Psychological Marketing Agency

customer experience with Menteli

Convert more leads into loyal clients

Profit more—by making your customers feel great

MENTELI is a unique agency at the intersection of psychology and marketing. We specialize in customer experience (CX), helping you convert more leads into loyal clients while inspiring your existing clients to talk about your brand and recommend you to others.
By combining analytical thinking, advanced marketing and advertising tools, and a deep understanding of human behavior, we help businesses grow sustainably and stand out from competitors on a whole new level.

Customer Journey Mapping (CJM)

We map your customer’s entire journey—from first impression to final interaction—to reveal how they experience your brand at every touchpoint. This helps us identify what attracts them, what pushes them away, and where opportunities for improvement exist.

Customer experience (CX) Audit

We conduct a comprehensive customer experience audit to understand not just what your customers do, but how they feel before, during, and after their purchase. This insight uncovers pain points, emotional triggers, and opportunities for CX enhancement.

Customer experience (CX) Optimization

We design and refine your customer experience to elevate every interaction. This includes optimizing communication, advertising, PR, and customer-facing activities—ensuring your CX becomes your most powerful marketing and retention tool.

Customer experience design

Inspire your existing customers to talk about your brand.

Our solutions

About

OLIA LANGE

CEO | FOUNDER

I bring 10+ years of experience in marketing as a Head of Marketing across several industries, including construction, healthcare, retail, and education. My educational background is in analysis and forecasting. Additionally, I have dedicated significant time to studying and researching psychological principles, such as cognitive distortions and the psychological factors behind human decision-making, as part of my PhD dissertation.My expertise in marketing tools includes analysis, advertising, digital marketing, USP development, and marketing strategy.

Elina L.

Founder atZennIP, Finland

I am handling everything in my business by myself, therefore it was really good to get advice from the customer’s perspective. Working with Menteli helped me see my services through their eyes, spot the gaps, and I received practical guidance on how to address these gaps.
What stood out was the honest and enthusiastic approach, and the time taken to truly understand both me and my business. The psychological insight into marketing, along with detailed and practical suggestions, made the guidance not only valuable but also inspiring. I recommend Menteli!

September 2025

Ekaterina M.

Entrepreneur, Finland

“Olia demonstrated a solid understanding of marketing principles, campaign planning and execution and exhibited strong analytical and problem-solving skills. Her proficiency in using online marketing tools [...] was impressive and contributed significantly to our campaign objectives. Additionally, she displayed excellent communication and teamwork abilities. Her performance reflected a high level of professionalism.”

May 2024

Topornikov S.

Commercial DirectorReal Estate Agency "PIA Real Estate"

For nearly two years our agency cooperated with the marketing agency headed by Olga Lange. During this period, we received not only professional support but also a non-standard, creative approach that delivered tangible, practical results.We would especially like to highlight the effective work on segmenting target audiences [...]. In addition to digital channels, the agency offered a number of original and economically efficient offline solutions. For example, the “Horrors of a Real Estate Buyer” brochures [...]. This approach proved to be a simple and effective way to build an emotional connection with the local community.Working with Olga Lange has always been a combination of professionalism, reliability, and genuine engagement. We confidently recommend her as a specialist with whom it is both pleasant and productive to cooperate.

October 2017

Nikita P.

SSL Group

HR brand service.“You definitely know your stuff! We recruit 10 logisticians per month now, whereas before, we were recruiting just one per year—and they weren’t really up to standard. We’d love to work exclusively with you!”

December 2020

Jakob S.

Art Gallery

“I like the way you work! Take my friend as a client. Can I give him your contacts?”

January 2021

Maksim D.

Big Bag

“We were pleased to cooperate with you! It's great to choose a brand style from options you like, rather than picking the best from those you don't.”

June 2018

Write us

Contacts

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+358 40 328 60 84