Name

Offshore Spars

Legal name

Offshore Acquisition LLC

Website

https://offshorespars.com

Company type

Private

Founded year

1976

Operating status

Operating

Headcount range

11–50 employees

Ownership category

akta.pro rank

Product category

Marine Composite Spar Manufacturing

NAICS

Boat Building (336612)

SIC

Ship & Boat Building & Repairing (3730)

akta.pro primary industry

FRP/GRP & Composite Materials (Resins, Fibers, Core Materials) (IMAJAKAC)

Keywords

• Carbon fiber masts
• Marine composite manufacturing
• Custom yacht spars
• Boat rigging services
• Carbon fiber tubing

Headquarters

HQ city

Chesterfield

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Supply Chain, Operations, Infrastructure, Technology or R&D, Marketing or Sales

Revenue model

1. Custom Carbon Fiber Masts: Design and manufacture of custom carbon fiber masts built to order for sailing yachts. Each mast is precision-crafted to match specific vessel requirements, sailplan loads, and owner expectations.
2. Custom Carbon Fiber Booms: Design and building of custom carbon fiber booms including electric furling, hydraulic furling, Park Avenue, V-Booms, and standard designs.
3. Spinnaker Poles: Custom-designed and made-to-order spinnaker poles using computer-controlled autoclave curing with hand-laid prepreg carbon fiber.
4. Rigging Packages: Standing rigging (Kevlar, carbon rod, wire), running rigging, and lifeline rigging packages. Manufacturing and assembly performed in-house.
5. Carbon Tubing Products: Round and airfoil carbon fiber tubing sold by the foot with various finish options, wall thicknesses, and diameter specifications.
6. Marine Services: Maintenance and repair services, hydraulic service and repairs (authorized for Navtec, Harken, Sailtec), painting and finishing (using Awlgrip), parts replacement, and spar stepping/unstepping services.
7. Contract Manufacturing: Contract manufacturing services for non-marine companies needing carbon fiber components. Offers single component to full-scale production capabilities.
8. Technology & Engineering Licensing: Licensing services for international companies looking to bring products to U.S. market through manufacturing partnership with Offshore Spars.

Go-to-market motion2 records

Distribution channels2 records

Marketing channels7 records

Core offering

Offshore Spars designs and manufactures custom carbon fiber composite spars and structures for sailing yachts, including masts, booms, spinnaker poles, standing and running rigging, and carbon fiber tubing. Each product is individually engineered to match a vessel's sailplan loads and owner requirements using hand layup prepreg carbon fiber and autoclave curing, complemented by in-house marine services such as painting, hydraulic service, maintenance, and contract manufacturing.

Product overview

Offshore Spars is a manufacturer of high-performance carbon fiber composite products for the marine industry, operating since 1976. The company's core product portfolio centers on carbon fiber spars: custom-designed and manufactured masts (up to 108 feet seamless, longer with splicing), booms (in Electric Furling, Hydraulic Furling, Park Avenue, V-Boom, and Standard configurations), spinnaker poles (prepreg autoclave-cured), and specialized tubing (round and airfoil carbon fiber tubes). These core products are complemented by rigging services including Standing Rigging (Kevlar, carbon rod, wire), Running Rigging, and Lifeline Rigging packages, all manufactured in-house. The company offers comprehensive support services including Autoclave Curing (with rental options), Hydraulic Service & Repair (authorized for Navtec, Harken, Sailtec), Maintenance & Repairs, Painting & Finishing (using Awlgrip), Replacement Parts sourcing, and Product Sourcing from major marine brands. Engineering capabilities include Design & Engineering with FEA analysis. Additional services include Contract Manufacturing Partner programs and Technology & Engineering Licensing for international companies. The company also operates Peninsula Composites, a subsidiary extending carbon fiber manufacturing expertise to non-marine industries. The manufacturing facility in Michigan features two paint booths (150' x 80') and two autoclaves (30' x 9' and 100' x 12' tapered).

Differentiator

Problem solved

Functional benefit

Brands

• Peninsula Composites: A Michigan-based subsidiary of Offshore Spars specializing in carbon fiber parts and advanced composite manufacturing for diverse industries, with over 35 years of expertise.

Products and services

• Carbon Fiber Masts Custom-designed and manufactured carbon fiber masts built for yachts, engineered for performance and tailored to exact vessel specifications. Each mast is crafted in-house using premium carbon fiber with advanced autoclave curing, suitable for cruising, racing, and superyacht applications.
• Carbon Fiber Booms Full range of custom carbon fiber booms including Electric Furling, Hydraulic Furling, Park Avenue, V-Boom, and Standard designs, crafted for performance, reliability, and style for cruising or racing.
• Spinnaker Poles Custom-designed spinnaker poles, whisker poles, and jockey poles made from prepreg unidirectional carbon fiber with autoclave curing, including custom poles and hardware solutions.
• Round Carbon Tubing Prepreg, autoclave-cured round carbon fiber tubes with hand layup for optimal ply orientation. Suitable for high-tension applications (forestays, backstays), compression applications (struts, poles), and bending loads (booms, spreaders).
• Airfoil Carbon Tubing Aerodynamically optimized airfoil carbon fiber tubes with a wing-shaped profile designed to minimize wind resistance, offering superior compression stiffness and tensile strength comparable to A36 steel.
• Standing Rigging Custom-designed standing rigging in Kevlar, carbon rod, or wire, manufactured in-house with precision. Includes inspection, maintenance, and repair services for existing systems.
• Running Rigging Custom-assembled cordage tailored to exact boat specifications, including halyards, sheets, control lines, and reefing systems, meticulously selected for quality and precise control.
• Lifeline Rigging

Quantifiable outcome

• Carbon fiber tubing offers up to 50% higher compression stiffness compared to comparable aluminum tubing
• +3 more outcomes

Named customers13 records

Segments4 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

22 partnerships are on record, tiered minor.

• AntalminorOthersMarine component supplier providing deck hardware and accessories. Partnered with Offshore Spars for product sourcing services to customers.
• BSIminorOthersRigging, blocks and stoppers supplier. Trusted brand partner for marine hardware sourcing through Offshore Spars.
• Euro Marine TradingminorOthersHigh-quality sailboat hardware supplier. Component sourcing partner for Offshore Spars customers.
• Future FibresminorOthersComposite rigging and cables manufacturer. Supplier of high-performance rigging components.
• HarkenminorOthersHardware, blocks, canvas and sailhandling equipment. Authorized service center relationship for Harken hydraulics.
• HaynminorOthersMarine, architectural and industrial rigging hardware supplier. Trusted component partner.
• MarlowminorOthersWorld-class synthetic fibre ropes manufacturer. Rope supplier for running rigging applications.
• Navtec HydraulicsminorOthersPioneers of hydraulic systems for sailboats. Authorized service center relationship for Navtec hydraulic service and repairs.
• New England RopesminorOthersPremium quality rope manufacturer since 1967. Supplier of rope for running rigging and lifelines.
• PlastimominorOthersInnovative marine solutions provider. Component sourcing partner.
• ReckmannminorOthersReefing systems, furlers and hydraulics manufacturer. Component supplier for sail handling systems.
• RoblineminorOthersHigh quality yachting ropes and kite lines manufacturer. Supplier for performance sailing lines.
• RonstanminorOthersSailing gear and marine hardware manufacturer. Component sourcing partner for hardware solutions.
• RopeyeminorOthersTop-quality products for rig sailing and racing boats. Supplier of performance rigging hardware.
• SailtecminorOthersHydraulic tension and rig control for sailboats. Authorized service center relationship for Sailtec hydraulic systems.
• SchaeferminorOthersManufacturer of sailboat hardware and accessories. Component supplier for marine hardware needs.
• TeufelbergerminorOthersSpecializing in fiber ropes, steel wire ropes and strapping. Supplier of high-performance rope products.
• TylaskaminorOthersHeavy duty machined parts manufacturer. Supplier of precision-engineered marine hardware.
• WichardminorOthersStainless steel hardware forged in France since 1919. Supplier of high-quality stainless steel marine hardware.
• Yale CordageminorOthersMarine rope manufacturer. Supplier of premium rope for marine applications.
• Carbo LinkminorOthersRigging component supplier mentioned in FAQ section as one of the brands used for rigging components.
• Bayview Yacht ClubminorOthersOffshore Spars proudly supports the Bayview Yacht Club Junior Sailing Program, nurturing young sailors' skills, confidence, and passion.

Scale indicators7 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Hall Spars (GMT Composites): Hall Spars is a direct competitor designing and manufacturing custom carbon fiber spars for sailing yachts, now operating under the GMT Composites group. It competes head-to-head with Offshore Spars for the same premium performance and luxury yacht customers.
• Southern Spars (GMT Composites): Southern Spars, also part of GMT Composites, builds custom carbon fiber spars and rigging for racing and superyacht applications. It is one of Offshore Spars' closest direct competitors in the high-end custom carbon spar market.
• CST Composites: CST Composites manufactures carbon fiber tubes, masts, and structural components for marine, aerospace, and industrial markets. Overlap with Offshore Spars is strong in autoclave-cured composite tubing and custom mast production.
• Axxon Composites: Axxon Composites produces custom carbon fiber spars, booms, and rigging components for performance sailing yachts. It serves the same premium racing and cruising customer base as Offshore Spars.
• Future Fibres: Future Fibres is a specialist in composite rigging and cables for superyachts and high-performance sailing vessels. It is a listed component-supply partner of Offshore Spars and a direct competitor in composite rigging.

Broad incumbents

• Selden Mast: Selden Mast is a large, established manufacturer of masts, booms, and rigging systems with broad product lines across cruising and racing segments. It competes with Offshore Spars as a broader incumbent offering aluminum and carbon solutions at scale.
• Sparcraft (Selden group): Sparcraft manufactures spars and rigging for cruising and performance yachts, now affiliated with Selden. It is a broad incumbent competitor to Offshore Spars in OEM spars and rigging.
• GMT Composites: GMT Composites is the parent group formed by combining Hall Spars, Southern Spars, and other composite marine brands. It is the largest scaled competitor to Offshore Spars in custom carbon spars and superyacht structures.

Emerging players

• Colligo Marine: Colligo Marine specializes in synthetic standing rigging (Dyneema composite) as a lighter alternative to wire rigging. It is an emerging player in the rigging segment that overlaps with Offshore Spars' rigging package offerings.
• Carbo Link: Carbo Link produces carbon fiber standing rigging components used by premium sailboat builders. It is an emerging player in the rigging space and is already referenced as a partner/brand by Offshore Spars.

Market position

Strengths5 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/OffshoreSpars
• LinkedInlinkedin.com/company/offshore-spars-co-
• Instagraminstagram.com/offshorespars

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Offshore Spars