Below are leading, certified stretch‑film suppliers you should consider for international shipping and logistics — especially if you (in Germany) need reliable supply, documented quality, and sustainability/compliance evidence. For each I note why they stand out and the key certifications or claims to verify when you contact them.

Top certified suppliers (recommended)

• Trioworld (formerly Trioplast) — strong European footprint, broad product range (machine/hand/pre‑stretch/hood), large recycling programmes and RecyClass / PCR product lines; active on EU food‑contact and recyclability initiatives (good for exports from / into EU). Good choice for Germany/Europe. (triosilo.com)

• Sigma Plastics / Sigma Stretch Film (Sigma Stretch Film of Europe) — multi‑site manufacturer with ISO 9001 / ISO 14001 / ISO 45001, ISCC‑PLUS and RecyClass certified product lines and PCR offering; supplier capable of tailored machine/hand films and sustainability documentation. Useful when you need certified PCR content or documented management systems. (sigmastretchfilm.eu)

• Intertape Polymer Group (IPG) — large global supplier of blown and cast machine/hand films; ISO‑certified manufacturing sites and established industrial grades (IPG is widely used for heavy/industrial cargo). Good for high‑performance, heavy‑load logistics. (packaging-labelling.com)

• Berry Global (and major global packaging groups) — global scale, wide product range for logistics and food‑grade films; often able to supply global MRO/logistics programmes and documentation needed for cross‑border shipments. (Check the local Berry / regional site for exact film grades and certifications required for your lanes.) (pmarketresearch.com)

• Trioworld / Malpack / other regional brands (European specialists) — Trioworld (and brands it owns/partners with) publish APR/ERDE/Blue Angel and other recyclability / collection‑scheme certifications; strong option for Germany with local service, recycling schemes and compliance support (ERDE/Blue Angel). (midlandco.com)

Other notable global producers to consider

• Thong Guan (TG Group), Scientex, Amcor/Mondi and large Asian producers — competitive on price and capacity, many now offer ISO/REACH/FDA compliance and high‑PCR films; good when you need large export volumes from Asia. Verify exact certifications for EU food contact or REACH compliance. (gaoxinpack.com)

Which certifications / documents to require (checklist)

• ISO 9001 (quality management) — ensures consistent manufacturing and traceable QA. (sigmastretchfilm.eu)
• ISO 14001 or equivalent environmental management (or ERDE/Blue Angel for Germany) — for environmental claims and EU market expectations. (sigmastretchfilm.eu)
• REACH compliance and EU 10/2011 (for any film used in food contact or transported with foodstuffs) — mandatory for EU shipments involving food. (eumos.eu)
• ISCC‑PLUS / RecyClass / APR / other verified recycled‑content certifications — if you require PCR (post‑consumer recycled) claims or need to report Scope‑3 improvements. (sigmastretchfilm.eu)
• Material Data / Declaration (e.g., LCA, CO2 footprint statements) — valuable for sustainability reporting on cross‑border logistics. (triosilo.com)
• Test reports (tensile, cling, puncture, elongation, coefficient of friction) and machine compatibility data — critical to ensure load stability and compliance with cargo‑securing rules (EUMOS / EN / national rules). (eumos.eu)

Why these matter for international shipping/logistics

• Load stability and safety: certified, multi‑layer blown/cast films from the suppliers above are engineered to meet EUMOS/cargo‑securing requirements and reduce damage/claims. (eumos.eu)
• Cross‑border compliance: REACH / EU food contact and documentary proof ease customs/receiving inspections and support customer contracts in EU/UK/other markets. (eumos.eu)
• Sustainability requirements: many shippers and retailers demand documented recycled content, recyclability or lower carbon footprints — RecyClass/ISCC/APR are widely accepted verifications. (sigmastretchfilm.eu)

Practical procurement steps (quick)

1. Shortlist 2–4 providers from above (Trioworld, Sigma, IPG, Berry) and request: product data sheets, independent test reports (tensile/elongation/puncture/COF), ISO & environmental certificates, REACH/Food‑contact declarations, and any RecyClass/ISCC/APR evidence. (sigmastretchfilm.eu)
2. Ask for samples and run your machine / pallet tests (wrap force, film consumption per pallet, and transport vibration tests). Document performance vs. cost per pallet. (eumos.eu)
3. If you ship internationally, get written confirmation on country‑of‑origin, export lead times, minimum order quantities, incoterms and availability of monthly supply buffers. Confirm they can supply stated certificates for the exact film lot you order. (sigmaplasticsgroup.com)

German / EU recommendation

• For Germany/EU lanes prioritize suppliers with European production or distribution (Trioworld, Sigma, local Trioplast/Malpack lines, Mondi) because they offer faster lead times, ERDE / Blue Angel / RecyClass credentials and easier REACH / EU‑10/2011 paperwork. For global lanes or heavy industrial loads, IPG and Berry are excellent for scale and heavy‑duty film grades. (triosilo.com)

If you want, I can:

• assemble a one‑page RFQ template you can send to suppliers requesting all essential certificates and test data, or
• prepare a shortlist of regional contacts (Germany/EU) with supplier web pages and exact certificate links for each.

Which of those would you like next?