Top10 Fiber Optic Splice Closure Manufacturers & Suppliers For 2025
Sep 05, 2025| The fiber optic splice closure serves as an indispensable element within fiber optic communication infrastructures, engineered to provide robust protection for fiber splicing interfaces while accommodating surplus fiber management requirements.
In the future, with the integration of AI-enabled intelligent terminals and green energy-saving technologies, fiber optic splice closure devices will providing more reliable infrastructure support for smart cities and industrial Internet. This article will introduce the Top10 fiber optic splice closure Manufacturers & Suppliers For 2025.
Top10 Fiber Optic Splice Closure Manufacturers & Suppliers For 2025
1. Corning Incorporated
Corning Incorporated maintains industry-leading dominance in the global fiber optic splice closure market through its unparalleled technical expertise and brand equity. The company specializes in single-mode/multimode fiber solutions, addressing critical deployment scenarios such as aerial, underground, and duct installations. Notably, Corning holds dominance in high-density (≥288 cores) and ultra-reliable splice closures, addressing stringent network reliability requirements.
2. CommScope Holding Company, Inc.
As the second-largest supplier, CommScope Holding Company, Inc. focuses on high-bandwidth 100G/400G network deployments, leveraging thermal-shrink sealing innovations to eliminate resealing steps and FiberGuide™ systems for precise splice management. Strategic collaborations with Huawei and ZTE enable tailored OEM/ODM services for 5G infrastructure.
3.Glory Optical Communication Co.
Glory Optical Communication Co.,Limited located in Ningbo China. We are a leading manufacturer of fiber optic cabling and FTTx network field with more than 15 years experience, focus on production, R&D and sales of passive fiber optical products and FTTA/FTTH/FTTR solutions.
Glory solutions impress with their high degree of quality, innovative functionality, and exceptional convenience in installation and maintenance. We provide added value for all partners and users, from installers through to network operators. Our solutions ensure maximum availability and therefore cost-effective network operation.
01
High Quality
Strictly adheres to the ISO9001:2015 standard to establish a quality management system (QMS), ensuring comprehensive quality control throughout the entire lifecycle from raw materials to finished products.
02
Rich experience
With over 15 years of experience, we specialize in R&D and production of passive optical components and FTTx solutions
03
Professional Team
Our team is a dynamic, professional, innovative and united team. In the days to come, we will continue to move forward hand in hand to explore a broader market and create a better future.
04
Customizable
We emphasizes tailored products, such as low-loss fiber cables for long-distance transmission or bend-insensitive fibers for FTTH.
Our Products
GL-6812 Outdoor Inline Fiber Optic Splice Closure
GL-6814 Inline Fiber Optic Splice Closure
GL-6809 Inline Fiber Optic Enclosure
How to buy?
To browse our extensive product portfolio, visit our Product Menu, which enables you to navigate by product type or network type. Once you locate your desired product(s), select the Contact button to find our sales team.
4. Sterlite Technologies Limited
Sterlite Technologies Limited, India's largest fiber player, prioritizes affordability and localization through 288-core ribbon closures priced 20–30% below competitors. Localized production hubs in India, Vietnam, and Indonesia enable ≤7-day delivery, supported by technical training programs for regional partners.
5. AFL Telecommunications
AFL Telecommunications specializes in explosion-proof closures (ATEX-compliant) and heat-resistant models (≥85°C) for energy, transportation, and oil/gas sectors. Integrated fiber sensors enable real-time monitoring, enhancing safety and operational efficiency in hazardous environments.
6. Sumitomo Electric Industries
Renowned for precision and innovation, Sumitomo pioneers compact solutions. Its 144-core vertical closures save 30% space, while ceramic seals achieve IP69K ratings. Rapid Fusion Splicer FS-100P+ slashes splicing time to ≤5 minutes/core. In 2024, its 6% share came from NTT, KT, and Telstra deployments.
7. Futong Group
China's third-largest fiber preform supplier leverages vertical integration for cost-effective solutions. Affordable 288-core aerial closures (15%-25% cheaper than imports) drive rural broadband adoption. A nationwide service network and participation in "Broadband China" initiatives secure its 5% global share, serving China Mobile, Unicom, and Indian telecoms.
8. Yangtze Optical Fibre
China's top fiber preform producer focuses on proprietary tech like polarization-maintaining (PMF) closures (≤0.1dB loss). UV-cured seals cut installation time to ≤1 minute/port. Customizable designs cater to Huawei, ZTE, and aerospace clients. In 2024, its 4% share reflected niche leadership in specialty fibers.
9. Fibocommunications
A "device-terminal" integrator, Fibocom targets FTTH/data center segments. Compact 144-core desktop closures simplify residential deployments, while rack-mounted 576-core units align with data center architectures. Cloud-based Fibocom Cloud enables remote monitoring. In 2024, its 3% share stemmed from partnerships with China Telecom, Alibaba, and Tencent.
10. Fujikura Ltd.
Known for precision splicing and global reach, Fujikura's automated alignment closures (≤0.05dB loss) dominate LatAm and Southeast Asia. A 100+ country service network and RoHS-compliant biodegradable models meet EU sustainability demands. In 2024, its 2% share reflected strong overseas expansion.