CX marketing outsourcing services

Delivering a 30%+ increase in LTV and a 10% revenue uplift within the first year.
Moving beyond Marketing, we engineer scalable systems. MENTELI drives acquisition, streamlines marketing operations, and embeds CX strategies designed for ultimate customer retention

Free Audit

When CX, digital, and behavioral psychology meet, it

helps you to

● Improve core marketing metrics — CAC, CR, ROAS, LTV, and revenue.● Uncover hidden revenue growth opportunities.● Define and strengthen your brand’s strategic differentiation.● Build a scalable omnichannel acquisition system.● Increase marketing performance through behavioral analytics.● Maximize ROI and long-term customer value (LTV).

Capabilities

● CX Audit & Customer Journey Mapping (CJM)incl. behavioral & psychological marketing frameworks
● Performance MarketingGoogle Ads, Meta, LinkedIn, AI / LLM Search
● Revenue & Conversion Optimization CX Enhancement and Churn Reduction
● Lifecycle Marketingacquisition, retention, and reactivation systems
● Unit Economics Optimization reducing CAC, increasing LTV, improving overall profit margins.

Guarantees

● Your Data Is ProtectedWe sign a Non-Disclosure Agreement (NDA). All your ideas, data, and materials remain strictly confidential and are used only within the scope of the project.
● Results GuaranteeWe deliver the agreed goals. If we don’t, we compensate you with a penalty payment. Our responsibility is defined in the agreement.
● No Complicated JargonNo confusing formulas or “marketing buzzwords.” We clearly explain what we’re doing, why it matters, and what results you can expect — in simple, human language.
● Full TransparencyYou always know what’s happening in the project. We provide regular updates, clear metrics, progress reports, and a defined plan for the next steps.

Our

advantages of marketing outsourcing services

Psychological and marketing expertise
Expertise in digital marketing, strategic marketing and psychological marketing analysis.
EXPERIENCE
Led by a founder with 10+ years of marketing expertise.
contract
Access temporary, expert-level marketing support without hiring a full-time employee.

Increase LTV in your business

Behavioral psychology meets marketing, Digital AND CX
We combine psychology and marketing techniques to differentiate you from your competitors and improve core marketing metrics — CAC, CR, ROAS, LTV, and revenue.
A highly flexible approach
Just tell us your goals, and together we’ll find the right solution.
We take full responsibility
We don’t just advise — we execute and deliver results.

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