Cousin Trestec

Rope manufacturer,
always more innovative

Located in the North of France, Cousin Trestec manufactures innovative ropes and braids.

With 170 years of experience, Cousin Trestec is a key player in the industry and leisure markets.

Innovative rope manufacturer, for high performances

Cousin Trestec is a rope manufacturer specialized in fibres transformation by spinning, cabling, braiding and coating since 1848.

Cousin Trestec is the reference on the rope market, with customers in various sectors, such as leisure and sport (yachting, climbing, caving, trekking, mountaineering, paragliding, kitesurfing...), safety (work at height, rescue, handling, events...), industrial (offshore, hoisting, automotive...) and military.

With the benefit of the expertise from the group and its sister companies (Cousin Biotech, Cousin Composites, Major Sport – Tecnifibre), Cousin Trestec offers solutions matching your needs and brings you all their know-how to manufacture quality and innovative products.
On top of our rigour and expectations for product design, we place your satisfaction in first place.

170 years of know-how and French quality

Cousin Trestec uses the best available raw materials to increase comfort, safety and performance: polyamide and high tenacity polyester, Technora®, Dyneema®, Twaron®, HMPE, Spectra®, Vectran® or the recent PBO®.

Cousin Trestec has not only an unmatched knowledge of the materials, but also the ability to combine all the technologies and to control perfectly the thermic treatments (stretch, shrinkage, stabilization, waterproofing) and coatings.

Cousin Trestec also designs your tailor-made products to your own specifications. Working with traditional know-how while mastering the high-tech fibres makes the Cousin Trestec hallmark.



Foundation of COUSIN Frères, specialising in spinning and braiding line, cotton and hemp yarns.

Late XIXth

Manufacturing of sewing threads and strings


1st rope-maker to use synthetic fibres.


1st products ranges dedicated to yachting and climbing.


Market Leader for paragliders and parachutes lines.


Market Leader for safety and access ropes.


CE marking.


COUSIN Frères creates a group with several subsidiaries for each activity - COUSIN Trestec, COUSIN Composites (rods and optic fibres) , COUSIN Biotech (medical implants), COUSIN Office (corporate general services).


Launch of the first range of lines for kitesurfing.


ISO 9001 Certification version 2000.


Dalle & Associés takes over COUSIN Trestec, COUSIN Composite and Major Sport.


Cousin Trestec develops Constrictor®, a new textile rope clutch which sets new standards in the sailing sector.


Cousin Trestec partners with "Souffle du Nord" with Thomas Ruyant and Adrien Hardy who made the 4th place in the IMOCA class at transat Jacques Vabre.

Cousin Trestec

Hot figures

working 30,000

km of ropes made each year

working 60,000

plaits necessary to the manufacture

working 170

years of experience

working 60

countries all over the world

working 80

mm diameter maximum





From 13 to 15 November 2018, the Cousin Trestec team will be glad to meet you at the Metstrade show in Amsterdam, the world’s largest trade exhibition of marine equipment, materials and systems. Our now famous Constrictor system will take place alongside our latest ropes : the Meridian and the Black Pearl. Waiting to see […]

Expoprotection 2018 : meet us at booth P30

Expoprotection 2018 : meet us at booth P30

EXPOPROTECTION 2018: FRANCE’S LEADING EXHIBITION FOR RISK PREVENTION AND MANAGEMENT Already some 550 exhibitors have booked their stands, of whom about a hundred are first-time exhibitors and 43.5% are international. Expoprotection 2018 is significantly bigger than the previous edition, promising an even more specialised and varied offer unmatched in France.

November 2018 : Meet us at TCIA 2018 / booth #386

November 2018 : Meet us at TCIA 2018 / booth #386

From 8 to 10th of November 2018, Cousin Trestec will be exhibiting at the TCIA EXPO,  the world’s largest tree care industry conference and trade show, sponsored by The Tree Care Industry Association. Meet us on our stand 386 and check out our latest LIGNUM acess rope, 100% polyester and US standard compliant.

September 2018: Meet us at ICARE Expo

September 2018: Meet us at ICARE Expo

From 20 to 23rd of September 2018, Cousin Trestec will be exhibiting at the Icare Cup (Icare Expo) in St Hilaire du Touvet – Lumbin in Isère (38). Meet us on our stand F11-13-15 and check out our the paragliding lines range. Icare Expo show is the unmissable event for air sports. Covering almost 6000m² […]