Jamie Gull

Jamie Gull is the founder and solo general partner of Wave Function Ventures, an early-stage deep tech fund for hardware founders.^{[1]Wave Function Ventures (PR Newswire)Announcing Wave Function Ventures' $15M Fund I to Back Deep Tech FoundersPress release, Oct 3, 2025} He was an engineer at Scaled Composites and SpaceX, and co-founded Talyn Air, which Ampaire acquired in 2023.^{[3]Y CombinatorTalyn Air company profile and founder biosYC[6]Ampaire (via Airframer)Ampaire acquires Talyn Air, expanding reach into defense, drone and eVTOL segmentsPress release, Jul 20, 2023}

A deep tech fund that invests at the earliest stages, sometimes pre-incorporation, in aerospace, defense, energy, robotics and infrastructure.^{[1]Wave Function Ventures (PR Newswire)Announcing Wave Function Ventures' $15M Fund I to Back Deep Tech FoundersPress release, Oct 3, 2025[2]Wave Function VenturesCompany websiteCompany} It announced the final close of its $15M Fund I on 3 October 2025, nine investments in.^{[1]Wave Function Ventures (PR Newswire)Announcing Wave Function Ventures' $15M Fund I to Back Deep Tech FoundersPress release, Oct 3, 2025} Its LPs are founders, engineers and high-net-worth individuals, plus funds of funds and large family offices.^{[1]Wave Function Ventures (PR Newswire)Announcing Wave Function Ventures' $15M Fund I to Back Deep Tech FoundersPress release, Oct 3, 2025}

He was the responsible engineer on the Falcon 9 aft thermal shield, the hardware at the base of the booster that enabled the first hypersonic reentry of an orbital rocket and the reuse of its first stage.^{[3]Y CombinatorTalyn Air company profile and founder biosYC[4]Deeptech DecodedJamie Gull on the Falcon 9 aft thermal shield (24:15)Episode}

He joined as a design engineer, did the early sizing work on the aircraft that became Stratolaunch, and was one of the first three or four engineers on a 5,000 lb optionally manned aircraft.^{[3]Y CombinatorTalyn Air company profile and founder biosYC[5]Deeptech DecodedJamie Gull on joining Scaled Composites and working on Stratolaunch (08:33)Episode[7]Deeptech DecodedJamie Gull on starting as one of three or four engineers (10:42)Episode}

The eVTOL company he co-founded with Evan Mucasey and took through Y Combinator's Winter 2020 batch.^{[3]Y CombinatorTalyn Air company profile and founder biosYC[8]Deeptech DecodedJamie Gull on Talyn, Y Combinator and the 2023 exit (34:25)Episode} Talyn built long-range electric VTOL cargo aircraft: an electric fixed-wing aircraft caught mid-air by a custom winged drone, so it takes off and lands vertically without giving up fixed-wing range.^{[3]Y CombinatorTalyn Air company profile and founder biosYC} Ampaire acquired it in 2023.^{[6]Ampaire (via Airframer)Ampaire acquires Talyn Air, expanding reach into defense, drone and eVTOL segmentsPress release, Jul 20, 2023[8]Deeptech DecodedJamie Gull on Talyn, Y Combinator and the 2023 exit (34:25)Episode}

Deep tech hardware at pre-seed and seed, occasionally before a company is incorporated.^{[1]Wave Function Ventures (PR Newswire)Announcing Wave Function Ventures' $15M Fund I to Back Deep Tech FoundersPress release, Oct 3, 2025} The fund's sectors are aerospace, defense, energy, robotics and infrastructure.^{[1]Wave Function Ventures (PR Newswire)Announcing Wave Function Ventures' $15M Fund I to Back Deep Tech FoundersPress release, Oct 3, 2025[2]Wave Function VenturesCompany websiteCompany[9]Deeptech DecodedJamie Gull on investing only in hardware (37:20)Episode}