OUR SERVICES
The real risk on your project isn't technical. It's relational.
Community resistance, stakeholder conflict, political intervention and reputational damage are increasingly the factors that delay or derail infrastructure projects — not engineering failures or logistics problems. Sonar manages those risks. From the earliest stages of stakeholder mapping through to project close, we provide the community intelligence, the communications planning and the on-the-ground presence that protects your programme and builds the goodwill that outlasts it.
Construction, highways, rail, and utility works affect real people — residents, businesses, councillors, community groups and anchor institutions. Managing those relationships well, from the moment a project is mobilised to the day it closes, is what protects your programme, your reputation and your client relationships.
That disruption, handled badly, generates complaints, media coverage, council pressure, legal challenge and programme delays. But handled well, it generates the kind of community goodwill that outlasts the project and builds a legacy.
Sonar provides the full range of stakeholder management and public consultation services — from early influence mapping and communications planning, through public information events, focus groups and field engagement, to ongoing sentiment tracking and complaint resolution on live schemes. We work across the entire project lifecycle, and we bring the community intelligence that makes every part of it more effective.
We are trusted by National Highways, Network Rail, local authorities and many others to manage stakeholder relationships and project communications on complex, high-profile schemes. Whether you need a full communications strategy, targeted stakeholder mapping, or experienced people on the ground running public engagement — we can help with one, some, or all of the above.

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What this looks like in practice

Stage 01
Before ground breaks
The work that happens before the first notification letter goes out shapes everything that follows. Sonar helps you understand who your stakeholders are, how much influence they hold, what their existing relationship with the project is, and what sensitivities need to be managed from day one.
Get this wrong and you're managing a crisis. Get it right and you're managing a project.
- Stakeholder mapping and analysis
- Stakeholder influence mapping
- Relationship assessment and project advocates
- Media and communications planning
- Communication strategy from pre-works notification through to project close

Stage 02
During delivery
This is where community relations are won or lost. Sonar's people are embedded in your project team — attending meetings, managing daily interactions, monitoring community sentiment and acting as the primary interface between the project and the people it affects. They are drawn from policing, community management, and neighbourhood engagement backgrounds — not PR. They know how to enter difficult situations, build trust quickly, and protect your programme. When something goes wrong on site, they have the skills to manage it without flinching.
- Community engagement events and plans
- Public information events
- Door-to-door field engagement
- Focus groups and workshops
- Anchor institution engagement
- Complaint resolution
- Sentiment analysis and ongoing perception tracking
- Project risk management

Stage 03
Public consultation
When a project requires formal public consultation — a new reservoir, a major infrastructure scheme, a planning application with significant community impact — Sonar manages the process from design through to documented outcomes. Independent, evidence-based and structured around what communities actually say rather than what they're assumed to want.
- Public consultation design and delivery
- Stakeholder engagement planning
- Community events and drop-ins
- Hard-to-reach group engagement
- Documented consultation outcomes and evidence reports
The three risks we manage
Non-technical risk
The factors most likely to delay or derail a project aren't engineering or logistics failures — they're community resistance, stakeholder conflict and political intervention. A structured engagement approach, embedded from mobilisation, identifies these risks early and manages them before they become crises.
Complaint and community disruption
Noise, dust, traffic, lane closures, reduced access — these are unavoidable. What is avoidable is the community relations fallout from handling them badly. A visible, responsive, genuinely helpful presence on the ground turns disruption from a source of resentment into a manageable inconvenience.
Programme protection
A project that generates sustained community opposition risks injunctions, local authority intervention, political pressure and reputational damage that affects future framework bids. A project where community relationships are managed well from day one runs more smoothly, generates fewer escalations, and completes with the kind of goodwill that becomes a reference.
Testimonials
In their words, not ours
"Partnering with Sonar Engagement has helped us transform our Social Value strategy with a confident and clear pathway on how to connect with communities, forecast and deliver Social Value outcomes that leave lasting legacies. SONAR has been pivotal in this success."
Jason Marbeck
Strategy and Development Director, AmcoGiffen
"Sonar is a key part of the Clifton Bridge team. Their knowledge and experience has assisted in building good relationships with local Councils and other key stakeholders impacted by this major scheme."
Steven Longden
East Midlands Asset Delivery Project Manager, National Highways
"Efficient, professional and helped us deliver fantastic social value."
Lisa McKellar
Marketing and Social Value Director, QTS Group
Who we work with
Highways
National Highways frameworks, local authority road programmes, maintenance contracts
Rail
Network Rail, Transport for Wales, regional rail programmes
Utilities
Water, gas and electricity infrastructure
Construction & civils
Major contractors and Tier 1 supply chain
Local authorities
Regeneration, transport and public realm schemes
Public consultation
Any organisation engaging communities ahead of planning or investment decisions
See stakeholder management in action
From a Network Rail tunnel repair in North London to a six-year highways partnership with Carnell Group — our case studies show what structured community engagement actually looks like on live schemes.
View case studies
Ready to protect your programme?
Most clients begin with a conversation. Tell us about your project and we'll tell you what we'd recommend.
Talk to us