# Business development for engineering and manufacturing recruiters

> Plant managers, temp agencies, job shops: who decides in manufacturing, where the hiring pain is, which objections to expect, and a message that gets read.

By Franck Durandot, founder of Odyn. Updated October 20, 2026.

Engineering and manufacturing recruiters win clients by writing to the plant manager, the director of engineering or the owner of a mid-sized manufacturer, not to HR, about salaried roles that a temp agency does not fill. The pitch that works is direct sourcing: you approach the maintenance manager or quality engineer who is already employed three counties over and never reads a job posting. The need is not in doubt. Deloitte and The Manufacturing Institute estimate that U.S. manufacturing may need up to 3.8 million net new workers between 2024 and 2033, and that up to 1.9 million of those jobs could go unfilled if skills and applicant gaps persist ([press release, April 2024](https://www.prnewswire.com/news-releases/us-manufacturing-could-need-as-many-as-3-8-million-new-employees-by-2033--according-to-deloitte-and-the-manufacturing-institute-302105892.html)).

## Where does a plant actually feel the pain?

Not only on the shop floor. Production and technician work gets filled, or does not, through apprenticeships, community colleges and temp agencies. What a recruiting firm sells is the salaried role that leaves a line without an owner: a reliability engineer, a controls engineer who integrates new equipment, a quality manager before an audit, a maintenance manager when the incumbent retires.

The Bureau of Labor Statistics shows why those roles stay open. It projects mechanical engineering employment to grow 11 percent from 2025 to 2035, against 3 percent for all occupations, with about 17,800 openings a year and a median wage of $104,110 in May 2025. It attributes the growth to automation and to more complex equipment that engineers must integrate into existing systems, and most of the openings to people leaving the occupation or retiring ([BLS Occupational Outlook Handbook](https://www.bls.gov/ooh/architecture-and-engineering/mechanical-engineers.htm)). Retirement is the quiet driver. A plant that loses a 30-year maintenance manager does not lose one person; it loses the memory of every machine.

## Who owns the hire at a plant?

At a mid-sized manufacturer, usually the plant manager or the owner, and the two are often the same person. They decide fast, pick up the phone, and have rarely worked with a recruiter; your first job order is a first.

At a multi-site company, the plant manager defines the need and knows the role better than anyone, but corporate HR or procurement may keep a preferred vendor list. Write to the plant manager to understand the role, then ask how a firm gets onto the list. A cold email to HR asking to be added rarely goes anywhere.

For engineering roles, the buyer is the director of engineering or the VP of operations, who needs the engineer to ship.

Across the 2,000-plus decision-makers Odyn contacted between June and September 2026, operational leaders and owners gave roughly four times as many interested replies as in-house recruiters, who more often decline on principle. That data comes mostly from French postings, but the logic carries over, and we go through it in [finding the hiring decision-maker](https://www.odynagent.com/en/resources/finding-the-hiring-decision-maker).

## What is the competition: temp agencies, job shops, or the in-house team?

Three competitors, and they sell different things.

Staffing agencies sell labor. According to the American Staffing Association, industrial work is the largest occupational group in staffing, at 36 percent of staffing employees, and engineering, IT and scientific roles together only 11 percent ([ASA staffing industry statistics](https://americanstaffing.net/research/fact-sheets-analysis-staffing-industry-trends/staffing-industry-statistics/)). Note that "industrial" there also covers warehouse and logistics work. A plant that has a staffing agency has a line operator pipeline, not a plant manager one.

Contract engineering firms, the job shops, sell an engineer by the hour for the length of a project. When the work is a 12-month redesign, a contract engineer is often the right answer and you will not win that argument. Your role is the one that needs to stay.

The third competitor is the plant's own recruiter and its employee referrals. Postings that mention a talent acquisition team, an exempt-level role or a global footprint are where we see most of the "we already work with a firm" replies.

## What do you say to "we use staffing agencies" and "we promote from within"?

You agree first. Both are right for most of the jobs in the building.

"We use staffing agencies." Fine for operators and a seasonal surge. Ask who covers the maintenance manager job posted two months ago. Almost always the answer is nobody.

"We promote from within." It is a sound habit, and it works when there is a number two. Ask what the plant does if the person it would promote is also the one it cannot lose. A bench of one is not a plan.

"HR handles recruiting." Then ask who in HR owns the role, and whether the plant manager can join a short call. The hiring manager knows what the job really needs, and HR will want to hear it from the person who will work with the hire.

## Where do manufacturers post?

On their own career pages, on Indeed, on LinkedIn for engineers and management roles, and with regional workforce boards. A good share of small plants post little or nothing and hire by referral, which means that any prospecting method built on postings will not see them. Among the postings that are visible, the employers that had a single posting online across two months gave roughly three times as many interested replies as other employers. A plant that opens a maintenance manager role once every few years is a better prospect than a group that hires all the time; the measurements are in [prospecting companies that are hiring](https://www.odynagent.com/en/resources/prospecting-companies-that-are-hiring).

## What message works with a plant manager?

Short, specific, and in the language of the plant. A role, a facility, a standard the role must meet, and a request to understand the job rather than to send resumes.

> Subject: Quality manager at your Wichita plant
>
> Hi Dana,
>
> I saw your Wichita facility is hiring a quality manager with AS9100 experience. I place quality and manufacturing leaders in aerospace suppliers across Kansas and Oklahoma.
>
> A few of them are employed and not looking at job boards. I can approach one or two quietly, without naming your company.
>
> Do you have ten minutes Thursday so I can understand what the role has to deliver before your next audit?

The audit reference does the work: it shows you know what a quality manager is for. The full structure, with follow-ups, is in [a business development email for recruiters](https://www.odynagent.com/en/resources/recruiting-business-development-email).

## When do plants hire?

Less seasonal than construction, driven by three things. Many plants shut down for a week around July 4, and the maintenance work scheduled for that shutdown assumes a maintenance manager is already in the seat, so searches open in spring. Headcount is usually approved at the start of the fiscal year, which makes January through March a good time to talk. And a rising backlog triggers hiring a few months later: writing to the plant that just announced a new line gets you in front of other firms. We have no month-by-month measurement; this is how the cycle works in practice. Construction runs on a different clock, which [the page for construction recruiters](https://www.odynagent.com/en/resources/business-development-for-construction-recruiters) covers.

## How Odyn fits

Odyn, the AI prospecting agent for recruitment firms, reads the job postings that match your target: your roles, your regions, your industries (aerospace, plastics, food processing). It filters out postings published by staffing agencies and recruiting firms, so you do not write to a peer. It looks for the person who decides the hire rather than a generic HR address, drafts the message from the posting and your specialty, and sends it from your own email and LinkedIn account. When a decision-maker accepts your LinkedIn invitation, it suggests that you call, and it stops as soon as someone replies. With Push CV, in beta, you upload the resume of an employed maintenance manager: Odyn anonymizes it and presents it to decision-makers whose postings fit. The details are in [the AI prospecting agent guide](https://www.odynagent.com/en/resources/ai-prospecting-agent-for-recruiters) and on the [pricing page](https://www.odynagent.com/en/pricing). For the general method, see [how to get clients for a recruitment agency](https://www.odynagent.com/en/resources/how-to-get-clients-for-a-recruitment-agency).

## Frequently asked questions

### Can a generalist firm prospect manufacturing?

Yes, if it learns the vocabulary first. A plant manager spots in one line a message that confuses maintenance with quality. Pick two or three functions and one industry before widening.

### Is an engineering services firm that is hiring a prospect?

Yes. When it recruits its own engineers it is an employer like any other, even though it sells engineers to others. It may well have its own recruiters, which changes the tone of your message but not the target.

### Can I approach a plant that has not posted anything?

By hand, yes. The usual buying signals, such as a funding round or a new executive, did not predict anything clear in our data, as explained in [recruitment agency business development](https://www.odynagent.com/en/resources/recruitment-agency-business-development). A posting remains the best starting point.

### Should I call or email first?

Email or a LinkedIn note first, then a call. Plant managers are often on the floor, so offer a time and say you will call back at whatever hour suits them.

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Odyn, the AI prospecting agent for recruitment agencies. Book a demo : https://www.odynagent.com/demo
Updated October 20, 2026. Page : https://www.odynagent.com/en/resources/business-development-for-engineering-recruiters