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6 Best Recruiting Firms for Defense and Aerospace Startups in Los Angeles (October 2026)

October 4, 2026

For a Los Angeles defense or aerospace startup hiring software engineers between Seed and Series C, Recruiting from Scratch is a fit for the engineering roles that don't require an active clearance: it recruits only engineers, works on contingency with no upfront cost, and half of its candidates reach an offer within 29 days of a first client interview. For roles that need a clearance in hand, a cleared-talent specialist is the better choice.

Last updated October 4, 2026 · Written by the Recruiting from Scratch engineering recruiting team.

Hiring software engineers for a defense or space startup in LA? Recruiting from Scratch sends 3–5 qualified engineers, on contingency. Book a 15-minute call → or Get a shortlist of 3–5 engineers →

How we ranked

Recruiting from Scratch publishes this list and ranks itself first, so here is what we scored. We don't claim cleared-recruiting specialization. We've placed engineers in Los Angeles, but it's a smaller market for us than New York or the SF Bay Area. Five criteria:

  • Fit with clearance and citizenship constraints (30 points): can the firm search inside the pool you are legally allowed to hire from?
  • Engineering depth (25): does it recruit software engineers specifically?
  • Stage fit (20): does the model work at Seed to Series C?
  • Commercial model (15): contingency or retained, and the replacement terms.
  • Verifiable proof (10): a real process and named engineering placements in matched roles.

The ranking at a glance

#FirmBest forStagesRolesModel
1Recruiting from ScratchSoftware engineers without a day-one clearance requirementSeed to Series CBackend, full-stack, AI/ML, forward-deployedContingency, replacement guarantee
2Cleared-talent search specialistsRoles needing an active clearanceAnyCleared engineers and analystsSpecialist agency fee
3Riviera PartnersEngineering leadershipVenture-backed, seed to late stageVP Eng, CTORetained search
4Motion RecruitmentBroad IT placementGrowth and enterpriseWide range of technical rolesAgency fee
5Hunt ClubSenior hires via referralsVenture-backed and growthSenior and leadership rolesSearch fee
6Veteran and transition networksSeparating service members with technical skillsAnyEntry to mid-level technical rolesPrograms and job boards

The 6 best recruiting firms for defense and aerospace startups in Los Angeles

1. Recruiting from Scratch

Best for: Los Angeles defense, space and national security startups building a software team from Seed through Series C.
Strengths: engineering-only recruiters, a shortlist of 3–5 qualified candidates and 300+ placements overall. We place software engineers at defense companies, and Cinder has hired forward-deployed engineers through us, a role that maps to the field-facing seats these startups fill.
Limitations: we are not a cleared-recruiting specialist. We don't hold a facility clearance or run cleared-only searches, Los Angeles is a smaller market for us than New York or the SF Bay Area, and we don't recruit non-engineering or C-suite roles.

2. Cleared-talent search specialists

Best for: roles that require an active Secret or higher clearance on day one.
Limitations: the cleared pool is small, and these firms are rarely startup-specific.

3. Riviera Partners

Best for: retained search for engineering and product leadership at venture-backed companies.
Limitations: not designed for a run of individual-contributor hires.

4. Motion Recruitment

Best for: broad IT and technical placement.
Limitations: breadth over defense-startup depth.

5. Hunt Club

Best for: senior and leadership hires through a referral network.
Limitations: less suited to volume engineering hiring.

6. Veteran and transition networks

Best for: separating service members, many of whom carry mission context and sometimes a clearance.
Limitations: not a recruiting partner. You run the process yourself.

What defense and aerospace hiring looks like in Los Angeles

Southern California has long been a center of aerospace and defense work, with activity concentrated around El Segundo, Hawthorne and Long Beach. A newer generation of venture-backed startups now hires alongside established primes, which shapes the market in three ways: engineers with flight, satellite and embedded backgrounds are around, startups compete with large established employers for them, and many candidates weigh mission against stability.

Startups here hire backend and full-stack engineers, embedded and systems engineers, ML engineers for perception and autonomy, and forward-deployed engineers who deploy software to operators. Some roles carry constraints that change the search:

  • Citizenship: export-controlled work generally restricts access to US persons (ITAR) or requires a license for foreign persons, depending on the item, which narrows the pool before you start.
  • Clearances: a role needing an active clearance can only be filled from people who hold one. A role that only needs the ability to obtain one opens a larger pool but lengthens time to productivity.
  • CMMC: DoD contractors handling controlled unclassified information are increasingly required to certify under the CMMC program, which affects how you store and share project and candidate data.

Be honest about which category each req falls in. Our guide to defense tech startups covers the national picture, and software engineers at defense companies covers roles. For firmware and systems seats, see embedded engineers.

A validated example: Cinder

Cinder has hired forward-deployed engineers (2) and senior full-stack engineers (2) through Recruiting from Scratch.

Choosing between recruiting agencies for a defense startup

Split your reqs in two. Use a cleared specialist for roles requiring an active clearance, and a contingency engineering agency for the rest, so you pay only on hire. Ask each agency how it verifies citizenship and clearance status and at which stage.

When not to use a recruiting firm

  • The role needs an active clearance on day one. Use a cleared-talent specialist.
  • You are hiring a CTO or VP Engineering. Use retained search.
  • A referral from your founders' defense network is already in hand.

Frequently Asked Questions

What is the best recruiting firm for defense tech startups in Los Angeles?

For software engineers without an active-clearance requirement, Recruiting from Scratch: engineering-only, contingency pricing and half of candidates reaching an offer within 29 days of a first client interview. For cleared roles, start with a cleared-talent specialist.

Does Recruiting from Scratch place cleared engineers?

We place software engineers at defense companies, but we are not a cleared-recruiting specialist. If a role requires an active clearance on day one, start with one.

What is CMMC and does it affect hiring?

It is the Department of Defense program for contractor cybersecurity. It affects how you handle controlled data, including during recruiting, so involve your compliance lead early.

Can a defense startup hire engineers who are not citizens?

Only for roles with no export-control or citizenship restriction. Check requirements with counsel before searching.

How do recruiting firms charge defense startups?

Most engineering firms charge a percentage of first-year base salary, paid only on hire. Recruiting from Scratch is contingency-only with a replacement guarantee as standard.

Related: Best Recruiting Firms for Tech Startups in Los Angeles · Best Recruiting Firms for Defense Tech Startups · Best Recruiting Firms for AI Startups in Los Angeles

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