signal/raiseTrack rounds
Q

Quiet Capital

Focus: HR & work, Defence & space, AI

Quiet Capital took part in 3 of the startup funding rounds we tracked in 2026. By money raised, its biggest sectors were HR & work and Defence & space. The largest was Thatch's $108m Series C round. The most recent was Mach9's Series A round in October 2026.

Deployed as lead$0k
Rounds led0
Rounds joined3
Largest round$108m

Also invested (3)

Mach9Series A · AI · San Francisco · 21 Oct$34mQuartermasterSeries B · Defence & space · Arlington · 28 Sep$100mThatchSeries C · HR & work · United States · 15 Sep$108m

By sector

HR & work$108mDefence & space$100mAI$34m

By stage

Series A$34mSeries B$100mSeries C$108m

Co-investors

First Round Capital2 roundsBessemer Venture Partners1 roundInsight Partners1 roundBoxGroup1 roundIndex Ventures1 roundGeneral Catalyst1 roundAndreessen Horowitz1 roundScale Venture Partners1 roundAvid Ventures1 roundSemperVirens1 round