Space companies brought in $1.9 billion during the first quarter, led by SpaceX's 'mega-round': Report - CNBC

In total, Space Capital tracks 1,480 companies with $186.7 billion in cumulative global equity investment since 2012 across its three categories.

The bulk of the investment in the space infrastructure segment went to rocket builders and satellite companies, with $1.1 billion and $900 million, respectively.

Anderson also said that investments in satellite companies, which make up about half of the deal activity in space infrastructure since 2012, directly affect the applications layer of companies that Space Capital tracks.

Seven of these companies are in the space infrastructure segment and, in all, the close of the SPACs will add nearly $3 billion in cash to company balance sheets.

"We welcome the access to additional capital that SPACs offer for infrastructure companies, but are cautious that valuations and growth targets may be out of reach for companies that don't have a defensible data angle," Space Capital said.