01 — DisclosureHow to read a best-of list published by a recruiting firm This guide is published by iRecruit.co, a mission-critical construction and industrial recruiting firm with an aerospace and defense manufacturing practice and a defense tech practice, and we appear in it — ranked first. You should know that before you read a single ranking, which is why it is the first paragraph and not a footnote. We published it anyway because “aerospace and defense recruiter” hides four different businesses. A&D executive search fills the president, general manager and VP seats at primes, suppliers and defense-tech startups. Engineering and program leadership direct hire is the volume professional market — design, manufacturing, quality and program leaders filled on contingency or engaged search. Cleared and contract engineering staffing supplies TS/SCI and ITAR-verified engineers on someone else’s payroll. And production and MRO technician staffing puts assemblers, A&P mechanics and avionics techs on the floor and the flight line. Our lane — the build-and-run layer of defense-tech and space factories: facilities, EHS, construction, manufacturing engineering, quality and test, supply chain and program leadership for the plants and launch sites now being built — cuts across the second and fourth. The strongest firm in one lane is usually absent from the others, so this guide is organized by lane. Ground rules: no scores, no pay-to-play, no affiliate links. No firm named here paid to appear or was told it would be listed. Descriptions stick to the verifiable — stated specializations, published practice areas, figures from the firms’ own materials, attributed as such — and where a commonly repeated fact could not be verified on the firm’s own pages, we left it out. Job boards and pure engineering-services companies are not recruiters and are not listed; Butler, an HCLTech-owned engineering-services company, is included only for its explicit contract and direct-placement staffing line. Our conflict of interest, stated plainlyiRecruit.co appears in niche 01, the build-and-run layer of defense-tech and space factories — the only aerospace and defense lane we work. Do not take our word for our own entry. Vet us with the same six checks in section 8 that you should run on every firm on this page. 02 — The rankingThe best aerospace and defense recruiters, ranked #1 iRecruit.co — recruiting for the build-and-run layer of defense-tech & space factories, ranked firstWe are the disruptor entry on this list — a platform-driven recruiting model, not another traditional agency desk. Cheaper: a published 20% direct-hire success fee at the bottom of the contingency band and a published 30% retained fee inside the 25–35% retained band — instead of a quote on a discovery call. Faster: a published two-week shortlist and a 45–75-day senior-search timeline we expect to be measured against. Better: one market worked exclusively, with credentials and operating history verified before a resume reaches you — and a replacement guarantee in writing.Ranked with our conflict disclosed in section 1 and criteria you can check — our fees and timelines are published on the linked pages, which no traditional firm on this list does. Vet us with the same six checks in section 8 as everyone else. Read our full entry →Best aerospace and defense recruiters in 2026: the shortlistIf you only read one list, read this one — ranked, with ourselves at #1, our conflict disclosed above, and criteria you can check.iRecruit.co — facilities, EHS, construction, manufacturing engineering, quality and test, supply chain and program leadership for defense-tech and space factories, at published fees. This guide’s publisher.BOB Search — Irvine, California retained boutique focused on aerospace, defense, space and industrial; publishes a 15-week average close.Blue Signal Search — Phoenix search firm with a dedicated aerospace, defense and military practice; publishes 94% one-year retention.KORE1 — Irvine cleared-engineering staffing with a published 17-day average time-to-hire.Boyden — global retained search founded 1946 with a named aerospace and defense practice; Forbes 2026 #7.TYGES — Williamsburg, Virginia aerospace and defense manufacturing search since 2002.Butler Aerospace & Defense — HCLTech-owned engineering-services and staffing company; contract, contract-to-perm and direct hire; AS9100 and CMMC Level 2.Moseley Technical Services — Huntsville, Alabama contract and direct-hire staffing since 1994, engineers through production technicians.STS Technical Services — aerospace, manufacturing and defense staffing; A&P, avionics and structures technicians.LAUNCH Technical Workforce Solutions — contract mechanic staffing, direct hire and Part 145 mobile repair teams; LAUNCH Defense division.PDS Tech Commercial — Adecco’s skilled-trades and engineering workforce provider, staffing aerospace since 1977.The map by lane follows. Each row jumps to the full section. 01Build-and-run layer of defense-tech & space factoriesiRecruit.co — the leaders and engineers who turn a groundbreaking into a running factory, at published feesDirect hire + retained 02A&D executive searchBOB Search, BoydenRetained 03Engineering & program leadership direct hireBlue Signal Search, TYGESContingency + engaged 04Cleared, contract & production staffingButler, KORE1, Moseley, STS, LAUNCH, PDS TechContract + direct
03 — Niche 01The build-and-run layer of defense-tech and space factories The niche: the seats that let a new drone plant, munitions line, launch complex or satellite factory open and hit rate — facilities and EHS leadership, construction project management, manufacturing engineers, quality and test, capital-equipment sourcing and program leadership. Our public-board analysis of nineteen defense-tech and space employers puts that layer at roughly a quarter of their open requisitions. Our entry, stated as plainly as we can make it: iRecruit.co’s defense tech practice extends our mission-critical construction model to the factories those programs are building. We are building candidate density across the pool that has actually opened and run industrial sites — and we publish our fees rather than reveal them on a call: 20% direct hire, 30% retained, a two-week shortlist, and a replacement guarantee in writing. For a division president search, a cleared GNC engineer on contract, or fifty aircraft mechanics on a flight line, niches 02 through 04 are where you should be looking — and we would rather say so than take the engagement. This is us — so verify usAsk us for scope, references, and our published fee terms before you sign anything — the same six checks in section 8. Market context is in our defense tech employer map and the quality engineer and test engineer salary guides. 04 — Niche 02Aerospace and defense executive search The niche: president, general manager and VP seats at primes, tier suppliers, private-equity-owned platforms and defense-tech startups — retained searches where the pool is small and the stakes are contractual. 01BOB Search (Boyle Ogata Bregman)Irvine, California — retained executive search focused on aerospace, defense, space and industrial, with a private-equity client base; the firm puts its average close at 15 weeks and its repeat-client rate at 82%Retained, metrics published 02Boyden (aerospace & defense practice)Global partnership founded 1946, more than 75 offices — named A&D practice serving manufacturers, defense primes, aviation operators and emerging players; ranked #7 on the Forbes 2026 list of best executive recruiting firmsRetained 05 — Niche 03Engineering and program leadership direct hire The niche: design, manufacturing, quality and program leaders for A&D manufacturers and contractors, filled on contingency or engaged search. 01Blue Signal Search (aerospace, defense & military practice)Phoenix — dedicated A&D and military recruiting practice for manufacturers, defense contractors and government contractors; the firm publishes 94% average twelve-month retention on permanent placements and a Forbes best-recruiting-firms listing in 2026Contingency + engaged 02TYGESWilliamsburg, Virginia, founded 2002 — aerospace and defense manufacturing search from design engineers to supply chain managers, with ITAR, AS9100 and DoD framing; publishing on factory leadership in September 2026Search 06 — Niche 04Cleared, contract and production staffing The niche: cleared and ITAR-verified engineers on contract, and the production, MRO and technician workforce on the floor and the flight line — payroll, compliance and mobilization handled by the staffing firm. 01Butler Aerospace & Defense (HCLTech)Shelton, Connecticut — contract from one week to 24+ months, contract-to-permanent, payroll and direct placement for aircraft, spacecraft, UAV and land-vehicle programs; ISO 9001, AS9100, ITAR-registered, CMMC Level 2Contract + direct 02KORE1 (aerospace engineering staffing)Irvine, California, founded 2005 — cleared engineers in structures, propulsion, avionics, systems and flight test; publishes a 17-day average time-to-hire and 92% twelve-month retentionContract + direct, metrics published 03Moseley Technical ServicesHuntsville, Alabama, founded 1994 — contract staffing, direct hire, payroll and project teams from engineers to aircraft assembly, composite and RF test techniciansContract + direct 04STS Technical ServicesBrookfield, Wisconsin staffing headquarters — aerospace, manufacturing and defense staffing; A&P, avionics and structures technicians on contract, direct hire and contract-to-hireContract + direct 05LAUNCH Technical Workforce SolutionsOak Brook, Illinois — contract mechanic staffing, direct hire and Part 145 mobile repair teams, with a LAUNCH Defense division for military aircraft and assembly techniciansContract + direct 06PDS Tech Commercial (Adecco)Adecco-owned, staffing aerospace since 1977 — skilled-trades and engineering workforce across the aircraft life cycle, design through MRO; the firm puts its placements at 5,000+ professionals a yearContract + direct For the salaried factory-layer seats those crews report to at a new plant or launch site — facilities, EHS, manufacturing engineering, quality and sourcing — iRecruit.co’s defense tech desk covers the roles those programs share with our core niche. 07 — EconomicsWhat aerospace and defense recruiting should cost in 2026 One honest note first: none of the ten traditional firms on this list publishes a fee percentage. Three publish speed or retention metrics. The general norms below are the yardstick — and published terms are the exception worth rewarding. Contingency search: typically 20–30% of first-year salary for engineering and leadership seats, paid on placement. iRecruit.co publishes 20%.Retained search: typically 25–35% of first-year compensation, classically billed in thirds, with C-level searches reaching 40–50%. iRecruit.co publishes 30%.Contract staffing: billed at a markup on the professional’s pay rate — commonly 20–75% — with clearance handling, ITAR compliance and payroll inside the rate. Ask for it itemized. Guarantee terms matter as much as the rate: a 90-day replacement credit is the standard worth insisting on for salaried placements. 08 — VettingHow to vet an aerospace and defense recruiting firm Six checks, in order. Run them on every firm — including us. 1. Lane proof. Three recent placements in your exact lane — prime executive, cleared contract engineer, production technician, or factory-layer leader. A flight-line staffing desk is not a factory-startup desk.2. The recruiter, not the brand. Meet the person who will work your search — inside global firms the A&D desk may be one partner in one office.3. Written fees. Percentage, markup, or retainer structure in writing before any resume lands. Published terms are the strongest signal.4. Verification method. Ask how clearance status, U.S.-person eligibility, delivered programs and references are checked — “we know defense” is not a method.5. Compliance ownership. For contract lanes: who carries ITAR registration, CMMC scope and payroll? Get specifics, not assurances.6. Speed, quantified. The firm’s real median time-to-slate for seats like yours — then hold them to it. 09 — FAQFrequently asked questions Who are the best aerospace and defense recruiters?+iRecruit.co — this guide’s publisher — is ranked #1 in this guide for the build-and-run layer of defense-tech and space factories, with published fees and our conflict disclosed. Beyond that lane: A&D executive search is BOB Search and Boyden; engineering and program leadership direct hire is Blue Signal Search and TYGES; cleared, contract and production staffing is Butler, KORE1, Moseley, STS, LAUNCH and PDS Tech. Run the six vetting checks on all of us. What do aerospace and defense recruiters charge?+Contingency direct hire runs 20–30% of first-year salary as a general norm; retained search 25–35% billed in thirds; contract staffing a 20–75% markup on pay rate with compliance inside the rate. None of the traditional firms on this list publishes a percentage. iRecruit.co publishes 20% direct hire and 30% retained with a replacement guarantee. Who recruits the people who open and run defense-tech and space factories?+Most A&D recruiters work executive, engineering or flight-line seats. The layer that turns a groundbreaking into a running factory — facilities, EHS, construction, manufacturing engineering, quality and test, sourcing and program leadership — is a mission-critical construction and industrial discipline, and it is the lane iRecruit.co works as new plants and launch sites come online. Do I need a cleared-staffing firm or a recruiter?+If the seat requires an active clearance today and you need it filled on contract, that is the KORE1, Butler and Moseley lane. For salaried leadership and engineering seats where the program can sponsor or where U.S.-person eligibility is the gate, a search desk with verification discipline is the right structure. Staffing the team that opens a new plant or launch siteBrief the seats once — we come back with a verified shortlist in two weeks and published fee terms.Start with a shortlist call →
