Brett White
Analyst · Morgan Stanley
Thank you, Bill, and thank you all for joining us today. I'd like to begin this call by reminding everyone of our growth priorities and areas of focus as we continue to build one of the leading global commercial real estate services companies. These include: a focus on revenue and share growth due to delivery of differentiated and best-in-class service to our clients, strategic recruiting and infill M&A to continue to expand our strong global platform, continuing to leverage our strength in our large and growing recurring revenue businesses and continuing to grow margin through operational discipline. When we review our performance against these measures, 2018 was an outstanding year. For the full year 2018, we saw strong growth at the top and bottom lines. Growing fee revenue by 12% and adjusted EBITDA by 26%, setting all-time highs in both. These results were led by notable performance in our capital markets and leasing service lines. Adjusted EBITDA, at $659 million, was above the high-end of our guidance range. In the fourth quarter, we grew fee revenue by 10% over a very strong 2017 fourth quarter. Duncan will speak to the results in the fourth quarter in more detail later.
We also made significant progress on our stated goal to expand margin. Our full year adjusted EBITDA margin was 11.1%, which is an increase of 115 basis points year-over-year. Since 2014, we have grown margins by almost 400 basis points, and we continue to prioritize margin expansion as a key strategic objective across all of our businesses. In addition to our strong financial performance, 2018 was marked by many other notable highlights. As most of you know, in 2018, after more than a century of private ownership, Cushman & Wakefield successfully transitioned to a publicly traded company, with one of the leading IPOs in 2018. This transition had a transformative impact on the business, adding robust financial strength and liquidity. Our leading global brand continues to resonate in the marketplace, earning strong third-party recognition in 2018, including being named the #2 global commercial real estate brand by the Lipsey company, receiving top honors for real estate outsourcing by IAOP, and we were named the #1 commercial real estate adviser in the world by Euromoney. In 2018, Cushman & Wakefield was also recognized as a great place to work by top publications, such as Forbes. We're proud of these designations and hold them as proof that we are delivering on the promise we make each day to our many stakeholders around the world. We were very active in strategic recruiting throughout the year. Top theaters in major markets around the world continue to be drawn to our platform and culture. And as a result, in 2018, we saw strong share gains in many of our businesses around the world. This was very evident in our capital market service line, which saw impressive share creation. For example, in 2018, we ranked third overall in larger U.S. sales, representing a 32% increase in market share year-over-year. In addition to holding the #1 position in New York investment sales for the second year in a row, our gains were balanced across multiple gateway markets and asset types.
Furthermore, we continue to expand our global platform through infill M&A and completed 6 acquisitions in the year across nearly all segments. Most recently, we acquired Quality Solutions, Inc., QSI, to expand our facility management capabilities across North American markets through a supplier network at more than 50,000 qualified facilities contractors. At an approximately $250 million investment, this was one of the larger acquisitions we've made in the past few years. And we did so because it aligns very well with our stated priority to continue growing our recurring revenue PMFM service lines. There's also natural alignment with our existing Global Occupier Services business, which will integrate our existing platform and newly expanded supply chain to better serve our occupier clients. It's a business we're very excited about.
In the fourth quarter, we continued to win new business due to our leading position, scale and ability to serve clients around the world. Global Occupier Services finished the year with a strong win rate, as large corporates continue to consolidate providers and outsource real estate services to Cushman & Wakefield. Representative assignments from the fourth quarter included a reappointment as the sole facilities management provider for Royal Mail Group's portfolio of nearly 32 million square feet in the United Kingdom. And the renewal of a 5-year full-service contract for global communications technology company Avaya that includes strategic consulting, transaction management, project and development services and facilities management across our multimillion square foot portfolio in more than 50 countries. Finally, a new contract for Pearson Education, a multinational publishing company, was a good example of our brokerage business creating opportunities for our recurring revenue businesses. Pearson is a client that we represented in a one-off lease transaction. Introduction by one of our brokerage teams to our FM group led to us being awarded a facilities management contract across Pearson's multimillion square foot portfolio. Similarly, our facilities services business, which we call C&W Services, had a good year renewing their client accounts at a rate of more than 90%, while continuing to win new business, like a recent 13.5 million square foot portfolio mandate for Boston Properties across North America.
As I mentioned earlier, our capital markets and leasing businesses had outstanding performances in 2018. Recent marquee assignments in the fourth quarter included the biggest single retail asset trade in Europe in 2018, which was a disposal of one of Europe's largest shopping centers, approximately 1 million square feet in Helsinki, Finland. Exclusive marketing for the Coca-Cola Company at the landmark asset 711 Fifth Avenue in New York. The new international headquarters for Facebook, Cushman & Wakefield represented Facebook in their occupancy of an 870,000 square-foot 14-acre campus in Dublin, the largest single-leasing space by an occupier ever in Ireland. Representation of Brookfield in the sale of 10 and 12 Shelley Street in Sydney, which is one of the biggest capital markets deals in Australia in 2018. And finally, the disposal of a 12-property retail portfolio for Link REIT, a $1.53 billion sale in Hong Kong.
Now turning to Page 6. You'll see a dashboard on the global real estate market, which continues to read favorable for commercial real estate services. These are among the primary metrics we monitor to assess commercial real estate supply and demand, and to provide a foundation for our business forecast. First, you'll see that demand for real estate remains strong. Global GDP remains solid. The IMF is currently forecasting global GDP growth at 3.5% and 3.6% for 2019 and 2020, respectively. In the U.S., strong employment levels continue to create demand for office space, and we see conditions overall in the U.S. economy very favorable for real estate services. We watch status for APAC and EMEA, recognize moderate risk in China and continued uncertainty due to Brexit. Client metrics are overall unpaid for demand. Regional variations and local market dynamics aside, we think demand and supply metrics look broadly balanced for 2019, which will lead to continued rent growth. Capital Markets remain very active. U.S. sales volume in the fourth quarter grew 20% over the same period in 2017 and full year volume in 2018 is at a near record high. Fundraising for commercial real estate investment remains robust and dry powder is at a record high as 2019 begins.
In summary, industry fundamentals continue to be favorable, and we entered 2019 with an optimistic bias. We're very pleased with our performance this year. 2018's strong revenue growth continued through the fourth quarter, demonstrating that commercial real estate markets remain healthy and conducive to revenue, EBITDA and margin growth for Cushman & Wakefield. We're making excellent progress on our financial, operational and growth objectives and plan to translate that momentum into another successful year in 2019.
Duncan Palmer, our Chief Financial Officer, will now discuss our financial results and share more on our outlook and guidance for the year.