It’s time again for the cream to rise to the top.

Fourteen area companies were among the 40 named to the seventh annual Marcum Tech Top 40, an annual list of Connecticut’s fastest growing technology companies.

The elect are divided into six categories: Advanced Manufacturing, Energy/Environment/Green Technology, IT Services, Life Sciences, New Media/Internet/Telecom and Software, with one winner from each being announced at an October 2 event at the Oakdale Theater in Wallingford. An overall winner demonstrating the largest growth across all tech sectors will also be announced.

Local companies making the grade this year include:

• Advanced Manufacturing: APS Technology (Wallingford) • Energy/Environmental/Green Technology: Proton OnSite (Wallingford)

• IT Services: Cervalis (Shelton)

• Life Sciences: Alexion Pharmaceuticals (Cheshire), Bio-Med Devices (Guilford)

• New Media/Internet/Telecom: HealthPlanOne (Shelton), iSend (Middlebury); Reality Interactive (Middletown) • Software: Clarity Software Solutions (Madison), Core Informatics (Branford), Fitlinxx (Shelton), Higher One (New Haven), Square 9 Softworks (New Haven), Tangoe (Orange).

Eligible companies are those who have a demonstrated record of growth in each of the past four years, generate a minimum of $3 million in annual revenue (although four of this year’s finalists have broken through the $1 billion barrier).

The Marcum Tech Top 40 is a joint program of the Connecticut Technology Council and investment firm Marcum, LLP. More information and a full list of the Top 40 may be viewed at ct.org.