Michael Lamach
Analyst · UBS
Thanks, Zac, and thanks to everyone for joining us on the call today. Please go to Slide 3.
I'd like to begin with a brief review of the fundamental elements of our business strategy that drives long-term value creation for shareholders. This is often a helpful starting point for those of you listening, who may be less familiar with the company.
First, our global business strategy is at the nexus of environmental sustainability and impact. The world is continuing to urbanize while becoming warmer and more resource-constrained as time passes. We excel at delivering energy efficiency and reducing greenhouse gas emissions, reducing food and other waste of perishable goods and generating productivity for our customers, all enabled by digital and other exponential technologies. Our business portfolio positioning creates a platform for the company to consistently grow above average global economic conditions, aided by the strong secular tailwinds that I've outlined.
Second, our business operating system is designed to excel at delivering strong top line growth, incremental margins and free cash flow. Our business operating system underpins everything we do and enables us to consistently generate powerful free cash flow, which, when combined with our dynamic capital allocation strategy, drives strong returns for shareholders over the long term.
And finally, over the years, we've built an experienced management team and a high-performance winning culture, which gives me confidence in our ability to deliver strong results that are sustainable for the long run. Having a strong winning culture takes years to build and cultivate, and I believe this is one of the things that the market may underappreciate about Ingersoll Rand. As we consistently execute our strategy, we continue to build a stronger company that delivers reliable and consistent financial performance for shareholders over the long term.
Moving to Slide 4. Midway through the year, we continue to execute well against our long-term strategy and 2018 is shaping up to be a very good year for us. Our end markets are healthy, and we are executing well, as evidenced by the strong growth we're delivering in bookings and revenues in both our Climate and Industrial segments across virtually all products, services and geographies globally.
Our Industrial segment continues to perform well with broad-based bookings and revenue growth and significant margin expansion. We're effectively managing inflation and tariff headwinds. We delivered a 10 basis point positive price versus material inflation spread in the second quarter, which reflects strong pricing discipline and efficiency. Our China growth strategy is performing well against our expectations, with continued strong revenue and bookings growth and improving margins. As we look forward, we expect our end markets to remain healthy, with consistent execution of our business operating system, which gives us confidence in raising our full year guidance revenues, EPS and free cash flow.
Please go to Slide #5. In the second quarter, we delivered strong growth in organic bookings and revenue across the board, as indicated by the positive signs on the chart. Enterprise organic bookings and revenues were up 15% and 9%, respectively. Climate led the way with organic bookings and revenues of 17% and 9%, respectively. And Industrial was also very strong, with organic bookings and revenues up 8% and 9%, respectively. These results represent continued healthy end markets and consistent execution of our strategy.
A couple points to highlight. First, we did not see a significant impact from revenue pull-ins ahead of price increases or tariffs in the quarter, and Sue will discuss it in more detail later. And second, we didn't have any large performance contracting orders to call out in the quarter that would've skewed our results. The 1 minus on the chart was in small electric vehicle bookings, where results were only modestly lower. Golf was down, with utility and consumer vehicles showing bookings growth as expected.
Please go to Slide #6. This slide provides insight and color into the key drivers behind the chart on Slide 5 and how we're thinking about the outlook for the year. In commercial HVAC, we're seeing sustained growth globally in both bookings and revenue, with good growth in both equipment and services and particular strength in Asia. North America growth remained solid, with gains in equipment, services, contracting and controls. Institutional growth was particularly strong, led by education. And Industrial HVAC strength was also notable in the quarter. Europe, the Middle East and Africa commercial HVAC remained strong with solid growth across the board in equipment and after-market, and we saw additional growth in services from our rental services business. China continued to have a very strong growth in the quarter, led by the execution of our China direct sales growth strategy. Our outlook for total commercial HVAC remains healthy for 2018, and key economic and market indicators largely support our view.
Turning to residential HVAC, bookings and revenue growth were also very strong, particularly against tough growth comps versus 2017. The replacement markets, where the majority of our sales are derived, showed very good growth in the second quarter, and this is expected to continue through 2018. Our transport solutions business continues to be a diversified, resilient business, and the improving market conditions for North America refrigerated trailer have been a positive. North American trailer order growth was strong in the quarter and revenues were up as well. The Americas Commercial Transportation Research Company, also known as ACT, has taken up their forecast for North American refrigerated trailers to approximately 5% growth over 2017.
However, industry capacity by trailer OEMs is constrained, it's not clear how much the industry will actually grow at this stage.
Auxiliary power unit growth remained strong, with good growth in both refrigerated and nonrefrigerated segments. We're also seeing continued solid growth in Europe, the Middle East and Africa truck, which is a meaningful business for us. Overall, the transport market should be stronger than we originally expected in 2018, primarily led by improvement in the North American trailer market.
Compression Technologies is seeing the continuation of an industrial recovery, consistent with industrial production and other key leading indicators. In the quarter, we delivered good growth in bookings and revenues in both equipment and after-market. All major geographies were solid, with particular strength in Asia. For 2018, we expect to see solid growth broadly across key products, services and markets. Small electric vehicle revenue growth was strong, driven largely by successful market penetration of our consumer vehicle, and we expect that to continue through 2018. We also delivered strong growth across our Industrial Products business, which are comprised of tools, fluid management and material handling. We expect to see continued good growth in our Industrial Products businesses in the second half of the year.
And now I would like to turn over to Sue to provide more details on the quarter and to discuss our 2018 guidance increase. Sue?