steady niche.
• Global aquaculture growth. In 2022, aquaculture surpassed capture fisheries as the world's leading source of aquatic animals — a structural shift toward farmed protein [21].
• "Local, sustainable, antibiotic-free" branding, which underpins the premium-priced land-based salmon thesis [11].

The key caveat: U.S. demand growth does not guarantee domestic-farm profitability. Imported fish can stay cheaper, and new domestic capacity often needs heavy capital before it reaches dependable production.

7. Regulation

Finfish farming answers to an unusually crowded set of agencies — a real friction cost, especially for new projects. A permit here is not just paperwork; it can determine whether a project has usable land, water, discharge rights, and financing value.

• EPA (Environmental Protection Agency) — aquaculture discharges need NPDES (National Pollutant Discharge Elimination System) permits. Concentrated Aquatic Animal Production (CAAP) facilities — flow-through, recirculating, or net-pen operations producing at least 100,000 pounds a year — fall under federal effluent guidelines (40 CFR Part 451); smaller farms may still need discharge permits [22].
• FDA (Food and Drug Administration) — regulates aquaculture drugs, feed, and seafood safety; processors generally must follow the Seafood HACCP (Hazard Analysis and Critical Control Point) framework. FDA approved AquaBounty's GE salmon in 2015, but an import restriction on the engineered eggs long complicated U.S. production [23].
• USDA FSIS (Food Safety and Inspection Service) — uniquely inspects catfish and other Siluriformes (unlike other seafood, which FDA handles), raising the bar for both domestic farms and importers [23].
• NOAA Fisheries — leads siting, permitting, and environmental review for marine and offshore aquaculture [24].
• FWS (U.S. Fish and Wildlife Service) — runs the national hatchery system and enforces invasive-species and live-fish-movement rules (including salmonid import steps) on interstate and international fish transport [7].
• U.S. Army Corps of Engineers — permits structures in navigable waters (net pens).
• State agencies add farm licensing, water rights, marine leases, biosecurity, and fish-movement rules on top — e.g., Maine requires permits to import or transfer marine organisms into land-based facilities [22].

There is no single, streamlined federal permit for a fish farm; the fragmentation is itself a barrier to entry — and a quiet moat for incumbents.

8. Competitive dynamics and consolidation

• Geographically concentrated by species. Catfish is a Mississippi-Delta cluster (Mississippi, Alabama, Arkansas, Texas ≈ 96% of production; ~53,500 water acres at the start of 2024); trout centers on Idaho's Snake River aquifer (Idaho alone ~$41M of the $134M national total) [9][5]. Local scale economies and specialized supply chains keep production clustered.
• Integration is the edge. Vertically integrated operators (Cooke, the Norwegian salmon majors, Riverence in trout) coordinate genetics, hatchery, feed, grow-out, processing, and cold storage — improving traceability and cutting dependence on outside suppliers [14][15].
• Consolidation is slow, mostly private, and sometimes contested. In 2025, Maine settled an antitrust case over Cooke's proposed acquisition of salmon-farm lease sites, requiring Cooke to surrender four sites and divest interests in two others; the state cited concentration, disease, competition, and environmental controversy [25]. Catfish, meanwhile, has shed marginal acreage for years as costs squeeze small farms [9].
• Import competition is the dominant force. Domestic farmers are largely price-takers against foreign aquaculture with lower labor and feed costs; trade policy swings prices more than any single competitor [20].
• The land-based-salmon race is a capital contest — whoever builds a reliable, low-cost RAS at scale first wins, and so far attrition (canceled Maine projects, mortality events, dilutive raises) has outrun success [10][11][19].

The likely pattern is selective consolidation: proven operators and well-sited assets grow more valuable, while speculative projects without financing, permits, or biological proof stay vulnerable.

9. Risks

• Biological risk. Disease, low-oxygen kills, off-flavor, and predators cause sudden, often uninsurable losses [26].
• Input-cost / margin risk. Feed (soy, corn), electricity, oxygen, labor, and freight can compress or erase margins fast [9].
• Import and trade risk. Cheap imports cap prices; policy shifts cut both ways [20].
• Capital and execution risk (RAS). Land-based projects have a track record of overruns, dilutive raises, mass mortalities, and outright cancellations — the defining risk for the public-market names [10][11][19].
• Regulatory, permitting, and environmental risk. Multi-agency permitting, discharge limits, escapes, and local opposition can delay or kill projects and create legal/reputational liability [22][24][25].
• Hatchery / policy risk. Conservation and stocking demand rides on public budgets, species priorities, and environmental rules [7].
• Climate/weather. Drought, heat, and cold snaps hit open ponds directly.
• Public-market and data-opacity risk. The listed universe is illiquid, dilutive, or development-stage rather than stable operating companies [10][12]; and because federal business statistics skip this sector, investors lean on periodic USDA censuses — less timely than the monthly data other sectors enjoy.

10. How to invest, and the outlook

Public-market routes.

• Foreign salmon majors (Mowi, SalMar, Bakkafrost, Grieg), via Oslo listings or U.S. OTC tickers, are the most liquid, profitable way to own farmed-finfish economics — but they are large-cap, sea-cage, non-U.S. businesses subject to salmon-price cycles, sea lice, and currency [13].
• U.S.-linked land-based names (AquaBounty, Atlantic Sapphire, The Kingfish Company) are small, speculative special situations — restructuring, liquidity, and going-concern analysis, not stable operating comparables. Treat them as venture-style, not income, and do not apply mature packaged-food valuation multiples to farms that have not demonstrated stable harvests and cash generation [10][11][12].
• There is no major U.S.-listed catfish or trout pure-play; broad agribusiness and packaged-food names give only glancing exposure.

Private routes. This is fundamentally a private-capital industry — direct ownership of or lending to catfish/trout operators, minority stakes in RAS ventures (Riverence, Superior Fresh, Pure Salmon, Whole Oceans), and the "picks-and-shovels" layer: fish feed, RAS equipment, hatchery genetics (Hendrix/Troutlodge), water-treatment systems, and processing/cold-chain. These arms-suppliers and integrated platforms often carry better risk-adjusted returns than the farms themselves. Due diligence should center on survival, FCR, cost per kilogram, realized pricing, harvest consistency, customer concentration, maintenance capex, debt service, permit status, and contingency funding.

Near-term drivers to watch (analytical judgments, not guarantees): feed-grain prices and the catfish live-price/import balance; whether any U.S. land-based salmon farm finally reaches steady, profitable output; trade actions on imported catfish and shrimp; and federal interest in reshoring seafood to shrink the ~$20 billion deficit [2][3][9][20]. The structural case — a huge import gap and rising demand for local, traceable protein — is genuine; the operational reality — thin margins, biological fragility, and a long record of failed build-outs — is why capital has repeatedly been humbled here. Expect growth through regional and premium niches (catfish, trout, stocking fish, and selected land-based species) rather than a rapid replacement of imports. The most investable businesses are likely to be vertically integrated, operationally proven, and conservatively financed. It is an industry with a compelling story and a punishing scorecard.

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Sources

1. U.S. Census Bureau, "2022 NAICS Definitions — 112511 Finfish Farming and Fish Hatcheries" (and adjacent codes 112512, 112519, 114111, 311710), 2022. https://www.census.gov/naics/?details=112511&year=2022
2. NOAA Fisheries, "U.S. Aquaculture" and "Fisheries of the United States" (per-capita consumption ~19.1 lb, ~80% import reliance, import/export volumes), 2024–2026. https://www.fisheries.noaa.gov/national/aquaculture/us-aquaculture
3. USDA Economic Research Service, "U.S. seafood imports exceeded exports by $20.3 billion in 2023," 2024. https://www.ers.usda.gov/data-products/charts-of-note/chart-detail?chartId=108472
4. USDA National Agricultural Statistics Service (NASS), "Results from the 2023 Census of Aquaculture" (news release Dec. 16, 2024, and highlights), 2024. https://www.nass.usda.gov/Newsroom/2024/12-16-2024.php
5. Agricultural Marketing Resource Center (AgMRC), "Trout" (2023 Census of Aquaculture data), 2024. https://www.agmrc.org/commodities-products/aquaculture/aquaculture-fin-fish-species/trout
6. Agricultural Marketing Resource Center (AgMRC), "Tilapia" (2023 Census of Aquaculture data), 2024. https://www.agmrc.org/commodities-products/aquaculture/aquaculture-fin-fish-species/tilapia
7. U.S. Fish & Wildlife Service, "National Fish Hatchery System" (71 national hatcheries; stocking; live-fish/salmonid import rules), 2024–2026. https://www.fws.gov/program/national-fish-hatchery-system/about-us
8. U.S. Small Business Administration, "Table of Small Business Size Standards Matched to NAICS Codes" (NAICS 112511 = $3.75M average annual receipts), 2023. https://www.sba.gov/federal-contracting/contracting-guide/size-standards
9. American Farm Bureau Federation, "America's Top Farm-Raised Fish Faces Growing Pressures," 2025, and Alabama Cooperative Extension System, "2023 US Farm-Raised Catfish Industry Update," 2024 (feed costs, live prices, ~53,500 water acres, ~21% sales decline to ~$358M in 2024). https://www.fb.org/market-intel; https://www.aces.edu/blog/topics/aquaculture/us-farm-raised-catfish-industry-update/
10. AquaBounty Technologies, Form 10-K and SEC filings (exit of fish-rearing operations; Indiana/Canada farm sales; Ohio assets; going-concern language), 2025–2026. https://investors.aquabounty.com/
11. SeafoodSource, "Atlantic Sapphire gets reapproval of USD 250 million bond, calls H1 2025 results sign of 'decisive turnaround,'" 2025 (~9,500 MT capacity; ~$36M H1 2025 net loss; RAS track record). https://www.seafoodsource.com/news/business-finance/atlantic-sapphire-gets-reapproval-of-usd-250-million-bond-calls-h1-2025-results-sign-of-decisive-turnaround
12. The Kingfish Company, "Trading and Financing Update Q4 2025" (discontinued U.S. commercial fresh-fish activity end of Q3 2025; Kingfish Maine permits), 2026, and Maine DEP "Kingfish Maine, Jonesport." https://thekingfishcompany.com/; https://www.maine.gov/dep/projects/kingfish/index.html
13. The Motley Fool, "Best Seafood Stocks and How to Invest in Them" (foreign salmon majors, tickers, revenue scale), 2026. https://www.fool.com/investing/stock-market/market-sectors/consumer-staples/food-stocks/seafood-stocks/
14. Cooke Inc. / Cooke Aquaculture (vertically integrated salmon in Maine and Washington), 2026. https://cookeseafood.com/divisions/cooke-aquaculture/
15. Riverence Holdings, "Riverence Holdings Acquires Clear Springs Foods" (egg-to-plate trout platform, Idaho/Washington), 2020. https://www.prnewswire.com/news-releases/riverence-holdings-acquires-clear-springs-foods-300997287.html
16. Pacific Seafood, "Steelhead" (Washington hatcheries; Columbia River steelhead farm), 2026. https://www.pacificseafood.com/species/steelhead/
17. Hendrix Genetics / Troutlodge (private trout genetics and breeding), 2026. https://www.troutlodge.com/en/
18. Heartland Catfish Company, "About Heartland," and Consolidated Catfish Producers, "About Delta Pride" (Mississippi catfish, Country Select / Delta Pride brands), 2023–2026. https://www.heartlandcatfish.com/about-heartland/; https://deltapride.com/about/
19. SeafoodSource and Undercurrent News, "Pure Salmon, Nordic Aquafarms moving forward with US land-based salmon farms," "Nordic Aquafarms scraps embattled RAS salmon farm project in Maine," "Whole Oceans' quick progress," and "Superior Fresh plans to harvest first salmon at Indiana RAS farm," 2025–2026. https://www.seafoodsource.com/news/aquaculture/pure-salmon-nordic-aquafarms-moving-forward-with-us-land-based-salmon-farms
20. Alabama Cooperative Extension System, "2023 US Farm-Raised Catfish Industry Update" (imports ≈ 68% of U.S. catfish supply; state production shares), 2024. https://www.aces.edu/blog/topics/aquaculture/us-farm-raised-catfish-industry-update/
21. Food and Agriculture Organization of the United Nations (FAO), "Global Fisheries and Aquaculture Production Reaches a New Record High" (aquaculture surpasses capture fisheries in 2022), 2024. https://www.fao.org/newsroom/detail/fao-report-global-fisheries-and-aquaculture-production-reaches-a-new-record-high/
22. U.S. Environmental Protection Agency, "Aquaculture" (NPDES) and "Concentrated Aquatic Animal Production Effluent Guidelines" (40 CFR Part 451; 100,000-lb threshold); plus Maine DMR biosecurity/import permits, 2024–2026. https://www.epa.gov/npdes/aquaculture; https://www.epa.gov/eg/concentrated-aquatic-animal-production-effluent-guidelines
23. U.S. Food and Drug Administration, "Aquacultured Seafood" (Seafood HACCP; GE salmon), with USDA FSIS Siluriformes (catfish) inspection, per Food Safety Magazine, "Meeting Regulations for U.S. Farm-Raised Fish and Seafood," 2023–2025. https://www.fda.gov/food/seafood-guidance-documents-regulatory-information/aquacultured-seafood
24. NOAA Fisheries, "Regulating Aquaculture" (marine/offshore siting and environmental review), 2024. https://www.fisheries.noaa.gov/national/aquaculture/regulating-aquaculture
25. Maine Office of the Attorney General, "State Settles Salmon Aquaculture Antitrust Suit" (Cooke lease-site divestitures), 2025. https://www.maine.gov/ag/news-and-library/press-releases
26. Cheatham et al., "Cost and impact of off-flavor on U.S. catfish farms," North American Journal of Aquaculture (Wiley), 2024 (~$40M direct / ~$74M total impact, 2022). https://onlinelibrary.wiley.com/doi/10.1002/naaq.10342