Impulse Space secures $500 million to scale in-space mobility fleet

Impulse Space raised $500 million in a Series D led by 137 Ventures and BANNER VC to dramatically scale production of its Mira maneuverable spacecraft and Helios kick stage, addressing growing demand from civil, commercial, and national-security customers. With total funding now exceeding $1 billion, the company plans Caravan rideshare missions to GEO beginning in 2027, eyes a NASA CLPS 2.0 opportunity for a ~3-ton lunar lander, and intends to accelerate hiring (to about 500 employees) without enlarging facilities in the near term. No IPO plans are indicated.