The company is named after its chief designer Aleksandr Andreyevich Raspletin [ru].Since 1955, KB-1 developed such air defence missile systems as the S-25 Berkut, S-75 Dvina, S-125 Neva/Pechora, S-200 Angara/Vega/Dubna, S-300, S-400 Triumf, S-300PMU, S-300PMU2, and S-350E Vityaz.On 30 November 2009, the board of directors of Almaz-Antey voted to reorganize the joint-stock companies NIEMI, NIIRP, MNIIRE Altair and MNIIPA, merging them with NPO Almaz to form GSKB joint venture.NIIRP scientific & research center is developing the Joint system of air and ballistic missile defense (Russian: ЕС ЗРО ПВО-ПРО).NIIRP had previously designed the A-35 and A-35M BMD systems, which defended Moscow from 1977 until the full deployment of the A-135.