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SMART CITYMULTICHANNELLOCAL ELECTED REPRESENTATIVES

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

Charles Perret

Founder of devlo.ch · March 2026

708
Prospects contacted
79%
Open rate
38%
Response rate
79
Interested prospects

The 7 keys in the sequence

4 emails, 2 phone calls, 1 LinkedIn message — over 30 days.

LinkedIn1 day laterLinkedIn login
LinkedIn connection request Sent: 1 day after the last message From: Client Content: from LinkedIn Option A] Fully personalised Option B) Hello Mr {{last name}}, my colleague {{salesRep}} will be contacting you regarding street cleaning in {{city}}. Is {{email}} the correct email address for me to contact you?
Emailfirst day of the seriesEmail #2
Subject: Our conversation - {{firstName}} & {{salesRep}}
Dear {{salutation}} {{lastName}}, {{icebreaker}}. My research has also shown that you are politically responsible for keeping {{city}} clean. We currently support over 50 cities and local authorities that have chosen our solution to monitor their cleanliness levels, optimise the use of their resources and reduce their environmental footprint, particularly their water consumption and greenhouse gas emissions. The city of Basel, for example, has been able to reduce its number of street sweepers by 15%. The head of the cleaning department can objectively demonstrate that their city has become cleaner. To achieve this, the city is mapped using our image recognition system installed on vehicles. These cleanliness measurements also help to engage teams in a process of continuous improvement and make their working conditions more attractive. It would be great to be able to give you more details over the phone. Are you interested, or am I way off the mark? Kind regards, {{salesRep}} PS: This video shows how the intelligent vision system works on vehicles {{signature}}
Email7 days laterEmail #3
Dear {{salutation}} {{lastName}}, What do you think of my proposal? Furthermore, we invite you to conduct a large-scale trial over the next three months, focusing on one or more specific operational objectives (this is, after all, the time of year when waste production peaks!). You can test our solution in {{city}} to assess the results for yourself. The first five towns in {{CountrySequence}} will benefit from a preferential rate. As an added bonus, you will also receive personalised support from one of our experts, who can help you resolve operational issues relating to cleanliness in your town. For your information, all the towns and municipalities that rolled out our solution in 2022 have expanded their coverage to larger areas. Implementation is straightforward and no tender process is required, as our solution is unique and we have no competitors. Would you be interested in a meeting with our CEO? Kind regards, {{salesRep}} {{signature}} PS: My to-do list in the image below reminded me to write to you 😉
CallN/APhone call
Call to action: Schedule an initial consultation to identify the potential client’s needs Contact details --- Dear {{salutation}} {{lastname}}, Would it be better to contact your colleagues {{colleaguename1}} or {{colleaguename2}}? I imagine your schedule is busy. However, your colleagues responsible for sanitation, pollution or street cleaning might be interested. A quick anecdote: one of our clients (a road maintenance manager) thought he would need more internal resources to launch the project. However, it took just two months to see the first results. Not only did he realise that he and his teams had saved valuable time, but they even eliminated several ‘black spots’ of unknown waste (thanks to the clear dashboard). Kind regards, {{salesRep}} P.S.: Below is an example of a weekly report. It is an essential tool to help you make decisions today and achieve concrete results tomorrow
Call3 days laterPhone call
First cold call Date sent: 3 days after the previous message Call script: If the prospect answers: Opening line: Hello, my name is {{salesRep}} and I work for [ClientCompanyName]. I contacted you by email as you are the {{jobtitle}} for the town of {{City}} and I wrote to you regarding urban cleanliness. Do you have a few minutes to chat? Objective: As you can see, over 50 local authorities have adopted our solution to manage their cleanliness, optimise their resources and reduce their environmental footprint. That is why we would like to meet you and present the results achieved by our clients. Are you interested? Call to action: That is why our Managing Director [Director_FirstName] would like to meet with you and present the results achieved by our clients. Are you interested? Background: 50 local authorities have adopted our solution to monitor their cleanliness levels, optimise the use of their resources and reduce their environmental footprint, particularly their water consumption and greenhouse gas emissions. To do this, they map the cleanliness of their town using our image recognition systems installed on their vehicles. These cleanliness metrics also enable us to involve our teams in a process of continuous improvement and make their working conditions more attractive. Follow the telephone sales script below If yes, ask these questions to personalise the demonstration and qualify the prospect If no, ask why and overcome the objections: (Courtesy - Problem - Action) _____ _____ _____
Email1 day laterEmail #6
Subject: Missed call - Street cleaning
Dear {{salutation}} {{lastname}}, I was unable to reach you by phone today. Like all the other elected representatives we work with, you care about the appeal, safety and sustainability of {{city}}. What’s more, your residents’ quality of life goes hand in hand with the cleanliness of the city. That’s why we’d like to meet with you to present the results your residents can expect. Could we discuss this over the phone? Kind regards, {{salesRep}} P.S.: Here’s a little virtual coffee to help you get on with your day :)!
Email4 days laterEmail #7
Dear {{salutation}} {{lastname}}, Should I get in touch with you again later this year? The {{city}} website states that you are responsible for improving the cleanliness of the city. You know as well as I do that you can’t improve what you can’t measure. Only by measuring the resources deployed can we assess their effectiveness and improve them. That is why we can help you innovate in this area to ensure the quality of life for your residents. A recent case study focuses on a business district in Utrecht, the Netherlands, where many residents were complaining about cleanliness. Our solution redefined the cleaning zones based on measurements taken over a two-month period. The result: no further complaints, and four street cleaners were able to be reassigned to less strenuous tasks. Would you like to know more about the background? Or would you like to contact our clients to exchange ideas and ask them questions directly? Kind regards, {{salesRep}} P.S.: Just like you, we believe that {{city}} is one of the cleanest cities in the {{CountrySequence}} region. Together, we can prove it and do even better without investing any more resources. {{signature}}

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.

View all 25 sequences

Last updated: March 2026