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Caplugs: The Unsexy $35M Industrial Titan
How a 70-year-old company dominates product protection through SEO and scale
In a world obsessed with SaaS valuations, Caplugs quietly commands $35M in revenue selling plastic caps and plugs. They've built an industrial empire on the most mundane products imaginable, proving that boring businesses can be wildly profitable when executed with ruthless efficiency.
"Caplugs doesn't sell products—they sell industrial peace of mind, one plastic plug at a time."
The SEO Moat Strategy
Caplugs dominates hyper-specific industrial keywords like 'm85049/138-42c' (420 monthly searches) and 'rubber caps caplug' (320 monthly searches). This isn't accidental SEO—it's decades of cataloging every possible part number and application. Their 42% organic traffic share proves they've built an unsexy but unbreakable moat: when an engineer needs a specific cap for a specific part, Caplugs is the answer.
The Industrial Inheritance
Founded in 1954, Caplugs predates Silicon Valley by decades. President David Williams leads a 546-person operation that still operates like a pre-internet industrial supplier—except now they have Shopify on top. Their 47% direct traffic (nearly equal to organic) reveals a loyal B2B customer base that bookmarks Caplugs like engineers once filed paper catalogs. This isn't a growth-stage startup; it's a legacy player that digitized without losing its soul.
Their tech stack tells the story: Tailwind CSS, Bootstrap, and Google Analytics—practical tools for a practical business. No fancy headless CMS, no AI chatbots. They even use Clarity (Microsoft's heatmap tool) to optimize conversions for a product that costs pennies. This is where venture capital would scream 'efficiency'—but Caplugs is profitable, which is the only metric that matters in heavy industry.
- 546 employees generating $35M revenue = $64K per employee (highly efficient)
- 47% direct traffic shows insane customer retention
- Dominates obscure industrial keywords with 400+ monthly searches
- Sells across 5 social platforms but focuses on LinkedIn for B2B
- 70-year history digitized into a modern e-commerce experience
The Unsexy Billion-Dollar Playbook
Caplugs proves that boring, capital-intensive businesses with deep domain expertise and SEO dominance are the ultimate startup killers—profitable, defensible, and utterly uninterested in your startup's valuation metrics.
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Plastic Caps & Plugs, Masking Solutions & Product Protection | Caplugs
Caplugs delivers solutions for product protection, masking, shipping, finishing and more. Find the parts you need and order online today.
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About caplugs.com
Caplugs delivers solutions for product protection, masking, shipping, finishing and more. Find the parts you need and order online today.
Company Overview
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Technology Stack
caplugs.com uses 19 technologies across their website including Font Awesome, Google Fonts, HSTS, reCAPTCHA, jsDelivr, and more.
Fonts
Font Awesome, Google Fonts
Security
HSTS, reCAPTCHA
CDN
jsDelivr
Privacy & Consent
CookieYes
Marketing Automation
HubSpot
Advertising
DoubleClick Floodlight, Microsoft Ads, Facebook Pixel
Traffic & Audience
caplugs.com receives approximately 44.3K monthly visitors and ranks #574,278 globally. The website has a bounce rate of 47% with visitors viewing an average of 3.6 pages per visit. Users spend an average of 1:25 on the site.
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