Suffering from declining sales and fierce competition, all five Brennan’s Markets will close Sept. 30, the company announced Wednesday.

Brennan’s stores are located in Brookfield, Oconomowoc, Monroe and Madison, and the company also operates a cheese warehouse and packaging facility in New Glarus. Brennan’s has about 150 full- and part-time employees.

The stores are known for their fresh produce, cheese and craft beer offerings.

“Brennan’s Market saw a significant decline in sales during the recession beginning in 2008,” the company said in a news release.

“However, even as the economy rebounded, Brennan’s Market sales remained flat. The growth of competition and new options for consumers has made Brennan’s Market business model unsustainable.”

In Brookfield, for instance, the Brennan’s store at 19000 W. Blue Mound Road is located near a Roundy’s Metro Market, and a large new Sendik’s store that’s part…