A SIP home under construction on its foundation

Structural insulated panels have become popular for many new buildings. If you’re confused about which SIP manufacturer to go for, look no further.

We’ve compiled the top 13 SIP manufacturers in the United States to give you an overview and a starting point for inviting companies to quote for your project.

1. ACME Panel Company

ACME Panel Company manufactures structural panels used on roofs, floors, and exterior walls to build durable and sustainable buildings.

Headquartered in Southwest Virginia, the company produces some of the best SIPs in the U.S., having designed and built over 500 structures.

ACME also provides shipping throughout the East Coast.

In addition, the company offers pre-cut SIP boards from 4 x 8 in (10.16 x 20.32 cm) to 8 x 24 in (20.32 x 60.96 cm) in size, which can withstand winds up to 145 mph (233.36 kph).

A home by SIP manufacturer ACME Panel Company under construction
Courtesy of ACME Panel Company

The manufacturer presses its panels using a hydraulic system and uses third-party testing from National Testing Associates, ensuring it produces panels in compliance with building codes.

This manufacturer also makes 3D models of their projects and provides services such as: 

  • Design
  • Engineering
  • Construction
  • Project coordination

If you order blank panels, you can get your delivery in under two weeks. This route is a great option when there isn’t enough time to order pre-cut custom panels.

In addition, ACME always has the standard sizes in stock, so customers don’t have to wait too long to get their hands on SIPs.

2. Enercept, Inc

Exterior rear view of an Entercept SIP home
Courtesy of Enercept

Enercept has been around since the early eighties.

The company was the original holder of the patents for the insulated connecting posts, which eliminate thermal bridging.

Its panels are made from expanded polystyrene (EPS) rigid foam core sandwiched between two 7/16 in (1.11 cm) oriented strand boards (OSB) used in roofs, walls, and boards.

Their standard features include installing electrical chases with an easy-to-follow electrical guide.

Enercept even provides virtual on-site training so you don’t make installation mistakes.

Interior view of a Energy Panel Structures SIP home
Courtesy of Enercept

Some of its international projects are located in the following countries: 

  • Japan
  • Switzerland
  • Spain
  • Mexico 

What’s helpful about Enercept is that it gives you a free project estimate, so you don’t have to book a separate consultation.

3. Energy Panel Structures, Inc

Energy Panel Structures has been the United States’ largest SIP manufacturer since 1981.

The company started in Minnesota, initially making SIPs for the agricultural industry. Now, they have a production line ongoing for faster orders and delivery.

Interior view of a Energy Panel Structures SIP home
Courtesy of Energy Panel Structures

What’s interesting about its SIPs is the semi-continuous EnergyLok panel lines, their computerized trim line, and the uni-block cutter it uses to cut pallets of wood in one cut.

Enercept even offers a 20-year warranty on SIPs and other panels.

To reach the company, you can call directly, email, or get in touch with an authorized dealer in your area.

Enercept has a dealer network of more than 350 independent dealers, so you shouldn’t have trouble getting your panels within a few days.

4. Extreme Panel Technologies, Inc

Extreme Panel Technologies began manufacturing in 1992 and is now one of the largest SIP manufacturers in the United States.

The company has an entire manufacturing plant for its panels. Extreme Panel uses the latest production technology, such as computer-operated CNC machines.

Exterior rear view of an Extreme Panel Technologies SIP home in winter
Courtesy of Extreme Panel Technologies

The company also offers competitive prices for pre-designed home packages, pre-made designs, and boards. Its SIPs are either modular or integrated with traditional wood, steel framing poured concrete, and ICFs.

Extreme Panel is one of the most environmentally friendly panel manufacturers with zero panel off-gassing and ‘red list’ chemical-free envelopes.

These panels are protected against:

  • Moisture
  • Fungus
  • Carpenter ants
  • Termites 

They are also one of the best weatherproof options, block out cold drafts, and can be used in a hurricane-proof home, which makes them ideal for colder and tropical areas.

5. FischerSIPS

Established in 1987, FischerSIPS is considered one of the best SIP manufacturers. While not one of the biggest, it is flexible and caters well to its customers’ needs.

Exterior rear view of two FischerSIPS homes
Courtesy of FischerSIPS

FischerSIPS offers on-site assistance and has installers all around the U.S.

Its SIPS panels consist of the unique NEOPOR® material, a highly effective insulating material.

So, these SIPS panels are ideal if you want to save on energy costs and have better building insulation.

6. Foard Panel, inc

Foard Panel is another highly-respected company in the industry.

It has been manufacturing structural insulated panels since the mid-eighties, and is the only SIP manufacturer that sends installation teams directly to the site.

With its extensive experience, it builds SIP structures in days.

The company has a lot of experience installing SIPs, with their crew having over 15 years of experience.

Since it also does installations, the company doesn’t have to rent out equipment like excavators or hire professionals with experience and licenses in driving heavy equipment.

Courtesy of Foard Panel

Foard Panel’s greatest advantage is that the company owns the equipment, which translates to better cost savings for the customer.

If you don’t have time or need an experienced professional to install the SIPs, Foard Panel is ideal.

7. General Panel Corporation

Exterior front view of a General Panel Corporation SIP home
Courtesy of General Panel Corporation

General Panel Corporation is a SIPs manufacturer located in Grenada.

Its panels are third-party certified, and it uses state-of-the-art Weinmann CNC cutting equipment, ensuring the panels are cut clean and uniformly.

The company has high praise from reviewers. It also provides daily area safety inspections and has cost-effective solutions for all customers.

8. Insulspan SIP

Insulspan is a SIP manufacturer with more than 30 years of experience.

Insulspan SIP has earned a ‘Platinum’ rating from the U.S. Green Building Council’s LEED®-H Rating System, one of only two manufacturers in North America to get this rating.

Exterior side view of a Insulspan home
Courtesy of Insulspan

Insulspan has both US and Canadian code listings and also offers ready-to-assemble panels.

If you don’t have time to look for a trusted SIP manufacturer and want to ensure building safety, Insulspan SIP should be your go-to option.

9. Lamit by Armstrong

Lamit by Armstrong is a high-quality SIP manufacturer.

It was awarded the 2022 Excellence in Construction Innovation Award.

Lamit is part of the Armstrong group, which has over 16 facilities and 3,000 employees.

The company has worked in construction for more than 160 years and offers to deliver SIPs all over the U.S.

If you’re looking for a hybrid building material supplier and panel manufacturer, the Armstrong Group is an excellent choice.

10. Porter SIPS

Porter SIPS is a division of Porter Corp. based in Michigan.

It sells panels in retail and commercially nationwide and has been making SIPs since the 1960s.

The company has been recognized with best practices in foam recycling, including initiatives in technology advancement and innovation.

Exterior backyard view of a Porter SIPs home
Courtesy of Porter SIPS

Porter SIPS also offers high-performance building systems.

You can email Porter SIPs directly on its website to get a quote.

In addition, Porter SIPs work with the clients’ contractors to train them in installation, which sets them apart from other SIP manufacturers.

The company also offers clients unique panel covering materials, which gives you more freedom to customize your roof panels.

11. Thermocore Panel Systems

Based in Indiana, Thermocore Panel Systems has over 20 years of experience in the industry. 

The company stands out for developing innovative roof and wall building systems with more standard features and the highest R-values.

Therefore, they are the best products if you’re looking to conserve energy and save on your recurring utility bills.

As the first company to offer 8’x24’ polyurethane foam core panels, Thermocore Panel Systems has sufficient knowledge and expertise to generate the best products in the industry.

We featured this company on this list because it has a detailed process that ensures customers get the best SIPs. The process involves:

  • Assessing a customer’s building plans to show wall heights, footprints, roof patches, and roof plans.
  • The company then generates detailed panel plans for a client’s review and approval
  • After approval, the panels are readied for production
  • After production, the company stacks the panels in their install order in preparation for shipping
  • Finally, the panels are delivered to a customer’s site

As you can see, it’s a stress-free process. 

12. SIPs of America

SIPs of America is among the few companies that produces preconfigured polyurethane insulated panel systems.

The company stands out for its superior quality, attention to detail, speed, craftsmanship, and excellent customer service.

As one of the top SIP manufacturers in the U.S., SIPs of America generates completely pre-configured wall and roof panels to meet the exact shape and design of the customer.

Its panels are made up of polyurethane insulated cores with interior and exterior skins comprising exterior SIP grade oriented strand board (OSB).

The company guaranteed the highest strength possible by using a foam injection process to manufacture its panel systems.

Finally, its panels come complete with tongue and groove splines for easy fitting.

13. Premier Building Systems

Finally, Premier Building Systems is one of the top SIP manufacturers to get quotes from. It stands out for creating high-performance building envelope systems guaranteed to create better homes for everyone.

The company’s SIPs are third-party verified to ensure flawless engineering and energy efficiency for time-tested building envelopes.

This company stands out for creating premier SIPs that deliver a healthier environment, exceed code requirements, are 60% more energy-efficient than stick framing, and are highly durable to stand the test of time.

Its SIPs are suitable for residential and commercial use.


The above list of SIPs manufacturers will help you narrow down your search for the best SIPs producers and fabricators in the U.S.

Whether a company’s length of experience in SIPs manufacturing is your most important consideration, or your budget dictates that value for money is the priority, you should find a company that meets your needs.

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