Cold email campaign for urban cleaning services — 38% response rate
7 steps over 30 days. 4 emails, 2 phone calls, 1 LinkedIn message. 708 prospects contacted.
Charles Perret
Founder of devlo.ch · March 2026
The 7 keys in the sequence
4 emails, 2 phone calls, 1 LinkedIn message — over 30 days.
Why this sequence works
708 prospects contacted, yielding a 38% response rate and 79 interested prospects — this campaign demonstrates that it is possible to prospect effectively in the public sector. The key: a 79% open rate achieved through personalised email subject lines that included the prospect’s town name.
The strategy of starting with LinkedIn (Touch #1) before sending the first email (Touch #2) is particularly well-suited to local elected representatives. These decision-makers often have assistants who filter their emails, but they manage their LinkedIn profiles themselves. Making contact via LinkedIn first increases the open rate of the first email by 20–30%.
The story of the ‘street commissioner’ who achieved his first results in just two months (Touch #4) is a powerful psychological tool. For a local councillor, the fear of not having enough resources is the main objection — this success story directly dispels that concern.
What you can learn from this campaign
- Start with LinkedIn for the public sector. Elected representatives often manage their LinkedIn profiles themselves, unlike their work email accounts.
- Customise with the name of the town. Mentioning the prospect’s town in the subject line and body of the email boosts the open rate.
- Use customer stories to address objections. The "street commissioner", who achieved results within two months, refutes the argument about resources.
- Offer a pilot scheme on a first-come, first-served basis. The first five towns to qualify for a preferential rate are creating a sense of urgency.
When to use this sequence
Smart City solutions and urban cleanliness
Your product uses AI, IoT or image analysis to improve urban management. The model targets the right decision-makers.
Targeting elected representatives and local officials
Mayors, heads of technical services, and waste management officers — this programme is designed for the public sector.
Market research in Switzerland and the Benelux countries
The German/French bilingual version is tailored to the Swiss and Belgian markets.
Solutions without a tender process
If your solution is unique and does not require an RFP, this section highlights that advantage.
Who can use this sequence?
Smart City and civic tech start-ups
If your solution uses technology to improve urban management.
SDRs targeting the public sector
The module is designed to guide participants through the intricacies of public sector procurement.
Sales teams in the environmental sector
If your product reduces the environmental footprint of local communities.
Integrators of urban IoT solutions
Suitable for any sensor, AI or image analysis solution for cities.
Frequently Asked Questions
Does cold emailing work with local councillors?
Yes, with a response rate of 38% out of 708 prospects. The key is personalisation: mentioning the name of the town and the prospect’s specific role. Elected representatives are sensitive to the practical issues faced by their constituents. The structure of the campaign (LinkedIn first, followed by a personalised email) bypasses government email filters.
How should public procurement processes be managed during the prospecting phase?
This section emphasises that "no RFP is required as our solution is unique". If your solution requires a tender process, adapt the call-to-action — rather than a sales meeting, offer an informational presentation or a pilot trial that can be launched without a formal procedure.
Which language should be used when targeting Swiss municipalities?
In Switzerland, use the local language: French in French-speaking Switzerland, German in German-speaking Switzerland. This sequence is bilingual (DE/FR) to cover both markets. Never mix languages within the same email — each prospect receives the sequence in their own language.
Want a customised sequence for your industry?
devlo designs and executes bespoke B2B cold email campaigns. ICP, buying signals, multi-channel sequences — we take care of everything.
Last updated: March 2026
