Thanks, Jay. Slide 5 provides a high-level overview of the Surface Pressure Control. SPC is a pure-play designer, manufacturer and service provider of wellhead and production tree equipment. The SPC customer base is concentrated in the Mid East where it generated approximately 85% of its revenue in 2024. The business also has an established presence in Europe, serving North Sea primarily and Africa, Asia and South America. SPC does not sell into North America or Australia, so there is limited overlap with the existing Cactus Pressure Control business.
In 2024, SPC generated nearly $500 million in revenue and approximately $87 million in adjusted EBITDA, resulting in a 17% adjusted EBITDA margin. Backlog at year-end 2024 was greater than $600 million, and this number represents only firm purchase orders placed into the SPC business for near-term delivery and does not reflect the full order potential for long-term contracts that SPC holds with key customers.
Aftermarket services represented more than 30% of the total revenue last year, representing a strong recurring revenue stream. This high level of backlog and leverage to recurring aftermarket services creates a level of revenue, earnings and cash flow stability within the business that is not generally found in the North American market.
The aftermarket services differ from the service revenue that we report in the U.S. as SPC aftermarket service generally involves selling equipment to upgrade or modify its large installed base of wellheads and trees, which is typically not performed at a scale in the U.S. market. This portion of the business is primarily -- is particularly attractive as it is less tied to new drilling than traditional product sales.
SPC has over 1,100 employees across the globe with its headquarters in Abu Dhabi and 3 primary manufacturing locations. The Suzhou, China and Dammam, Saudi Arabia manufacturing facilities were originally established by the Cactus management team and the new UAE facility is commencing substantial operation in 2025. These facilities are uniquely positioned to serve some of the most important international markets and customers.
On the lower right of the page, you'll see an abbreviated timeline of the SPC business, which traces its roots back over 100 years. GE acquired both the former Vetco Gray and Wood Group Surface Pressure Control business in 2007 and 2011, respectively, and the Surface Wellhead portions of those businesses are largely what makes up SPC today. As a reminder, Joel, Steven and I ran the Wood Group Pressure Control business until it was sold to GE.
In summary, I couldn't design a more complementary business to fit with Cactus' existing portfolio if you gave me a blank sheet of paper. SPC sells the same products with which we are so familiar, new facilities we've managed previously and the most attractive end markets where Cactus does not currently operate.
As seen on Slide 6, approximately 85% of SBC revenue comes from the Mid East. The Mid East has the largest amount of proved reserves and the lowest breakeven cost of any oil supply on the planet. SPC is well established and has strong relationships in the largest markets, including Saudi Arabia, Qatar, Kuwait and the UAE. In addition to selling to the largest NOCs in these countries, SPC has a robust manufacturing presence in the region. Recent capital additions and upgrades to this manufacturing presence support the opportunity to expand penetration in the region.
Slide 7 provides an overview of how this acquisition transforms Cactus from a geographic perspective. Currently, only 5% of our Pressure Control revenue and 6% of our total Cactus revenue comes from markets outside of the U.S. On a pro forma basis, 44% of Pressure Control revenue and 34% of consolidated Cactus revenue will be generated from markets outside of this country.
Slide 6 (sic) [ Slide 8 ] showcases the operational footprint of the business. The headquarters is in Abu Dhabi, with manufacturing in Suzhou, China, Abu Dhabi in the UAE and Dammam, Saudi Arabia. SPC also has service centers strategically positioned near activity centers around the globe and an R&D facility in Houston. We believe this broad footprint and customer reach will accelerate FlexSteel's expansion in these regions.