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Johns Manville Corporation: Business Overview, Financials & Competitive Analysis

Johns Manville is a leading manufacturer and marketer of premium-quality products for building insulation, mechanical and industrial insulation, commercial roofing and roof insulation, as well as reinforcement fibergl...

Analyst-debate audio for Johns Manville Corporation

AskCyborg analysts argue the bull and bear cases for Johns Manville Corporation across 11 stress-tested dimensions. Listen on your commute -- faster than reading the 30-page report.

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7/ 10Strong

Cyborg Score thesis

Market-leading position in essential building materials backed by Berkshire Hathaway's financial resources and strategic patience...

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Industry Insulation Materials
4 named competitors
2 recent developments
11 analyst dimensions
Synthesized from analyst-debate stress-testing across 11 dimensions and hundreds of data points. Methodology →
Cyborg Score recalibrated: November 2, 2026
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Johns Manville Corporation Overview

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Johns Manville is a leading manufacturer and marketer of premium-quality products for building insulation, mechanical and industrial insulation, commercial roofing and roof insulation, as well as reinforcement fiberglass and technical nonwovens. In business since 1858, the Denver-based company has annual sales over $4 billion and is owned by Berkshire Hathaway since February 2001.

Strategic Profile

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JM employs 8,000 people and operates 44 manufacturing facilities in North America and Europe. John Vasuta assumed the role of President and Chief Executive Officer effective August 1, 2026, signaling leadership continuity and operational stability under Berkshire Hathaway ownership. The company serves customers across North America and Europe and has a global footprint spanning more than 80 countries, with its global research and development operations based in Denver, Colorado.

Competitive Landscape

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Top competitors include Holcim, CRH and DuPont in building materials and construction products. Johns Manville competes primarily on product quality, scale, manufacturing footprint, and Berkshire Hathaway's financial backing. The company maintains leadership positions through vertical integration across insulation types and roofing systems serving residential, commercial, and industrial segments.

Industry Context

Johns Manville Corporation operates in Insulation Materials.

Key facts

Founded: 1858 · Headquarters: Denver, US · Employees: 8,000 · Revenue: $4 billion (as of 2026)

What the AI analysts debated

AI-generated and not independently verified: selected findings from the multi-agent debate on Johns Manville Corporation.

  • Annual sales exceed $4 billion with leadership positions across key markets served, demonstrating revenue scale and competitive dominance in fragmented building materials space.
  • New fiberglass insulation production line in Barrow County, Georgia, set to begin construction in early 2026 and create over 30 new jobs by mid-2027, bringing total Barrow County employment to over 350, indicating capacity expansion for growth capture.

Recent developments

Material events tracked by the AskCyborg corpus.

  • August 2026John Vasuta became President and Chief Executive Officer, replacing retiring Bob Wamboldt
  • Early 2026Announced construction start for new fiberglass insulation production line in Georgia with 30+ job creation expected by mid-2027
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Named competitors

Pulled from the analyst-debate framework. Click any competitor to see their Cyborg Score.

Owens CorningManufacturer of fiberglass insulation, roofing, and engineered fibers→Rockwool InternationalManufacturer of stone wool insulation for building and industrial applications→Kingspan GroupManufacturer of high-performance insulation panels and building envelope solutions→Knauf InsulationManufacturer of fiber-based and eco-friendly insulation products globally→

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Industry context

Johns Manville Corporation operates in Insulation Materials. See how the rest of the sector scores on the Cyborg framework.

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Frequently asked questions

What does Johns Manville Corporation do?+
Johns Manville is a leading manufacturer and marketer of premium-quality products for building insulation, mechanical and industrial insulation, commercial roofing and roof insulation, as well as reinforcement fibergl...
What is Johns Manville Corporation's Cyborg Score?+
Johns Manville Corporation has a Cyborg Score of 7/10 (Strong). The score synthesizes business model, financials, leadership, competitive position, technology, marketing, and ESG dimensions across hundreds of data points.
Who are Johns Manville Corporation's main competitors?+
Named competitors include Owens Corning, Rockwool International, Kingspan Group, Knauf Insulation. The full competitive landscape is in the AskCyborg report.
How can I get the full Johns Manville Corporation research report?+
Get the report plus analyst-debate audio at askcyborg.com -- no credit card required for preview access. Pro adds saved-company audio playlists and monitoring.
How current is the Johns Manville Corporation research?+
The Cyborg Score is recalibrated weekly. Recent developments are tracked continuously and surfaced in every report.

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