Advisor to private equity and mid-market leadership
Mario Peshev: Technical Value Creation Advisor for Private Equity
I work with private equity sponsors, operating partners, and PE-backed mid-market leadership on technical due diligence, post-acquisition 100-day execution, and the go-to-market and RevOps operating systems that move EBITDA in portfolio companies.
The approach is operator-first rather than framework-first: surface technical and execution risk early, pressure-test growth assumptions, and give sponsors and leadership decision-grade perspective on what moves value.
Over the past 20 years, I have founded 6 companies and exited 2, completed 40+ acquisitions, sold a SaaS to a $180M business, and built DevriX into the in-house execution partner behind PE-backed and mid-market revenue systems.


Some of My Current Endeavors
Unlike some theoretical advisors, I spend $300K in R&D experiments annually myself, developing the latest playbooks across DevriX, Growth Shuttle, Robust Branding, and other businesses I invest in. Here’s where I spend most of my time on today.

DevriX
An execution unit of 40 that implements and stabilizes operating systems across revenue, operations, and data for PE-backed and mid-market companies. It supports businesses responsible for 100M+ monthly views and $1.45B+ in GMV.

Growth Shuttle
Having advised 500+ companies since 2010 on strategy, operations, and digital transformation.
We try to help mid-market companies and growing startups achieve excellence through effective management workflows.

SeedBlink
the leading European investing network.
Half of my investments are through the network and individual investments in several progressive companies.
(current list of investments)

Flippa
The largest digital acquisition marketplace.
I have made 40+ acquisitions as an operator and individual buyer, integrating businesses and digital properties across the lower-middle market.
500+
Companies Advised
50+
Successful Launches
10,000+
Consulting Hours
6
Companies Founded
What I Can Do For You?
Here’s a breakdown of my core business advisory initiatives
EAAS
01. Experimentation Services
Connecting data points from ROI-driven experiments is in our nature. But to drive true business growth we look at the bigger omnichannel picture. Run your own assessment here:
Strategy Consulting
Don’t let outdated expertise hold you back. Our continuously updated, data-driven insights ensure you’re always a step ahead in the global market. My business advisory portfolio gets access to our consolidated insights from 500+ data points to craft compelling strategies that convert, solving the biggest challenge in all industries, lack of up-to-date expertise.
Delivery Infrastructure
Without access to up-to-date, comprehensive market intelligence, you’re essentially flying blind in a complex global landscape. Every day of delay could mean missed opportunities and lost revenue. Integrating process automation, comprehensive documentation systems, streamlined management operations, advanced MarTech and marketing operations for peak operational performance.
Revenue Optimization
Our integrated advisory approach harmonizes data engineering, demand generation, and conversion optimization with precision SEO and targeted paid advertising, resulting in an average 45% increase in revenue and 60% improvement in ROI for our clients.
Digital Support
Our martech digital support services provide the backbone for your online strategy, delivering robust web development and reliable maintenance.
Market Research
We dive into the data, scrutinize the competitive landscape, and deliver actionable insights to ensure you understand the regulatory framework and risks. Position your business strategically with intelligence that informs success.
Strategic Planning
My B2B advisory clients step on a proven blueprint for global expansion. We’ll help set clear objectives and KPIs, formulate a robust market entry strategy, and build a data-driven infrastructure. Efficient resource allocation and a meticulously planned timeline will lay the groundwork for your international success.
Marketing & Branding
From localising your brand to resonate with new markets, to crafting a dynamic marketing mix, and optimizing digital outreach, we ensure your revenue channels are fine-tuned. Measure impact with precise performance metrics to continuously refine your approach.
Operational Execution
Our operational expertise will streamline your market entry. Benefit from our MarTech consulting, ensure compliance with legal standards, manage human resources effectively, and maintain operational excellence. We’re here to support continuous optimization for sustained success.
GTM
02. Go To Market Plans
Passionate in building a pipeline of qualified leads. Our innovative strategies help you withstand market uncertainty and macroeconomic shifts.

WEBSITE
03. WordPress Development Retainers
43% of the web runs on WordPress – and I launched a top 20 global WordPress consultancy. Our retainers let you utilize an entire team of tech and growth experts across monthly activities related to scaling WordPress platforms, integrating 3rd party platforms, scalability, performance optimization, security, and more.

Full-Stack Development
Our team of WordPress Core contributors, plugin and theme developers will take care of every technical aspect of your WordPress platform. We will build new features, manage customer development requirements, and improve your website speed and stability as we go.
No Management Needed
We employ professional project managers and team leaders which makes working with us a bliss. Unlike freelancers and on-site staff, we can build your entire strategy for months ahead and take care of all implementational details
Retainer Services
DevriX works with multinational organizations across the world providing technical, creative, business development, marketing, and support services. Here’s why we’re the right fit.
WordPress SaaS and Enterprise Platforms
As an established team of WordPress engineers, we have profiled in building high-scale enterprise and automation platforms for different industries. Over the past 10 years, our developers have crafted a dozen enterprise platforms, SaaS solutions and complex subscription-based WordPress platforms that handle millions of visitors and thousands of subsites for B2B customers.
Business Advisory
Growth Shuttle is an advisory practice working with me on competitor research, digital strategy, relationship building, and constant innovation in all things business improvement approach. Our launchpad is directly implemented for consulting clients once the value proposition is confirmed and the funnel works consistently.
Management Operations
Bootstrapped startups seek growth advice in handling recruitment and operations at scale. We apply EOS or OKRs with powerful scorecards and AI-assisted KPI tracking through competitive research and ICP enrichment.
Agency Scaling
Digital agencies aspire for growth through founding new departments and developing RACI cards, opening new service lines, strengthening recurring revenue, and optimizing processes. My advisory solutions reveal how we grew DevriX to one of the best enterprise WordPress providers in the world.
Digital Transformation
mid-market companies in non-tech businesses are looking for ways to scale automation and reduce overhead via digital transformation.
WEBSITE
04. Business Advisory
Across 6 companies founded and 40+ acquisitions, I help mid-market companies and growing startups achieve excellence through operational efficiency, digital transformation, and effective management workflows.

Satisfied Clients
With 20 years of business consulting, advisory, training, and running successful companies, here are some success stories that stand out.

“DevriX enabled us to deliver an entirely reimagined B2B website in under 3 weeks – from backend integrations to mobile layouts on the frontend, I was continually impressed with the team.”

Adam Sewal
VP Marketing
Verkada

“We went from a 36-core machine at almost $6,000 a month down to a four-core machine at $1,000 a month. They were doing significant traffic – 30M+ pageviews per month – and hitting a wall with scaling. We paired them with one of our trusted agency partners, DevriX.”

Sean Tierney
Director of Sales & Marketing
Pagely

“Since Dabaran partnered with DevriX, they’ve demonstrated real expertise. They aim to provide excellence with a high level of professionalism.”

Zaira Soto
Project Manager
Dabaran
Starter Resources
B2B Digital Collection
If you’re still in exploration mode or the early days of a business, I author a handful of resources available for free (or the cost of a cup of coffee).

Working with a sponsor or portfolio company?
I advise private equity firms and PE-backed mid-market leadership on technical due diligence, post-acquisition execution, and value creation. Async Advisor is the independent practice for that work.
YouTube Guides
Over 330 videos on YouTube for B2Bs discussing mid-market strategy, advisory systems, M&A, business challenges and management solutions, along with the podcast. Take a look and subscribe for upcoming videos.
The B2B Newsletter
Growth Shuttle Insider is read by 30,000+ operators and investors, including readers at CERN, Google, and Nestle. Weekly briefs on execution systems, operating leverage, and value creation across 500+ portfolio companies. Check out past editions before you subscribe.
400+ Free Articles
I’ve been authoring this blog for years, covering B2B guides and lessons for founders and executives, along with entrepreneurship and leadership tutorials for new managers and founders. Dive into the archives and keep up with the latest trends.
The “MBA Disrupted”
My bestselling book “MBA Disrupted” sold 700+ copies in the first month of launching in late May 2024 and is an indispensable guide for building 7-figure businesses from scratch, based on my own experience building a few of them and practical lessons and guides from dozens of other entrepreneurial leaders.
How to work with me
Advisory and implementation are separate businesses. The advice carries no obligation to buy the build.
For advisory, meaning technical due diligence, fractional operating work, and value creation, that is Growth Shuttle. For building, meaning technology, data, and revenue systems, that is DevriX. You can take the advisor alone, the builders alone, or both.