As the Q1 earnings season wraps, let’s dig into this quarter’s best and worst performers in the engineering and design services industry, including EMCOR (NYSE: EME) and its peers.

Companies providing engineering and design services boast ever-evolving technical expertise. Compared to their counterparts who manufacture and sell physical products, these companies can also pivot faster to more trending areas due to their smaller physical asset bases. Green energy and water conservation, for example, are current themes driving incremental demand in this space. On the other hand, those providing engineering and design services are at the whim of construction and infrastructure project volumes, which tend to be cyclical and can be impacted heavily by economic factors such as interest rates.

The 5 engineering and design services stocks we track reported an exceptional Q1. As a group, revenues beat analysts’ consensus estimates by 14.4% while next quarter’s revenue guidance was 6.6% above.

Luckily, engineering and design services stocks have performed well with share prices up 12.6% on average since the latest earnings results.

EMCOR (NYSE: EME)

Through its network of over 70 subsidiaries, EMCOR (NYSE: EME) provides electrical, mechanical, and building construction and services.

EMCOR reported revenues of $4.63 billion, up 19.7% year on year. This print exceeded analysts’ expectations by 10.3%. Overall, it was a stunning quarter for the company with an impressive beat of analysts’ adjusted operating income estimates and full-year revenue guidance exceeding analysts’ expectations.

Tony Guzzi, Chairman, President, and Chief Executive Officer of EMCOR, commented, “We started the year well, with record quarterly revenues and strong operating performance as we experienced sustained momentum across several key market sectors and geographies. These results reflect our strategic positioning and operational excellence across our construction and services platforms while demonstrating our customers' confidence in EMCOR as a partner of choice for complex and mission-critical projects. Our Remaining Performance Obligations are again at record levels and we are pleased with the quality and diversity of our bookings during the quarter. The fundamentals of our business remain strong and we are well-positioned for the remainder of 2026."

Investor expectations, however, were likely higher than Wall Street’s published projections, leaving some wishing for even better results (analysts’ consensus estimates are those published by big banks and advisory firms, not the investors who make buy and sell decisions). The stock is down 2.3% since reporting and currently trades at $844.10.

Read why we think that EMCOR is one of the best engineering and design services stocks, our full report is free.

Best Q1: Sterling (NASDAQ: STRL)

Involved in the construction of a major highway, the Grand Parkway in Houston, TX, Sterling Infrastructure (NASDAQ: STRL) provides civil infrastructure construction.

Sterling reported revenues of $825.7 million, up 91.6% year on year, outperforming analysts’ expectations by 39.5%. The business had an incredible quarter with a beat of analysts’ EPS and EBITDA estimates.

Sterling pulled off the biggest analyst estimate beat, fastest revenue growth, and highest full-year guidance raise among its peers. The market seems happy with the results as the stock is up 68.6% since reporting. It currently trades at $892.50.

Is now the time to buy Sterling? Access our full analysis of the earnings results here, it’s free.

Weakest Q1: AECOM (NYSE: ACM)

Founded in 1990 when a group of engineers from five companies decided to merge, AECOM (NYSE: ACM) provides various infrastructure consulting services.

AECOM reported revenues of $3.80 billion, flat year on year, falling short of analysts’ expectations by 5.3%. It was a slower quarter as it posted adjusted operating income in line with analysts’ estimates.

AECOM delivered the weakest performance against analyst estimates and slowest revenue growth in the group. As expected, the stock is down 13.7% since the results and currently trades at $68.62.

Read our full analysis of AECOM’s results here.

Dycom (NYSE: DY)

Working alongside some of the most popular mobile carriers in the world, Dycom (NYSE: DY) builds and maintains telecommunications infrastructure.

Dycom reported revenues of $1.96 billion, up 56.1% year on year. This number surpassed analysts’ expectations by 17.3%. It was an incredible quarter as it also produced EBITDA guidance for next quarter exceeding analysts’ expectations and a beat of analysts’ EPS estimates.

Dycom pulled off the highest guidance raise among its peers. The stock is up 11% since reporting and currently trades at $466.67.

Read our full, actionable report on Dycom here, it’s free.

MasTec (NYSE: MTZ)

Involved in the 1996 Olympic Games MasTec (NYSE: MTZ) is an infrastructure construction company that specializes in the telecommunications, energy, and utility industries.

MasTec reported revenues of $3.83 billion, up 34.5% year on year. This print beat analysts’ expectations by 10.3%. Overall, it was a stunning quarter as it also recorded a beat of analysts’ EPS and EBITDA estimates.

MasTec had the weakest guidance update and weakest full-year guidance update among its peers. The stock is flat since reporting and currently trades at $391.00.

Read our full, actionable report on MasTec here, it’s free.

Market Update

Late in 2025 into early 2026, there was hand-wringing around artificial intelligence. For software companies, the fear was that AI would erode pricing power and compress margins as new tools made it easier to replicate what once required expensive enterprise platforms. Crypto investors had their own version of the same anxiety: if AI agents could trade, allocate capital, and manage wallets autonomously, what exactly was the long-term value of today’s crypto infrastructure?

These concerns triggered a noticeable rotation away from these sectors and into safer havens. But markets rarely dwell on one narrative for long. Spring 2026 came, and the focus shifted abruptly from technological disruption to geopolitical risk. The US’ conflict with Iran became the dominant driver of market psychology, and when geopolitics takes center stage, the script changes quickly. Investors stop debating growth rates and start worrying about oil supply, inflation, and global stability.

Want to invest in winners with rock-solid fundamentals? Check out our Strong Momentum Stocks and add them to your watchlist. These companies are poised for growth regardless of the political or macroeconomic climate.