United States · Funded startup

Who invested in Apex

5 rounds we have observed, with the 15 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

Aerospace & SpaceDefence TechManufacturing

Raised this monthValuation: $1.0B, Mar 2026

Funding summaryUpdated 5 Nov 2026

$1.1Braised across 5 rounds since 2024, from 6 sources

$200MSeries C$200MSeries D$200MGrowth$500MRound
Latest round
Round, $500MOct 2026
Led by
Washington Harbour Partners Lp
Step-upi
2.5×
Investors
15 (3 led)
See who backed them

The funding story

Each circle is a round, placed by date and sized by amount. The line above is the running total.

20252026
$7.0MSeed$200MSeries C$200MSeries D$200MGrowth$500MRound
First round
Seed, $7.0M
May 2024
Biggest round
$500M
Round · Oct 2026
Usual gap between rounds
9 months
the median of 4

The rounds

  1. Oct 2026
    Round$500M3 returning

    Reported by Google News searchSEC filing: $157M sold

  2. Jun 2026
    Growth$200M2 new4 returning

    Source recordedSEC filing: $157M sold

  3. Sept 2025
    Series D$200M5 new2 returning

    Source recordedSEC filing: $152M sold, first sale Aug 2025

  4. Apr 2025
    Series C$200M5 new

    Reported by Crunchbase News and 1 otherSEC filing: $158M sold, first sale Apr 2025

  5. May 2024
    Seed$7.0M3 new

    Source recordedSEC filing: $72M sold, first sale May 2024

Founders and team

From Apex's own website: 2 founders, 7 on the team.

Ian CinnamonCo-Founder & Chief Executive Officer
Max BenassiCo-Founder & Chief Technology Officer
  • Adam CoreyChief Business Officer
  • Michael KopetChief Financial Officer
  • Chris FedeleVP, BD & Sales
  • Erin HammonsVP, IC Strategy
  • Graham MullingsVP, Engineering
  • Ian MaronVP, Talent & People Operations
  • Wes PuckettVP, Missions & Product

Who was in which round

The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.

Everyone who backed them

Andreessen HorowitzVC firm4rounds
8VCVC firm3rounds, led 1
XYZ Venture CapitalVC firm3rounds
Washington Harbour Partners LpPrivate equity2rounds, led 1
Z Venture CapitalCorporate VC2rounds
Point72 VenturesVC firm1round, led 1
Sequoia CapitalVC firm1round
Index VenturesVC firm1round
Lux CapitalVC firm1round
Village GlobalVC firm1round
LD CapitalVC firm1round
StepStone GroupFund of funds1round
Toyota VenturesVC firm1round
Sam AltmanAngel1round
Shield CapitalVC firm1round

Missing a round, or an investor who was in one? Tell us.

Also claim to have backed them

These 10 firms list Apex as a portfolio company on their own websites, but no report of a round names them. They are the firms' own claims, kept apart from the rounds above.

CRVVC firmPer its own site
Glynn Capital ManagementVC firmPer its own site
J2 VenturesVC firmPer its own site
Glade Brook Capital PartnersVC firmPer its own site
Outsiders FundVC firmPer its own site
RavelinVC firmPer its own site
75 & SunnyVC firmPer its own site
Kohala VenturesVC firmPer its own site
Point72 HyperscaleVC firmPer its own site
Solari CapitalVC firmPer its own site

Quick answers about Apex

Who invested in Apex?

Apex's investors include Andreessen Horowitz, 8VC, XYZ Venture Capital, Washington Harbour Partners Lp and Z Venture Capital, and 10 more on record. Washington Harbour Partners Lp led its latest round.

How much has Apex raised?

Apex has raised $1.1B across 5 rounds since 2024.

When did Apex last raise?

Apex's most recent round was an Undisclosed round of $500M in Oct 2026, led by Washington Harbour Partners Lp.

What was Apex's biggest round?

Its most recent round, $500M in Oct 2026, is also its largest on record.

Who backed Apex first?

Apex's first round on record, in May 2024, was backed by Sequoia Capital, Index Ventures and Sam Altman.

What stage is Apex at?

Apex's latest named round is an Undisclosed round, in Oct 2026.

Where is Apex based?

Apex is based in the United States.

Who led Apex's rounds?

8VC led the Series C in 2025; Washington Harbour Partners Lp led the Undisclosed round in 2026.

Companies like Apex

In the same sector, and raised in the last eighteen months.

Find investors like these

Search every investor by what they have actually funded, then narrow to your stage and market. Free.