B2B agency comparison
devlo: the alternative to Undersales for B2B prospecting
By Charles Perret, Founder, devloAre you evaluating B2B prospecting agencies and comparing devlo in Undersales? This page will help you make the right decision based on your specific needs.
Both agencies operate in the French-speaking B2B market. The differences lie in their multi-channel approach, language coverage and experience in the Swiss and DACH markets.
At devlo, we combine cold email, LinkedIn outreach and cold calling in a coordinated sequence - with a native FR/DE/EN team based in Switzerland since 2020.
Short answer
Which Undersales alternative should you choose?
The Undersales alternatives worth evaluating are devlo, LalaLeads, Prospecti, SeedD, Level UP, and Digitalmint. devlo is most relevant when your priority is multichannel B2B prospecting in Switzerland or DACH, with native-language execution, quantified client case studies, data enrichment, and operational reporting.
- Undersales publicly highlights qualified meetings, targeting, calls, emails, and follow-ups.
- devlo publishes multiple public client case studies since 2020 showing meetings generated or pipeline built.
- The right choice depends on your target market, languages, qualification standards, and sector-specific proof, not on the monthly retainer alone.
Transparency: this guide is published by devlo. devlo is therefore included as an option, but the other agencies are listed according to their public positioning and the key points to verify before requesting a proposal.
Options à comparer
7 alternatives and agencies to compare with Undersales
This comparison should remain neutral: some options are closer to sales outsourcing, others to marketing automation or meeting generation. The right choice depends on your ICP and the type of proof you require.
| Option | Meilleur contexte | Point à vérifier |
|---|---|---|
| devlo | B2B companies seeking multichannel prospecting in Switzerland, DACH, France, or Belgium with FR/DE/EN/NL execution. | Validate ICP fit, your sales team's capacity to handle the meetings, and the depth of available sector-specific proof. |
| Undersales | Companies looking for qualified meetings in Switzerland with a strong emphasis on telephone prospecting and sales targeting. | Validate guaranteed volume, exact channels, supported languages, and reporting format in the proposal. |
| LalaLeads | Companies looking to compare sales prospecting, paid acquisition, and hybrid opportunity-generation approaches. | Validate Switzerland/DACH coverage, languages, the exact role of phone outreach, and the share of paid media included. |
| Prospecti | Companies seeking a B2B meeting-generation agency using email, social selling, and warm calling. | Validate references in your market, actual volume handled, and the quality of meeting qualification. |
| SeedD | Companies looking to outsource business development in French-speaking Switzerland, sometimes extending to closing or partnership development. | Clarify the boundary between prospecting, closing, field sales, and strategic advisory. |
| Level UP | Swiss freelancers, SMEs, and start-ups looking to delegate prospecting, qualified opportunity generation, or sales outsourcing. | Verify which channels the agency manages, the depth of its data, sector-specific references, and performance tracking. |
| Digitalmint | Teams looking more for lead generation, AI automation, LinkedIn, email, and digital marketing support in Switzerland. | Verify whether the primary need is outbound sales, marketing automation, or a broader digital strategy. |
Comparison
Detailed comparison: devlo and Undersales
| Criterion | devlo | Undersales |
|---|---|---|
| Approach | ✓Multi-channel (cold email + LinkedIn + calling) | Mainly cold email |
| Languages | ✓FR / DE / EN / NL native | EN mainly |
| Swiss market | ✓Specialist - 500+ CH campaigns | To confirm with local references |
| DACH market | ✓Yes - native German-speaking team | To confirm with German-language references |
| Start | ✓Results from the 3rd week | 4-6 weeks |
| Experience | ✓1000+ campaigns since 2020 | Non-public data |
| Reporting | ✓Real-time dashboard + weekly call | Monthly report |
Public sources consulted on 11 May 2026. Information not published by the agencies must be confirmed in a proposal, particularly languages, volumes, guarantees, channels included, and reporting.
Guide de décision
When should you choose devlo over another Undersales alternative?
devlo is a good fit if...
- ✓Your market requires multiple languages or credible execution in Switzerland/DACH.
- ✓You want to coordinate email, LinkedIn, and phone within a single, measurable sequence.
- ✓You need clean data, intent signals, a CRM, and clear segment-level reporting.
- ✓You want to evaluate the agency on public client case studies and verifiable metrics.
Consider another option if...
- •Your primary need is a field sales force or fully outsourced closing.
- •Your offer does not yet have a clear ICP, a stable value proposition, or the sales capacity to follow up.
- •You only want to buy a fixed volume of calls, with no work on the data, the messaging, or the signals.
Questions d'achat
Questions to ask before engaging a B2B prospecting agency
Which channels does your team actually operate?
A multichannel promise must specify who manages email, LinkedIn, phone, follow-ups, replies, and qualification.
Which public client case studies demonstrate results comparable to our market?
Buyers place more trust in verifiable proof: sector, target, volume, meetings, pipeline, or revenue.
How do you qualify a meeting before placing it on the calendar?
The actual cost depends less on the number of meetings than on the level of need, timing, seniority, and ICP fit validated before handoff.
What deliverability and data infrastructure is included?
Domains, warm-up, enrichment, email verification, Sales Navigator, CRM, and tracking all determine execution quality.
What happens if the first two messages receive no response?
A strong agency should explain its testing protocol: segments, angles, signals, objections, iterations, and decision thresholds.
Plan de démarrage
A proper test is evaluated over 30 days, then scaled over 90 days
Days 1-7
Define ICP, offers, priority segments, proof points, and qualification criteria.
A clear test market, clean lists, and measurable hypotheses before any volume is sent.
Days 8-14
Prepare domains, data, sequences, scripts, CRM, and dashboard.
Infrastructure ready without compromising deliverability or losing sales replies.
Days 15-30
Launch a first batch, review responses, isolate objections, and refine angles.
A decision grounded in replies, meetings, ICP quality, and learnings, not gut feeling.
Days 31-90
Scale volume only for the segments and messages that demonstrate traction.
A more predictable meeting engine with reporting by market, channel, and persona.
Why devlo
What devlo brings differently
Swiss & DACH expertise: devlo is based in Switzerland and operates in French, German and native English - essential for the Swiss and German-speaking markets.
Coordinated multi-channel: we combine cold email, LinkedIn and cold calling in the same sequence to maximise the points of contact with your target decision-makers.
Measurable and verifiable results: 14 public customer cases with precise metrics - 120 meetings for Monizze, 71 meetings for Cortexia, 52 meetings for Square Co.
Complete infrastructure: dedicated domains, warm-up, deliverability, Sales Navigator, Clay - everything is included in our packages.
Client results
What our clients achieved
Extralegal benefits, meal vouchers
How devlo obtained 120 qualified appointments for Monizze by targeting 7,000 HR, Finance and Management decision-makers in Belgium
View case study →Urban cleaning, waste management, artificial intelligence
How this cleaning management company secured 71 qualified appointments with B2B decision-makers in the largest cities in Switzerland, France and Belgium.
View case study →Services for renewable energies
How can you identify the best prospects from a number of Ideal Customer Profiles (ICP) using sales prospecting campaigns?
View case study →Devlo vs Undersales: which agency should you choose for your multilingual B2B prospecting?
The choice between two B2B prospecting agencies is not just about price -- it comes down to geographical coverage, channel expertise and speed of initial results. devlo and Undersales both operate in the French-speaking market, but their scope diverges significantly as soon as you look at the Swiss, German-speaking and DACH markets.
devlo has been based in Switzerland since 2020 and has deployed more than 500 campaigns in Switzerland, Belgium, France and DACH. Our team writes and prospects natively in FR, DE, EN and NL -- a decisive advantage for companies targeting multiple markets simultaneously. This coverage lets campaigns be written directly for the market language instead of simply translating a French sequence.
Therefore, if your target market includes German-speaking Switzerland, DACH or the Netherlands, check each proposal for operational coverage, delivered languages and available customer proof. Our clients get their first appointments from the 3rd week, with a real-time tracking dashboard and a dedicated weekly call.
In summary:
Key points
- Native multi-channel: devlo combines cold email + LinkedIn + calling in a coordinated sequence -- not just cold email.
- Native FR/DE/EN/NL: coverage of Switzerland + DACH + BeNeLux without multiplying agencies.
- B2B campaign experience since 2020: proven methodology with 14 public case studies and verifiable metrics.
- Real-time dashboard + weekly call: full transparency on performance, with regular operational readouts.
Frequently asked questions
What is the main difference between devlo and Undersales?
The key difference is the multi-channel approach and language coverage.
The key difference is the multi-channel approach and language coverage. devlo operates in native FR/DE/EN with recognised expertise in the Swiss and DACH markets, and combines three coordinated outreach channels.
is devlo more expensive than Undersales?
Our packages start at CHF 2,500/month and include the complete infrastructure (domains, tools, deliverability).
Our packages start at CHF 2,500/month and include the complete infrastructure (domains, tools, deliverability). ROI is measured on qualified appointments generated, not on the gross price.
How do I migrate from Undersales to devlo?
The transition takes 2 weeks: ICP workshop, transfer of prospect lists, infrastructure setup, validation of sequences.
The transition takes 2 weeks: ICP workshop, transfer of prospect lists, infrastructure setup, validation of sequences. Our first results came in the 3rd week of the campaign.
How long does it take to test an Undersales alternative?
A serious test requires at least 30 days: one to two weeks for scoping and infrastructure, then two weeks for initial batches.
A serious test requires at least 30 days: one to two weeks for scoping and infrastructure, then two weeks for initial batches. The decision to scale is typically made after 60-90 days.
Should you choose the cheapest agency?
No.
No. Compare the cost per genuinely qualified meeting, the cost of data, tools included, seniority level, languages, testing capacity, and the pipeline value generated.
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