Best Aerospace Engineering and Design Services Companies in California, United States
The 128 best Aerospace Engineering and Design Services companies in California, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: K2 Space.
Ranked: Best Aerospace Engineering and Design Services companies in California
| # | Company | Disclosed funding | Last round | Stage | Founder | Founded | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | K2 Space 🦄 Provider of aerospace hardware products designed services 62Funding top 20%Talent top 38%Growth top 40%Moat top 45% All 8 signals ▾Fundingtop 20% Talenttop 38% Growthtop 40% Moattop 45% Markettop 50% Newsbottom 46% Techbottom 41% Globalbottom 38% Funding: Raised $65.5M · 3 rounds over 3 yrs (1.0/yr) Talent: 2 named leaders on record · 2 C-suite/founder profiles curated rank vs industry peers · Fliar Intelligence Index 62/100 | $66M | 2 mo ago | Series C | Karan Kunjur Co-Founder | 2004 | WebflowAmazon Web ServicesGSAP+13 | — | 1 expansion |
| 2 | JetZero Governmental organization for airlines and efficient jets 60Innovation top 13%Patents top 22%Funding top 32%Talent top 38% All 11 signals ▾Innovationtop 13% Patentstop 22% Fundingtop 32% Talenttop 38% Moattop 41% Newstop 44% Partnerstop 45% Growthbottom 47% Marketbottom 41% Techbottom 36% Globalbottom 31% Innovation: 112 patents (top 17% of patent-holders) · 112 filings since 2022 vs 0 in 2017-21 Patents: 112 patents matched (strict assignee match) · 112 filings since 2022 vs 0 in 2017-21 rank vs industry peers · Fliar Intelligence Index 60/100 | $31M | 5 mo ago | Series B | Tom Leary Co-Founder & CEO | 2020 | HubSpot CMS HubApple iCloud MailMicrosoft 365+11 | 112 patents Design and manufacture of blended‑wing‑body aircraft with carbon‑fiber structures and integrated propulsion. | 1 partnership · 1 expansion · 2 awards |
| 3 | Giga-tronics Provider of advanced test and measurement solutions for electronic warfare and radar applications | $17M | 40 mo ago | Public | Darrell S Deputy CEO | 1980 | WordPressMySQLPHP+17 | — | — |
| 4 | General Autonomy Manufacturer of aerospace components and integrator of data fusion and sensing | $3M | 31 mo ago | Seed | Ehab Elsonbati CTO & Director | 2013 | UbuntuBootstrapNginx+1 | — | — |
| 5 | Pacific Science & Engineering Group, Inc. Pacific Science & Engineering specializes in human factors engineering, ergonomics, and human system… | $3M | 59 mo ago | Funding Raised | — | 1984 | — | — | 2 job openings |
| 6 | Aerhart Provider of advanced technological solutions for the aerospace and defense industries | $550K | 15 mo ago | Funding Raised | Kevin Burns Founder | 2017 | — | 9 patents Air‑breathing electric propulsion and VTOL/folding‑wing aircraft structural technologies | — |
| 7 | Navier Provider of aerospace engineering and mechanical services 50Patents top 30%Growth top 35%Innovation top 36%Talent top 38% All 9 signals ▾Patentstop 30% Growthtop 35% Innovationtop 36% Talenttop 38% Techtop 40% Fundingtop 47% Moatbottom 49% Globalbottom 37% Marketbottom 16% Patents: 15 patents matched (strict assignee match) · 12 filings since 2022 vs 3 in 2017-21 Growth: Fresh capital in last 24 mo rank vs industry peers · Fliar Intelligence Index 50/100 | $500K | 6 mo ago | Seed | Evan Kay Co-Founder | 2023 | Tailwind CSSReactReact Router+9 | 15 patents Adaptive, energy-aware software-defined networking and network management solutions | — |
| 8 | Exquadrum Provider of space launch vehicle design | $480K | 191 mo ago | Acquired | Kevin Mahaffy Co-Founder & CEO | 2002 | WordPressApple iCloud MailMySQL+19 | 19 patents Patents concentrated in mechanical & energy engineering | 3 job openings · 1 partnership |
| 9 | Swift Engineering Developer of technologies for unmanned aerial systems and components | $150K | 57 mo ago | Acquired | Rick H CEO | 1983 | WordPressMySQLPHP+12 | — | — |
Top 12 Aerospace Engineering and Design Services companies in California
#1
K2 Space 🦄Series C · Los Angeles, California · founded 2004$65.5Mraised▾
Provider of aerospace hardware products designed services
#2
Series B · Long Beach, California · founded 2020 · 75 employees$31Mraised▾
Governmental organization for airlines and efficient jets
- Jan 2026Series B$175M
- Apr 2025Series A—
- Jan 2025Grant (prize money)$8M
- Aug 2024Series A—
#3
Seed · San Francisco, California · founded 2023$500Kraised▾
Provider of aerospace engineering and mechanical services
#4
Funding Raised · Malibu, California · founded 2017$550Kraised▾
Provider of advanced technological solutions for the aerospace and defense industries. It specializes in developing and delivering sophisticated systems and components. These offerings support various applications, including communication, navigation, and surveillance. The company focuses on engineering excellence and precision manufacturing to meet stringent industry requirements.
- Feb 2025Grant (prize money)$275K
- May 2024Grant (prize money)$275K
#5
Public · Dublin, California · founded 1980$17.1Mraised▾
Provider of advanced test and measurement solutions for electronic warfare and radar applications. It offers high-speed signal generators, microwave components, and complete test systems. These solutions aid in resolving complex challenges in radar and electronic warfare development. Product lines include advanced signal generation and analysis platforms, real-time threat emulation systems, and specialized components. The company's offerings support the entire testing lifecycle, from benchtop to field environments.
- Jan 2023Post IPO$3.3M
- Apr 2021Post IPO$1.5M
- Mar 2020Post IPO$550K
- Dec 2019Post IPO$3.4M
#6
Seed · Palo Alto, California · founded 2013$3Mraised▾
Manufacturer of aerospace components and integrator of data fusion and sensing. The company delivers operational and intelligence-based solutions to security and advanced technology systems manufacturers. It provides solutions to U.S. Government customers.
- Nov 2023Seed$3M
#7
Funding Raised · San Diego, California · founded 1984 · 70 employees$2.9Mraised▾
Pacific Science & Engineering Group is a small business headquartered in San Diego, California. Since our start in 1984, we have specialized in human factors engineering, ergonomics, and human systems integration for complex military and commercial systems. We create prototyped products in addition to delivering exceptional services.
- Jun 2021Grant (prize money)$200K
- Jun 2020Grant (prize money)$2.5M
- Aug 2013Grant (prize money)$154.8K
#8
Acquired · Adelanto, California · founded 2002$480Kraised▾
Exquadrum is a provider of space launch vehicle design. The company offers space launch vehicle design, propellant development, gas-generator design, propulsion system testing, test facility design, non-lethal munitions development, and development of systems to neutralize chemical and biological weapons. It can be used in the air force, the missile defense agency, and the Defense threat reduction agency.
- Jul 2010Grant (prize money)$200K
- Jun 2010Grant (prize money)$200K
- Apr 2008Grant (prize money)$80K
#9
Acquired · San Clemente, California · founded 1983 · 124 employees$150Kraised▾
Developer of technologies for unmanned aerial systems and components. The company has developed Swift KillerBee products that consist of a 10-ft. wingspan, 15-hour endurance, and can carry a 60-lb payload. It has also developed the Swift020 Unmanned Air System (UAS) that consists of fixed-wing forward flight, and to reduce operational time and cost. It can be used in oil and gas, maritime, emergency services, delivery, agriculture, scientific research, surveillance, and military/defense markets.
- Sep 2021Grant (prize money)$150K
#10
Seed · San Francisco, California · founded 2013$20Kraised▾
Offers aerospace designing and engineering services
- 2023Seed$20K
- Jun 2020Grant (prize money)$199.9K
#11
Seed · San Francisco, California · founded 2022—raised▾
Developer of an air-breathing fusion engine designed to replace the chemical energy in jet fuel for true zero-emissions long-haul flights.
#12
Acquired · Hawthorne, California · founded 1957 · 36 employees—raised▾
Provider of aerospace engineering and design services
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Aerospace Engineering and Design Services coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
Common questions
Rohit lives in the feed. He covers what's moving right now — the funding rounds, launches and shifts breaking across the trade press — and ties them back to where the sector is heading.