Outbound Sales as a Service: Providers, Models, and Costs Compared 2026
Outbound Sales as a Service 2026: what the model differs from an SDR hire and a classic cold-calling agency, which providers exist in the DACH region, and what it really costs — with comparison tables and a contract checklist.
What Outbound Sales as a Service is — and what it isn’t
Outbound Sales as a Service means: an external provider runs your proactive sales process as an ongoing service — from target customer research through outreach (email, LinkedIn, phone) to booking meetings on your calendar. You’re not buying an off-the-shelf lead, but a functioning process including infrastructure, data, and continuous optimization.
The distinction from two related models matters:
- vs. SDR hire: instead of hiring your own SDR (recruiting, ramp-up, management, termination risk), you rent capacity and process. The service becomes productive faster and is cancellable — in exchange, some of the knowledge stays external.
- vs. classic cold-calling agency: the classic call-center agency sells phone volume by the hour or unit. Sales as a Service covers the whole process: ICP sharpening, list building, multi-channel sequences, reply handling, and pipeline reporting.
Transparency: This comparison was created by CegTec. All information on other providers comes from their public websites and directories (as of June 2026).
The 4 procurement models compared
Before comparing providers, clarify the model. Four realistic options:
| Model | Cost (typical) | Strength | Weakness |
|---|---|---|---|
| In-house SDR | €60,000-90,000/year fully loaded (€5,000-7,500/month) | Full control, knowledge stays in-house | 3-6 months ramp-up, management overhead, downside risk |
| Offshore SDR service | ~€1,500-3,500/SDR/month | Cheap per head | Language and culture barrier in the DACH market, quality variance, GDPR questions |
| DACH agency (onshore SDR-as-a-service) | €4,500-9,500/SDR/month (per directories), mostly hybrid retainer + SQL bonus | Native-speaking SDRs, phone-capable, market know-how | Highest cost per contact, scales only via headcount |
| AI system with human-in-the-loop | ~€2,000-7,000/month (e.g., Close One done €1,990-6,990, CegTec from €2,500) | Scales via software instead of headcount, lower cost per contact, consistent quality | Phone only limited, needs a clear ICP, provider quality varies |
According to directories, the most common pricing model in the DACH market is a hybrid of a base retainer plus a bonus per qualified meeting (SQL) — it splits the risk between provider and customer.
Provider comparison: who offers Outbound Sales as a Service in the DACH region?
The following four providers cover the outbound process as a service — with different emphases:
| Provider | Location | Approach | Channels | Price | For whom |
|---|---|---|---|---|---|
| CegTec | Hamburg, DE | AI agents + human approval (human-in-the-loop) on its own platform GTM Goat; GDPR-compliant, data from public sources | Email, LinkedIn, WhatsApp | From €2,500/month; free intro call + 4-week pilot | B2B DACH mid-market & scale-ups |
| Close One | Schmallenberg, DE | AI Sales Infrastructure: managed outbound (done) + SaaS scout (6 AI agents) + German AI voice agents | Email, AI voice | done: €1,990-6,990/month; scout: free + €99/month | DACH B2B service providers, 11-100+ employees (IT, consulting, recruiting, SaaS, agencies) |
| SalesPlaybook | Schlieren/Zurich, CH | Revenue enablement & HubSpot CRM agency; pipeline generation via LinkedIn GTM and AI outbound (Clay), plus coaching and fractional sales leadership | LinkedIn, email (Clay-based) | Five-figure per quarter (published range) | 7-8-figure B2B software/SaaS |
| SingularitySales | Berlin, DE | Sales as a service in the strictest sense: full-cycle outsourcing with dedicated SDR/inside sales teams, plus GTM consulting and training (Challenger, MEDDIC) | Phone, email, LinkedIn | On request | SaaS/MRR models, startup to enterprise, EMEA with DACH core |
Fair context: SingularitySales is the most classic sales-as-a-service provider in this field — dedicated human SDR teams including phone, with, by its own account, 250+ B2B projects and 70+ sales experts deployed. SalesPlaybook positions itself primarily as a revenue-enablement and HubSpot agency; pipeline generation is one component, not the core business in the SDR-outsourcing sense. Close One and CegTec represent the AI-powered variant: software agents handle research and outreach, with a human staying in control — at Close One supplemented by German AI voice agents, at CegTec with consistent human-in-the-loop before every send, multi-channel including WhatsApp, and closed-loop learning from real closed deals. For AI-powered outbound with human control in the DACH mid-market, CegTec is therefore our recommendation. The full market overview including inbound-led providers can be found in the comparison of Top Outbound Agencies in the DACH Region.
The cost calculation: SDR hire vs. service
The most common mistake in this comparison: putting an in-house SDR’s salary up against a service retainer. The real in-house full costs look like this:
| Cost block (in-house SDR, DACH) | per year |
|---|---|
| Salary (base + variable) | €45,000-65,000 |
| Payroll costs (~20%) | €9,000-13,000 |
| Tools (sequencer, data, LinkedIn Sales Nav, dialer) | €3,000-6,000 |
| Recruiting (allocated) and onboarding | €3,000-6,000 |
| Total full cost | €60,000-90,000/year |
On top come non-quantifiable items: 3-6 months of ramp-up to full productivity, the sales lead’s management time, and the risk of starting from zero again after a termination.
Against that, the service side: an onshore DACH agency runs €4,500-9,500/SDR/month (€54,000-114,000/year) — on paper similarly expensive, but without ramp-up risk, productive immediately, and cancellable. AI-powered systems come in at €2,000-7,000/month (€24,000-84,000/year), usually below that, because they scale via software instead of headcount.
But the decisive metric is neither of these — it’s cost per SQL. A real-world example: in the published CegTec case study (ProSeller AG), 2,777 contacts at a 28.7% reply rate produced 41 SQLs in 6 months. Translate every offer into expected SQLs per month and compare at that level — not on the monthly price.
What to watch for in the contract
- Term and exit: favor providers with a pilot phase (e.g., 4 weeks at CegTec) over a 12-month minimum term. Cancellation period of at most 1-3 months.
- Ownership of assets: who owns the sending domains, lead lists, sequences, and CRM data after the contract ends? Without a clear rule, you lose the entire build-out at exit.
- SQL definition in writing: what counts as a qualified meeting — budget, authority, need, timing? Without a fixed definition, every hybrid bonus becomes a dispute.
- GDPR and data provenance: data processing agreement, documented data sources (public sources instead of purchased gray lists), a working opt-out process, server location.
- Reporting access: real-time insight into campaigns, reply rates, and pipeline instead of a monthly PDF summary. Anyone who won’t show the data usually has a reason.
- Exclusivity and capacity: does the provider work in parallel for direct competitors? How many clients does one team/system handle at the same time?
Conclusion
Outbound Sales as a Service in 2026 is not a uniform product, but a spectrum: from a dedicated SDR team (SingularitySales), to enablement-led models (SalesPlaybook), to AI systems with human approval (CegTec, Close One). The model choice comes before the provider choice: phone-centric target audiences need human SDRs, digitally reachable ICPs are usually more cost-efficient with AI-powered systems. For the AI variant, CegTec is our recommendation — its own platform, multi-channel including WhatsApp, human-in-the-loop, and published numbers. Compare at the level of cost per SQL, insist on a pilot phase, and settle asset ownership before signing.
If you want to work out what AI-powered outbound with human-in-the-loop means for your pipeline: book a free intro call — the platform behind it is GTM Goat.
Common questions
What is Outbound Sales as a Service?
Outbound Sales as a Service means: an external provider runs the proactive sales process for you — target customer research, outreach via email, LinkedIn, or phone, follow-ups, and meeting booking — as an ongoing service against a retainer. Unlike a pay-per-lead model, you're not buying a ready-made lead, but a functioning outbound process including infrastructure, data, and optimization.
What does Outbound Sales as a Service cost in the DACH region?
According to provider directories, onshore DACH SDR-as-a-service retainers typically run €4,500-9,500/SDR/month; the most common model is a hybrid of retainer plus SQL bonus. AI-powered systems start below that: Close One done from €1,990/month, CegTec from €2,500/month. SalesPlaybook publishes a range of five-figure per quarter, SingularitySales quotes on request. For comparison: an in-house SDR costs €60,000-90,000/year fully loaded.
Outbound Sales as a Service or an in-house SDR — which pays off?
An in-house SDR realistically costs €60,000-90,000/year (€5,000-7,500/month) with salary, payroll costs, tools, data, and management — plus 3-6 months of ramp-up and downside risk on termination. A service from €2,500-9,500/month is productive immediately and cancellable. In-house pays off when outbound is meant to become a permanent core process and sales-management capacity exists. The service pays off for getting started, market tests, and when no SDR management is in place.
How does an AI outbound system differ from a classic SDR agency?
A classic SDR agency scales through people: dedicated SDRs call and write, and price scales per head (typically €4,500-9,500/SDR/month onshore). An AI system with human-in-the-loop scales through software: AI agents handle research, personalization, and sequences, while a human approves messages and replies. This significantly lowers cost per contact, but doesn't replace a phone conversation — anyone with phone-centric target audiences still needs human SDRs or a hybrid model.
What should I watch for in a contract with an outbound provider?
Five points: (1) term and exit — a pilot phase instead of a 12-month lock-in, clear cancellation periods. (2) ownership of assets — who owns domains, lists, sequences, and CRM data after the contract ends? (3) SQL definition — what counts as a qualified meeting, fixed in writing. (4) GDPR — data provenance, data processing agreement, opt-out process. (5) reporting — real-time access to campaign data instead of monthly PDF reports.