10 Must-Buy Small-Cap Stocks to Invest In

6. Willdan Group, Inc. (NASDAQ:WLDN)

Market cap: $1.56 Billion

Year-to-date returns: 182.03%

Number of hedge fund holders: 25

Willdan Group, Inc. (NASDAQ:WLDN) is one of the must-buy small-cap stocks to invest in. On August 7, it delivered solid second-quarter results, characterized by double-digit revenue and adjusted EBITDA growth.

Net revenue in the quarter was up 31.1% year-over-year to $95 million, beating consensus estimates of $83.83 million. Net income increased 236% to $15.4 million as diluted adjusted earnings per share increased 172.7% to $1.50.

The better-than-expected results underscore strong execution in core programs, new contract wins, and the impact of successful strategic acquisitions.

“Electricity load growth from data centers and broader electrification trends are accelerating the need for reliable power and resilient grid infrastructure, driving investment across our markets. Following a record first half to the year and a strong outlook, we are increasing all 2025 financial targets,” said Mike Bieber, Willdan’s President and Chief Executive Officer.

Following solid second-quarter results, Willdan has raised its full-year financial guidance. It now expects full-year revenue to range between $340 million and $350 million, leading to diluted adjusted earnings per share of $3.50 to $3.65 per share.

Willdan Group, Inc. (NASDAQ:WLDN) provides professional, technical, and consulting services to a diverse range of clients, including utilities, government agencies, and private industry. It offers a wide range of services, including energy efficiency and sustainability, engineering and planning, and financial consulting.