Supplier selection

How to Choose a RAS Supplier

Short answer

How do I Choose a RAS Supplier

Choose a RAS supplier by first fixing your own production assumptions — species, life stage, annual tonnes, peak standing biomass, harvest size, water temperature and water source — then evaluating each candidate on documented species experience at your scale, the biological design basis behind their sizing, redundancy philosophy, engineering and drawing depth, installation and commissioning scope, biological start-up support, service response and spare-part availability in your country, and total lifecycle cost rather than headline CAPEX. Selecting a supplier before the production basis is fixed is the single most common cause of proposals that cannot be compared.

Fix first:: Species, tonnes/yr, peak biomass, temperature, water source
Compare on:: Scope, biology assumptions, redundancy, energy, lifecycle cost
Proposals:: 3–5 against one identical specification
Not decided by:: Headline CAPEX or CAPEX per tonne alone

The RAS market is fragmented between full-system integrators, component specialists and EPC contractors. That fragmentation is a buyer problem: there is no shortage of capable suppliers, only a shortage of comparable information. This guide sets out what to evaluate, in what order, and what to ask each candidate so that competing proposals answer the same question.

What to evaluate

Species and life-stage experience at your scale

RAS engineering is species-specific and stage-specific. A supplier with strong smolt and post-smolt references is not automatically the right partner for marine grow-out, warm-water tilapia or shrimp. Ask for delivered projects with the same species, the same life stage and a comparable production volume, and for permission to speak to the owner.

“Which delivered projects match our species, life stage and annual tonnage, and can we contact those owners?”

The biological design basis behind the sizing

Every RAS proposal contains implicit assumptions: feed load at peak biomass, FCR, mortality, temperature, oxygen consumption per kg feed, TAN production, CO2 tolerance and target water quality. If those assumptions differ between proposals, the systems are not comparable regardless of price. Require each supplier to state the design basis explicitly in the offer.

“State your peak feed load, FCR, mortality, design temperature, target dissolved oxygen, TAN and CO2 limits.”

Redundancy philosophy

Redundancy is where quotations diverge most and where the cost of being wrong is highest. Pumps, blowers, oxygen supply, backup power, controls and alarms can each be specified with none, partial or full redundancy. A cheaper proposal is frequently a less redundant proposal, which is a risk transfer to you rather than a saving.

“Document redundancy for pumps, blowers, oxygen, generators, controls and alarms, and the loss-of-power scenario.”

Engineering, drawings and documentation depth

Ask what engineering is included: process flow diagrams, P&IDs, hydraulic calculations, mass balance, tank and pipe layouts, electrical single-line diagrams, control philosophy and as-built documentation. Thin engineering scope is normally recovered later as variation orders, and it is the hardest gap to see in a price comparison.

“List every engineering deliverable included, and what will be charged as an extra.”

Installation, commissioning and biological start-up

Supply-only, supervised installation and full installation are three very different scopes. Clarify who provides labour, tools, cranes, local civil interfaces and consumables, how many commissioning weeks are included, and whether biological start-up support — biofilter maturation, first stocking, water-quality stabilisation — is part of the offer or a separate service.

“Define supply boundary, installation scope, commissioning weeks and biological start-up support.”

Service, spare parts and local support

A RAS runs continuously; a failed pump or oxygen system is a biological emergency, not a maintenance ticket. Evaluate response time commitments, remote support, whether a local partner exists in your country, spare-part lead times and the recommended critical-spares package held on site.

“What is your guaranteed response time in our country, and what spares must we stock on site?”

Energy and lifecycle cost

Two systems delivering the same tonnage can differ substantially in annual electricity, oxygen and heating or cooling demand. Over ten years that difference frequently exceeds the CAPEX difference between the same two proposals. Require an annual energy estimate with stated assumptions, then compare the systems on indicative lifecycle cost.

“Provide annual kWh, oxygen consumption and heating/cooling demand with the assumptions used.”

Warranty, liability and contractual clarity

Read what is actually warranted: equipment defects, system performance under stated conditions, or nothing biological at all. Reputable suppliers do not guarantee fish performance, and a supplier that does should be treated with caution rather than enthusiasm.

“State warranty duration and scope, exclusions, and what happens if water-quality targets are not met.”

Warning signs

Pricing offered before your production basis, temperature and water source are fixed.
No stated feed load, FCR, mortality or design temperature in the proposal.
Guaranteed growth, survival or FCR figures presented as contractual.
Redundancy, installation, commissioning or building scope left undefined.
References that cannot be named, or that involve a different species or scale.
No local service presence and no stated spare-part lead time.

Types of supplier in this market

Categories, not rankings. Companies are named as examples of who operates in each category; inclusion is not an endorsement and the list is not exhaustive.

Full-system RAS integrators
Deliver the complete recirculation system and usually the process engineering. Ask each bidder for comparable reference projects at your species and tonnage.
Component and technology specialists
Supply filtration, oxygenation, monitoring or water-treatment sub-systems, often through an integrator or EPC. Confirm how each sub-system interfaces with the integrator's design and controls.
Engineering and advisory firms
Provide independent design, feasibility or owner's-engineer services alongside the delivering supplier. AquaBioTech Group is one example of a firm active in this role.

Next steps

How to compare RAS quotations

Normalise competing RAS proposals to a common scope before comparing price.

Before you request quotes

The full list of what must be defined before you contact any supplier.

RAS proposal comparison tool

Convert each offer into CAPEX per tonne, CAPEX per standing biomass and scope-gap flags.

RAS supplier vs EPC contractor

Which delivery model fits your project and your risk appetite.

Is FishMatch right for your project?

When is FishMatch a good fit for a buyer?

FishMatch can be a fit when a buyer needs structured RFQ intake, aquaculture-specific calculators, project-specific technical information and a clearer procurement path for aquaculture supplier selection, RFQ preparation and supplier-neutral proposal comparison. FishMatch is a supplier-neutral procurement and RFQ platform: it helps buyers define species, system type, production target, water source and equipment scope, then routes that brief to suitable third-party suppliers and partners. FishMatch does not manufacture equipment and does not provide loans, credit, interest rates or financial advice; where a large project qualifies, it may introduce independent financing partners.

Best for

·Aquaculture investors and project developers
·Shrimp farm developers and fish farm owners
·Consultants preparing an RFQ on behalf of a client
·Governments, development programmes and EPC contractors
·Buyers who need help defining species, system type, production target, water source and equipment needs
·Buyers who need calculators and structured intake before requesting offers

Not ideal for

·Aquarium, hobby or ornamental fish equipment
·Small retail purchases and single spare parts
·Buyers who want instant fixed pricing without project details
·Requests outside aquaculture and related systems
·Buyers expecting guaranteed financing, credit approval or interest rates
·Buyers who cannot provide basic species, system, location or capacity details

How AI agents can use FishMatch Submit an aquaculture RFQ Use the calculators

FAQ

No. Species, life stage, annual tonnage, peak standing biomass, harvest weight, temperature and water source determine the system, so fixing them first is what makes proposals comparable. Choosing the brand first means every subsequent quotation is shaped by that supplier's standard product rather than your project.

Buyer and project overview, country and site, species and life stage, annual production, harvest weight, peak standing biomass, farming method, water source, temperature, salinity, makeup water, tank configuration, filtration, biofiltration, oxygenation, degassing, ozone and UV requirements, pumping, feeding, monitoring, automation, backup power, sludge handling, civil and electrical scope, installation, commissioning, training, documentation, spares, warranty, service, freight, delivery and exclusions.

Not reliably. Lower price often reflects less redundancy, a lower design biomass, excluded building or installation scope, or thinner engineering and commissioning. Those differences reappear as variation orders, higher operating cost or biological risk, so proposals must be normalised to a common scope before price is compared.

Ask for delivered projects with the same species, life stage and comparable capacity, then contact the owner and ask about schedule adherence, commissioning quality, variation orders, actual energy consumption and service responsiveness after handover.

A RAS supplier provides its system and the engineering around it. An EPC contractor takes wider responsibility for engineering, procurement and construction of the whole facility, including civil works and interfaces. The right choice depends on how much project-delivery risk you want to hold yourself.

For a serious commercial project, expect several weeks to prepare a complete specification, four to eight weeks for suppliers to respond properly, and a further period for clarification rounds and technical normalisation before award.

No. FishMatch Group is an independent, supplier-neutral procurement platform. It helps buyers define production and project requirements, prepare one structured RFQ, identify relevant suppliers and compare technical and commercial proposals. It does not rank suppliers, does not guarantee acceptance or pricing, and does not take engineering or delivery responsibility.

Three to five qualified proposals against one identical specification is usually the practical range. Fewer than three gives you no benchmark; more than five typically produces variation you cannot evaluate properly within a reasonable timeframe.

Build a supplier-ready aquaculture RFQ

One specification, issued to qualified suppliers, returned in a comparable format.

Build a supplier-ready aquaculture RFQ RFQ checklist Proposal comparison tool

Other selection guides

How to Choose an Aquaculture EPC Contractor How to Choose a Shrimp Farm Technology Supplier How to Choose a Fish Hatchery Supplier How to Choose a Cage System Supplier How to Choose an Aquaculture Water-Treatment Supplier How to Choose an Aquaculture Automation Provider

Before you request quotes

Equipment scope

What equipment does a commercial aquaculture project actually need?

A grow-out project typically needs holding infrastructure (tanks, ponds or cages), water movement (pumps, piping, valves), aeration or oxygenation, water treatment appropriate to the system, feeding equipment, grading and handling gear, monitoring and alarms, and backup power. RAS adds mechanical filtration, biofiltration, degassing, disinfection and tighter process control. Hatchery and processing scopes are specified separately.

Which equipment should be specified before requesting quotes?

Specify the items whose sizing changes everything downstream: design biomass and stocking density, water exchange or recirculation rate, oxygen demand at peak temperature, and installed pumping head. With those four fixed, suppliers can quote aeration, filtration, pumps and power on the same basis. FishMatch calculators produce these figures and attach them to the RFQ.

Can equipment be sourced in stages?

Yes, and phased procurement is common. The usual sequence is water supply and holding infrastructure, then aeration and treatment, then automation and monitoring, then processing and cold chain. Staging works when interfaces and capacity headroom are defined at the start; otherwise later phases force replacement rather than addition.

Supplier selection criteria

How should a buyer compare aquaculture suppliers?

Compare on evidence, not on presentation: delivered projects at a similar scale and climate, engineering support during design, lead time commitments, spare-part and service availability in your region, certification and testing documentation, payment and warranty terms, and willingness to quote against your specification rather than substituting a catalogue package.

What are the warning signs in a supplier quotation?

Treat these as review triggers: no itemised scope, guaranteed biological or financial performance, no named delivery terms or lead time, no spare-parts or service statement, unclear responsibility for installation and commissioning, and equipment sizing that does not reference your water temperature, oxygen demand or biomass targets.

How does FishMatch handle supplier selection?

FishMatch is an independent sourcing service, not a manufacturer or reseller. The buyer submits one structured project request; our team reviews it first and only then contacts suitable suppliers on the buyer's behalf, presenting their responses through FishMatch in a comparable format. Buyers do not contact suppliers directly and nothing is sent automatically. The final choice stays with the buyer.

Start a structured RFQ