SDR vs BDR: Key Differences & Who to Hire for Your GTM Strategy

SDR vs BDR comes down to where the lead starts. A Sales Development Representative (SDR) qualifies inbound demand, such as demo requests and trial sign-ups, and books meetings for Account Executives. A Business Development Representative (BDR) creates pipeline from scratch through cold calls, email and LinkedIn. Pay, profile and team structure follow from that split. Your first hire depends on whether your growth problem is converting existing interest or creating new interest. 

Key Takeaways

  • SDRs turn inbound interest into qualified meetings, while BDRs generate outbound pipeline from cold accounts.

  • Hire an SDR first when inbound volume outpaces your AEs, and a BDR first when you need to open a new market.

  • A first-year BDR in the Netherlands earns a median of €42k base and €54k OTE.

What Is the Difference Between an SDR and a BDR?

The core SDR vs BDR difference is the lead source. SDRs work leads that have already raised a hand, qualify them fast, and pass sales-ready conversations to an Account Executive. BDRs choose target accounts and start conversations with people who have never heard of you. In ZoomInfo's words, SDRs qualify inbound demand, BDRs create outbound pipeline (1).


SDR

BDR

Lead source

Inbound: demo requests, trials, events

Outbound: named target accounts

Daily work

Fast follow-up and qualification

Research, cold calls, email and LinkedIn sequences

Core skill

Discovery and speed to lead

Resilience and creative prospecting

Main metric

Qualified meetings from inbound

Meetings and pipeline from cold accounts

Why Do SDR and BDR Titles Blur in Practice?

In European SaaS, the labels rarely stay clean. One of our live founding BDR roles at an Amsterdam fintech covers inbound follow-up as well as outbound prospecting, while an enterprise SDR vacancy in Mechelen states outright that it is not a classic SDR role.

Smaller teams merge the roles because they cannot yet afford two specialisms, so the BDR vs SDR difference matters less than the split of work in your vacancy. State the inbound and outbound ratio and the channels, then avoid the three mistakes we see in sales vacancies every week.

Should You Hire an SDR or a BDR First?

Hire an SDR first if marketing generates more demo requests than your Account Executives can follow up within a day. Hire a BDR first if inbound is thin, and check how to build a high-performing SaaS sales team from scratch to see where either role fits in your hiring order. These signals point to a BDR:

  • Your ideal customers fit on a list of a few hundred named accounts

  • You are launching in the Benelux or DACH without local brand awareness

Market entry is the classic BDR case. When UK-based Clarus expanded into the Benelux without native Dutch speakers, it hired two Dutch-speaking BDRs through Katapult. For outbound, language and local credibility matter more than tooling.

How Is AI Changing the SDR vs BDR Choice?

AI is taking over the repetitive part of outbound, shifting the value of both roles towards qualification. Postal, a US SaaS vendor, removed its outbound SDRs in 2024 and kept humans only for qualification. We cover the full case in how AI will change how your sales team is structured.

For hiring, screen SDR and BDR candidates on discovery skills and commercial judgement rather than activity volume. AI can already write the first email, but it cannot yet judge whether a prospect is worth an AE's time. 

What Do SDRs and BDRs Earn in the Netherlands?

Both roles sit in the same pay band. Katapult's SaaS salary benchmarks 2026, based on 250+ sales professionals, report these Dutch figures:

  • BDR, 0 to 12 months: €36k to €50k base, €42k to €68k OTE

  • Senior BDR, 12 to 24 months: €42k to €54k base, €54k to €80k OTE

The benchmark uses the BDR title only, but SDR vacancies land in the same range. Our enterprise SDR vacancy in Mechelen, for example, offers €45k to €60k base plus a €22k bonus.

Still weighing SDR vs BDR for your next hire? Book a call with a Katapult consultant and get a clear role scope plus up to four vetted candidates.

FAQ - Frequently asked questions about key differences between SDR vs BDR

Is an SDR or a BDR more senior?

Neither title is more senior by default. Both are entry points into SaaS sales, and the usual next step is an Account Executive role. Katapult's salary benchmarks treat reps with 12 to 24 months of experience as senior BDRs, with pay rising to match.

What should an SDR or BDR interview include?

A realistic role play: a cold call opener for BDRs and a discovery call on an inbound demo request for SDRs. Before working with Katapult, SoSafe saw many Dutch candidates fail at the role play stage, so test selling early. How to hire salespeople covers the full interview process.

How long does it take to hire an SDR or BDR?

Katapult introduces the candidate its clients end up hiring in 8 business days on average. Add notice time: an employee leaving a permanent Dutch contract usually gives one month's notice, so plan for around six weeks until the first working day.

Sources

  1. ZoomInfo Blog, "SDR vs BDR: Key Differences, Roles, and When to Hire", 9 July 2026, pipeline.zoominfo.com