About Cabling Installation & Maintenance

Our mission: Bringing practical business and technical intelligence to today's structured cabling professionals

For more than 30 years, Cabling Installation & Maintenance has provided useful, practical information to professionals responsible for the specification, design, installation and management of structured cabling systems serving enterprise, data center and other environments. These professionals are challenged to stay informed of constantly evolving standards, system-design and installation approaches, product and system capabilities, technologies, as well as applications that rely on high-performance structured cabling systems. Our editors synthesize these complex issues into multiple information products. This portfolio of information products provides concrete detail that improves the efficiency of day-to-day operations, and equips cabling professionals with the perspective that enables strategic planning for networks’ optimum long-term performance.

Throughout our annual magazine, weekly email newsletters and 24/7/365 website, Cabling Installation & Maintenance digs into the essential topics our audience focuses on.

  • Design, Installation and Testing: We explain the bottom-up design of cabling systems, from case histories of actual projects to solutions for specific problems or aspects of the design process. We also look at specific installations using a case-history approach to highlight challenging problems, solutions and unique features. Additionally, we examine evolving test-and-measurement technologies and techniques designed to address the standards-governed and practical-use performance requirements of cabling systems.
  • Technology: We evaluate product innovations and technology trends as they impact a particular product class through interviews with manufacturers, installers and users, as well as contributed articles from subject-matter experts.
  • Data Center: Cabling Installation & Maintenance takes an in-depth look at design and installation workmanship issues as well as the unique technology being deployed specifically for data centers.
  • Physical Security: Focusing on the areas in which security and IT—and the infrastructure for both—interlock and overlap, we pay specific attention to Internet Protocol’s influence over the development of security applications.
  • Standards: Tracking the activities of North American and international standards-making organizations, we provide updates on specifications that are in-progress, looking forward to how they will affect cabling-system design and installation. We also produce articles explaining the practical aspects of designing and installing cabling systems in accordance with the specifications of established standards.

Cabling Installation & Maintenance is published by Endeavor Business Media, a division of EndeavorB2B.

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AM Best Affirms Credit Ratings of National Indemnity Company and Its Affiliates

AM Best has affirmed the Financial Strength Rating (FSR) of A++ (Superior) and the Long-Term Issuer Credit Ratings (Long-Term ICR) of “aaa” (Exceptional) of National Indemnity Company (Omaha, NE) and its affiliates (collectively referred to as National Indemnity). These companies are subsidiaries of the ultimate parent, Berkshire Hathaway Inc. (Berkshire) [NYSE: BRK A and BRK B]. The outlook of these Credit Ratings (ratings) is stable. (See below for a detailed listing of the companies and ratings.)

The ratings reflect National Indemnity’s balance sheet strength, which AM Best assesses as strongest, as well as its very strong operating performance, very favorable business profile and appropriate enterprise risk management.

National Indemnity’s balance sheet strength benefits from its solid risk-adjusted capitalization, which is typically maintained at the strongest level, as measured by Best’s Capital Adequacy Ratio (BCAR), but is subject to occasional volatility, usually due to fluctuations in investment values or in the immediate aftermath of large dividend payments. This volatility is mitigated by ample liquidity and vast financial resources, not only at National Indemnity’s level, but also at Berkshire. Berkshire provides substantial financial flexibility, diversification and long-term competitive advantages associated with its non-insurance businesses, in addition to the benefit of its proven investment acumen. AM Best notes that National Indemnity’s BCAR scores remains supportive of the group’s strongest overall balance sheet strength assessment despite the payment of a $55 billion special dividend payment to Berkshire, which occurred in fourth-quarter 2024.

National Indemnity’s steady underwriting performance has been augmented by substantial investment contributions during most periods, which has led to operating results that have outperformed AM Best’s reinsurance composite, as measured by a broad range of profitability metrics, over a prolonged time period. National Indemnity’s underwriting results in large part reflect the performance of Berkshire’s other (re)insurance affiliates, as a substantial portion of the group’s premiums are assumed via quota share and to a lesser extent excess of loss reinsurance agreements with affiliates.

The FSR of A++ (Superior) and the Long-Term ICRs of “aaa” (Exceptional) have been affirmed with stable outlooks for National Indemnity Company and its following affiliates:

  • Columbia Insurance Company
  • National Fire & Marine Insurance Company
  • National Liability & Fire Insurance Company
  • National Indemnity Company of Mid-America
  • National Indemnity Company of the South
  • Berkshire Hathaway Specialty Insurance Company
  • Berkshire Hathaway Direct Insurance Company

This press release relates to Credit Ratings that have been published on AM Best’s website. For all rating information relating to the release and pertinent disclosures, including details of the office responsible for issuing each of the individual ratings referenced in this release, please see AM Best’s Recent Rating Activity web page. For additional information regarding the use and limitations of Credit Rating opinions, please view Guide to Best's Credit Ratings. For information on the proper use of Best’s Credit Ratings, Best’s Performance Assessments, Best’s Preliminary Credit Assessments and AM Best press releases, please view Guide to Proper Use of Best’s Ratings & Assessments.

AM Best is a global credit rating agency, news publisher and data analytics provider specializing in the insurance industry. Headquartered in the United States, the company does business in over 100 countries with regional offices in London, Amsterdam, Dubai, Hong Kong, Singapore and Mexico City. For more information, visit www.ambest.com.

Copyright © 2025 by A.M. Best Rating Services, Inc. and/or its affiliates. ALL RIGHTS RESERVED.

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