Sleak

The AI Platform for People Development.

With Sleak, your teams learn and practice through natural conversations with AI – grounded in your company's knowledge and standards.

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Proven in practice

Trusted by leaders building business-critical capabilities.

Leading organizations use Sleak to accelerate readiness, scale high-quality practice, and reduce the coaching burden on managers.

Würth
Good sales does not happen by chance. It is trained. With Sleak, employees practice realistic customer calls, get targeted feedback, and build the confidence to handle conversations more effectively.
Torsten EliasManaging Director Sales
Helvetia
Sleak is opening up a new world in sales training for us. I am overwhelmed by how realistic the AI dialogues feel and impressed by how quickly the solution was tailored to our needs.
Bernhard GrafeHead of Sales Academy
Bausparkasse Schwäbisch Hall
Sleak turns a sales approach from something people are told about into something they can actually experience. The feedback is direct and usable in the very next conversation.
Johannes SkibowskiHead of Sales HR Management
KUKA
Sleak gives our sales team a way to practice product knowledge and sales conversations regularly – not just once a year.
Alexander OffergeldHead of Sales Product Intelligence
Würth
Helvetia
Bausparkasse Schwäbisch Hall
FEGA & Schmitt
Energieversum
KUKA
Schmitz Cargobull
Suxxeed
bott
Use Cases

Build the capabilities behind your business priorities

Whether you are launching a product, improving customer conversations, protecting margin, or strengthening leadership, Sleak helps your teams learn what matters and perform when it counts.

Improve sales execution.

Help sales teams master your products, messaging, and methods – and apply them consistently in real customer conversations.

  • New product launch
  • Discovery call
  • Objection handling
  • Enterprise negotiation
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Raise team performance.

Help managers handle feedback, accountability, and difficult conversations in ways that strengthen trust and performance.

  • Feedback conversations
  • Performance reviews
  • Difficult conversations
  • Team alignment
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Protect margin.

Prepare teams to negotiate confidently, challenge suppliers, and prevent value from being conceded at the table.

  • Supplier negotiations
  • Contract renewals
  • Price increase pushback
  • Stakeholder alignment
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Retain more customers.

Prepare teams to resolve difficult customer moments with empathy and clarity – before dissatisfaction becomes churn.

  • Customer onboarding
  • Escalation handling
  • Renewal conversations
  • Complaint resolution
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How it works

Develop every person.

Sleak turns business goals into personalized learning, realistic practice, and measurable improvement.

Understand

Learn what matters through dialogue grounded in your company’s knowledge.

Product details

Practice

Rehearse real conversations in realistic voice simulations.

Improve

Get focused feedback, close gaps, and track your progress.

+18%
Trust and adoption

Built for people. Ready for enterprise.

Give every employee a private place to learn, practice, and improve – while giving your organization the consistency, security, and visibility needed to develop teams at scale.

Personalized to every person

Sleak adapts to each employee’s role, existing knowledge, experience, and development gaps.

Multilingual

EnglishFrenchGerman
+25

Support global teams across 25+ languages an regional dialects.

Privacy by Default

Configure privacy settings to match your policies, roles, and organizational requirements.

Enterprise-ready security

Designed for enterprise security, privacy, and compliance requirements.

(ISO27001, GDPR, AI Act)

Personal training ground

People can practice, make mistakes, and improve without pressure, enabling real growth.

Company-specific

Ground development in your own materials, terminology, products, playbooks, and standards.

Actionable Insights

See adoption, readiness, and capability trends across the organization – and focus development where it matters most.

Customer Stories

How teams build capability with Sleak.

See how organizations use Sleak to scale personalized development, reduce manager workload, and focus learning on real business goals.

FEGA & Schmitt

How FEGA & Schmitt made realistic sales practice available anywhere.

FEGA & Schmitt needed to develop sales skills across a workforce spread over dozens of locations. Sleak made company-specific conversation practice available on demand, without requiring employees to travel or wait for the next classroom session.

900+employees training with Sleak
100+teams reached
4.83/5average training rating
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Energieversum

How Energieversum broke its onboarding ceiling.

Energieversum already invested more in practical sales training than most companies. But its high-touch model was still constrained by the availability of its best sales leaders. Sleak removed that constraint – without compromising coaching quality.

~35practice conversations per rep
5+ hrsteam-lead time saved per rep
~2×faster onboarding
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Bausparkasse Schwäbisch Hall

How Schwäbisch Hall scaled new sales approaches across its field organization.

Schwäbisch Hall had identified six proven sales approaches and wanted to embed them across its field sales organization. Sleak gave representatives a practical way to build confidence in those methods before using them with customers.

+11.1 pppractical conversation skills
Halvedgap between knowing and doing
1,800+practice conversations completed
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SUXXEED

How SUXXEED built one sales talent system, from hiring to career growth.

SUXXEED uses the same realistic conversation practice to identify sales talent, prepare new hires, develop experienced employees, and make readiness for the next career step visible.

+14.5%overall conversation quality
+42.4%objection-handling performance
500+company-specific AI buyer personas
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Würth

How Würth scaled on-demand practice to more than 5,000 employees.

Sales excellence has always been central to Würth’s success. With Sleak the company made practical conversation training available at the scale of the organisation – first for its field sales teams, and now beyond them.

5,000+employees with access
4.76/5average training rating
80participants in the pilot
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