Home/Connecticut/HALLMARK MECHANICAL CORP.Corporation · Connecticut registryHALLMARK MECHANICAL CORP.View the available registration details for this business.StatusForfeitedEntity typeStock CorporationFiledAugust 17, 1990Record reference date: October 18, 2026Details may be incomplete or outdated. “Not reported” means a usable value is unavailable.Correct or remove this record.