Castoldi vs Aspen: comparison 2026
We pit Castoldi against Aspen Carbon Cat with the usual script: what each builds, with which materials, in which price range and which boater each makes sense for.
Castoldi 
Aspen Comparison table
| Castoldi | Aspen | |
|---|---|---|
| Country | Italy | United States |
| Founded | 1962 | — |
| Specialty | Jet tenders (Jet Tender line) with in-house waterjet drives | Ultralight carbon-fibre tenders on a patented catamaran hull |
| Hull materials | Fibreglass | Carbon fibre |
| Tubes | Hypalon (CSM) | No inflatable tube (rigid catamaran) |
| Size range | 4.3 – 8.6 m | 3 – 4.5 m |
| Price level | €€€€€ — Premium | €€€€ — High |
| Ideal for | Yachts and superyachts wanting a robust jet tender with industrial pedigree | Those who need the lightest possible tender to hoist onto davits or a roof |
Castoldi, in short
Castoldi is a historic Italian manufacturer (Abbiategrasso, since 1962) famous for building its own waterjet drives. Its Jet Tenders are the industrial, robust alternative to Williams: highly valued on superyachts and also in professional and military versions. Maximum hull-drive integration and built to last decades.
Strengths
- Has built its own waterjet drives since the 1960s: total integration
- Robust construction also aimed at professional and military use
- No propeller: safe in swim areas with minimal draft
- Established prestige in the superyacht market
Things to consider
- Premium price
- Specialist jet maintenance
- Range starts at 4.3 m: no compact option
Aspen, in short
Aspen Carbon Cat builds carbon-fibre tenders in the USA on a patented catamaran hull. The result: extraordinarily light, stable boats with a dry ride even in chop, and no inflatable tubes to maintain. The most exotic option in this comparison, designed for those who hoist the tender and count every kilo.
Strengths
- Carbon fibre: the absolute minimum weight for davits and cabin tops
- Patented catamaran hull: exceptional stability and a dry ride
- No inflatable tubes to maintain or puncture
- Built in the USA
Things to consider
- High price due to the carbon
- No inflatable-tube cushioning when coming alongside
- Very limited distribution in Europe
Our verdict
Choose Castoldi if you fit its profile: yachts and superyachts wanting a robust jet tender with industrial pedigree. Choose Aspen if the opposite applies: those who need the lightest possible tender to hoist onto davits or a roof. And if budget rules, Aspen starts with a price advantage — though it always pays to compare specific models at equivalent specification.
Our practical tip: before deciding between these two, also get a price for an equivalent Navisoul model. With Hypalon available across the range and yard customisation, it often wins the comparison without the brand premium.
Frequently asked questions
Which is better, Castoldi or Aspen?
There's no single answer: it depends on use. Castoldi stands out for has built its own waterjet drives since the 1960s: total integration, while Aspen stands out for carbon fibre: the absolute minimum weight for davits and cabin tops. On price, Aspen is usually the more accessible of the two.
Which is cheaper, Castoldi or Aspen?
In general Aspen sits at a lower price level (high) than Castoldi (premium). The final price always depends on the specific model and configuration.
Are there alternatives to Castoldi and Aspen?
Yes. At dinguis.com we sell the Navisoul range (Caral Marine) and advise on any boat and brand on the market, as well as analysing them in our comparisons.
We help you decide
Tell us your boat, where you'll stow the tender and your budget, and we'll tell you which specific Castoldi, Aspen or Navisoul model fits best — with numbers, not fluff.
- A comparison tailored to your case
- Reply within 24 working hours
- No obligation
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