An RFQ sent to a job shop and an RFQ sent to a contract manufacturer can look nearly identical on paper — quantity, spec, delivery date — and still lead to a genuinely different conversation, because the two are built around different relationships to your business. Knowing which one you're actually sourcing from changes what's worth specifying up front.
Job shops: transactional, job-by-job
A job shop typically runs a wide mix of parts for many different customers, priced and scheduled job by job. The relationship is usually transactional by design — you send an RFQ, they quote it against their current capacity, you award or you don't, and the next job is its own decision. There's rarely a standing commitment on either side.
What matters most in the RFQ: precision on spec and tolerance, since you're often one of many customers competing for the same shop floor time, and an ambiguous drawing is more likely to get interpreted generically rather than clarified with a phone call. Clear quantity breaks matter too — job shops price marginal capacity, so knowing your real order range up front gets you a more accurate number.
What to watch: capacity volatility. A job shop's lead time on your part depends heavily on what else is on their floor that month, which is exactly why tracking actual delivered lead time against quoted lead time matters more here than with a dedicated contract manufacturer — the gap between the two tells you how much buffer to build into future schedules with them.
Contract manufacturers: relationship-based, often longer horizon
A contract manufacturer relationship usually implies more standing commitment — forecasted volume, sometimes dedicated capacity or tooling, a longer-term view on both sides. The RFQ here is often less about testing the market on a single job and more about establishing or confirming terms for an ongoing relationship.
What matters most in the RFQ: volume forecasting and payment terms matter more than they do with a one-off job shop order, because you're implicitly asking the CM to plan capacity around your business, not just slot a job into open time. Being vague about expected ongoing volume makes it harder for them to price accurately or commit capacity.
What to watch: over time, less about quote-to-quote comparison and more about whether the relationship is actually delivering the consistency it's supposed to — on-time rate, quality consistency, responsiveness to changes — since the whole point of a CM relationship is usually reducing the RFQ-every-time overhead a job shop model carries.
Most shops use both, and that's fine
None of this means picking one model — most small and mid-size manufacturers run a mix: a core set of contract manufacturer or long-term supplier relationships for steady volume, and a rotating bench of job shops for overflow, specialty processes, or one-off jobs. The point isn't choosing a lane. It's recognizing which lane a given RFQ is in, so you specify the right things and set the right expectations for that relationship.
Either way, the underlying need is the same: a record of what you asked for, what came back, and how it actually performed — whether that RFQ went to a job shop you use twice a year or a CM you're building a five-year relationship with. RFQTrace handles both the same way: structured RFQs, comparable quotes, and a performance history that builds automatically. Start a free 60-day pilot.