CalStar Names Mike Lemberg as CFO

Words: Dan KamysCalStar Names Mike Lemberg as CFO

CalStar, manufacturer of sustainable masonry products, has appointed Mike Lemberg as its CFO. Lemberg has spent the last 15 years helping grow and scale early-stage companies, including the last six years in the sustainable products industry.

Lemberg brings a broad set of skills to the CFO position, including strategic planning, supply chain management, and corporate development in addition to the more traditional roles of the CFO.

“Mike brings tremendous strategic insight and financial experience along with his passion to help high-growth companies succeed,” says CalStar CEO Joel Rood. “His strong track record overseeing financial strategy and executing growth strategies at many emerging companies makes him a great choice for CalStar as we focus on rapidly expanding our share of the $12 billion U.S. masonry market.”

Lemberg most recently served as CFO for EcoSMART Technologies, a brand of safe and effective pesticides sold through retailers such as The Home Depot, Lowe’s, and Walmart. Previous experience includes serving as VP of financial planning and analysis for UNICA (acquired by IBM), a global provider of enterprise marketing management software, and VP of corporate development and treasurer of Arbinet (2004 IPO), a leader in the electronics trading, routing and settling communications capacity market.

“I am excited to join such a fantastic team and investor group,” says Lemberg. “CalStar’s sustainable products have all the characteristics I seek in green solutions: They work as well as the traditional technology, have added benefits of sustainability and improved aesthetics, and do not carry a green price premium.”

A Legacy of Inspiration: Lynda Spina, CFO retires from STABILA North America
April 2026

After almost 30 years of dedicated service, Lynda Spina is retiring from her role as Chief Financial Officer of STABILA North America, closing an extraordinary chapter defined by steady leadership, financial discipline, and lasting impact.

Masonry in the Media: The Alamo, The Merchandise Mart, & More
April 2026

The scenery of films and TV shows alike is often a crucial yet underrated detail that can ultimately make or break a scene. In these American-made structures, take a look at how these movies and shows transformed iconic masonry buildings into the perfect

Announcing The Daily Digest From The MCAA
April 2026

Pay attention to your inbox starting Wednesday, April 8th. The MCAA is pleased to announce The Daily Digest, a selection of masonry news from around the world delivered right to you. “I receive daily emails from several news sou

Turning Visualization into Opportunity: How Digital Design Tools Are Supporting Today’s Masonry Contractors
April 2026

Today’s homeowners are taking a proactive approach to planning and design. Before reaching out to a contractor, many clients spend hours researching products, comparing materials, and building inspiration boards online. By the time they request a quote,