Insights

Recent Acquisition Aspen Manufacturing was acquired by RectorSeal LLC in May 2025, indicating a strategic expansion and increased market presence in the HVAC equipment manufacturing sector, which could translate into new sales opportunities through expanded distribution channels.

Facility Expansion The company has nearly doubled its manufacturing facility in Humble, Texas, from 132,000 to 204,000 square feet, signaling capacity growth and potential for increased production of HVAC coils and air handlers to meet rising demand.

Product Range & Market Aspen offers a broad portfolio of high-quality residential and light commercial HVAC components sold across the US and Canada via trusted wholesale and distributor networks, presenting multiple touchpoints for B2B sales engagement.

Financial Potential With reported revenues between 25 and 50 million dollars, Aspen represents a mid-sized manufacturer with room for growth and upselling of complementary HVAC solutions to existing clients and new market segments.

Parent Company Synergies Being part of CSW Industrials and under RectorSeal’s umbrella offers opportunities to leverage broader industrial solutions, cross-sell innovations, and access to a diverse customer base in the HVAC/R and building solutions markets.

Aspen Manufacturing Tech Stack

Aspen Manufacturing uses 8 technology products and services including HubSpot Analytics, Sucuri, WordPress, and more. Explore Aspen Manufacturing's tech stack below.

  • HubSpot Analytics
    Analytics
  • Sucuri
    Content Delivery Network
  • WordPress
    Content Management System
  • Open Graph
    Content Management System
  • Font Awesome
    Font Scripts
  • Bricks
    Page Builders
  • Ionicons
    Web Fonts
  • Apache
    Web Servers

Aspen Manufacturing's Email Address Formats

Aspen Manufacturing uses at least 1 format(s):
Aspen Manufacturing Email FormatsExamplePercentage
First.Last@aspenmfg.comJohn.Doe@aspenmfg.com
59%
FLast@aspenmfg.comJDoe@aspenmfg.com
28%
FirstL@aspenmfg.comJohnD@aspenmfg.com
9%
FirstLast@aspenmfg.comJohnDoe@aspenmfg.com
4%

Frequently Asked Questions

What is Aspen Manufacturing's phone number?

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You can contact Aspen Manufacturing's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Aspen Manufacturing's official website and social media links?

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Aspen Manufacturing's official website is aspenmfg.com and has social profiles on LinkedIn.

How much revenue does Aspen Manufacturing generate?

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As of December 2025, Aspen Manufacturing's annual revenue is estimated to be $25M.

What is Aspen Manufacturing's NAICS code?

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Aspen Manufacturing's NAICS code is 3334 - Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing.

How many employees does Aspen Manufacturing have currently?

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As of December 2025, Aspen Manufacturing has approximately 201 employees across 2 continents, including North AmericaAsia. Key team members include Ceo: J. L.Vice President Of Sales And Marketing: R. A.Vp Operations: C. M.. Explore Aspen Manufacturing's employee directory with LeadIQ.

What industry does Aspen Manufacturing belong to?

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Aspen Manufacturing operates in the HVAC and Refrigeration Equipment Manufacturing industry.

What technology does Aspen Manufacturing use?

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Aspen Manufacturing's tech stack includes HubSpot AnalyticsSucuriWordPressOpen GraphFont AwesomeBricksIoniconsApache.

What is Aspen Manufacturing's email format?

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Aspen Manufacturing's email format typically follows the pattern of First.Last@aspenmfg.com. Find more Aspen Manufacturing email formats with LeadIQ.

When was Aspen Manufacturing founded?

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Aspen Manufacturing was founded in 1975.

Aspen Manufacturing

HVAC and Refrigeration Equipment ManufacturingTexas, United States201-500 Employees

Founded in 1975 and headquartered in Humble, Texas, Aspen Manufacturing, a wholly owned subsidiary of RectorSeal, LLC, is one of the largest independent producers of evaporator coils and air handlers in North America. Aspen designs and manufactures a broad range of high-quality residential and light commercial evaporator coils and air handlers under the Aspen and Airmark brands, with products sold through a trusted network of wholesalers and distributors across the United States and Canada. Learn more at www.aspenmfg.com and www.airmark-ac.com.

About RectorSeal
RectorSeal, LLC, a wholly owned subsidiary of CSW Industrials, Inc. [NYSE: CSW], is a leading provider of quality solutions for the professional trades serving heating, ventilation, and air conditioning (HVAC/R), plumbing, electrical, and construction markets. For more information about RectorSeal’s innovative products and brands that increase efficiency and improve reliability, please visit www.RectorSeal.com.

About CSW Industrials
CSW Industrials is a diversified industrial growth company with industry-leading operations in three segments: Contractor Solutions, Specialized Reliability Solutions, and Engineered Building Solutions. CSW provides niche, value-added products with two essential commonalities: performance and reliability. The primary end markets we serve with our well-known brands include HVAC/R, plumbing, electrical, general industrial, architecturally-specified building products, energy, mining, and rail transportation. For more information, please visit www.cswindustrials.com.

Section iconCompany Overview

Phone number
NAICS Code
3334 - Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing
Founded
1975
Employees
201-500

Section iconFunding & Financials

  • $25M$50M

    Aspen Manufacturing's revenue is estimated to be in the range of $25M$50M

Section iconFunding & Financials

  • $25M$50M

    Aspen Manufacturing's revenue is estimated to be in the range of $25M$50M

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