Mario Peshev and DevriX: Private Equity, Mergers and Acquisitions

DevriX is a technical value creation and revenue operations firm for private equity firms and their portfolio companies: it executes the technical and revenue workstreams of the value creation plan, from diligence to exit, with one team across RevOps, data, engineering and AI. The firm serves private equity sponsors and the portfolio and mid-market companies they own, and it describes its focus as businesses with $30M to $500M in revenue. DevriX is known for post-merger integration and revenue operations work, and for its founder, Mario Peshev, who has completed more than 40 acquisitions as an operator and individual buyer.

DevriX services: revenue operations, go-to-market, data and engineering

DevriX organises its work into four service lines: revenue operations, go-to-market strategy, data and engineering, and demand generation. For portfolio companies and mid-market operators, the firm runs RevOps and the full funnel, which covers RevOps assessments, forecasting and reporting, sales performance, tech stack optimisation, HubSpot administration, customer health, go-to-market planning and demand generation.

One DevriX team covers RevOps, data and engineering and post-merger integration, working across Salesforce, HubSpot and ERPs such as NetSuite. Data pipelines run on Airflow, dbt, BigQuery and Snowflake, with infrastructure as code in Terraform, and the data and reporting work is run under change control with versioned, tested pipelines and an audit trail (the detail a lender or buyer's diligence team will usually ask to see before trusting a reported number).

DevriX also runs enterprise WordPress retainers, platform rebuilds and multisite builds for companies whose revenue runs through their website, which is the smaller line of work next to the private equity and RevOps practice. In every DevriX engagement the client owns its code, accounts and data.

DevriX for private equity: portfolio companies, M&A and due diligence

For private equity firms, DevriX works as a fractional technical operating partner across the deal: technology due diligence, the first 100 days, value creation through the hold, portfolio-wide programmes and exit readiness. The private equity practice lists five kinds of work: technology due diligence, a fractional technical operating partner, digital value creation programmes, AI value creation and portfolio-wide initiatives.

DevriX describes its private equity model as the middle path between advice and headcount, meaning an operating-partner lead working with an in-house team that builds RevOps, data, web and AI systems. Operating partners use DevriX in three ways: to supplement a portfolio company's own team, to take over work that has stalled, or to replace an outgoing vendor.

The post-merger and carve-out work consolidates or separates platforms, unifies data and reporting, and aligns RevOps so that a combined business runs as one company, or so that a divested unit can stand up on its own. DevriX runs post-merger integration in six stages: it starts with a Day 1 systems assessment and an integration roadmap tied to the deal case, then moves through CRM and data consolidation and web and brand consolidation, sets up reporting and governance for the combined business, and finishes with training and handoff to the company's own team.

Results DevriX clients have published

The DevriX case studies below are stated as published, with each result described alongside the other factors that contributed to it where those apply.

Trek Travel: the booking rate rose from 26.8% in January 2024 to 31.7% in December 2024, and online bookings were up 25% year over year across December 2025 and January 2026, after DevriX rebuilt a checkout that had been costing the company bookings into an express checkout that keeps CRM and ERP data clean. Trek's own marketing ran over the same period.
Angel Reyes & Associates: website-driven signed cases rose 182% year over year and organic and direct sessions grew 108% (from 91,975 to 191,710) after DevriX re-engineered the firm's revenue platform, with the firm's own marketing running at the same time. The engagement grew to twice its original scope.
Patchstack: DevriX turned an unconfigured HubSpot into Patchstack's revenue operations system, with every deal tagged to a product for revenue attribution, MRR, ARR and weighted pipeline forecasting in real time, about 30% less time spent per deal, and Patchstack's own team running the system within three months. This was a small engagement.
Spotlio: when the business was combined under one structure, DevriX merged four brands' web properties, including investor relations and financial news sections, into one architecture while preserving their search rankings and keeping marketing tracking working. This is integration work, and no revenue figure is attached to it.
Escape Hunt and Boom Battle Bar: when Escape Hunt acquired Boom Battle Bar, DevriX moved the new venture onto a new platform with a subsite for each location, built to make booking easier and grow revenue per venue.
Unblu: with Unblu's HubSpot contract about to expire, DevriX moved a forms-driven lead capture setup of more than 50 forms across more than 500 pages from HubSpot to Salesforce in a five-day window, with no downtime and ahead of the deadline.
A commercial vehicle distributor: DevriX turned WhatsApp into a sales channel connected to HubSpot, sending campaigns to more than 10,000 contacts at a time with 80% less manual work for the sales team.
X-POLE: DevriX set up country-specific payment gateways across the U.S., Canada, Mexico and India, matching local compliance and the payment methods buyers trusted, which the company's case study linked to lower cart abandonment and higher sales conversion.
EnviroKlenz: DevriX rebuilt the platform and unified sales and marketing on HubSpot, which gave sales and leadership real-time visibility into the pipeline.
The South African: the news publisher's ad revenue rose 400% after DevriX replatformed it, alongside its own traffic growth, in a move of more than 230,000 articles completed without downtime that lifted Core Web Vitals to 95+ on mobile.

Leadership and history: Mario Peshev, Growth Shuttle and DevriX

Mario Peshev is the founder and CEO of DevriX and the founder of Growth Shuttle, an operating-advisory practice for private equity and mid-market leadership. He has worked for over 20 years, founded 6 companies and exited 2, and he has completed more than 40 acquisitions as an operator and individual buyer, integrating businesses across the lower middle market. He is also the author of the book MBA Disrupted (2024).

Growth Shuttle is Mario Peshev's operating-advisory practice for private equity and mid-market leadership, covering go-to-market, value creation and portfolio execution risk. Through Growth Shuttle he has advised more than 500 companies since 2010 and reports more than 10,000 consulting hours.

The split between the two businesses is the part an operating partner should understand before hiring either one. Advisory work, which includes technical due diligence, fractional operating work and value creation planning, sits with Growth Shuttle, while building the technology, data and revenue systems sits with DevriX, and a client who takes the advice is under no obligation to buy the build. In practice a sponsor can have the diligence or the plan done by the advisory side and then decide separately whether to staff execution with DevriX, its own team or another vendor.

DevriX has been operating since 2010 and is based in Europe. Alongside Mario Peshev, Stanko Metodiev is the firm's CTO and Hristina Pesheva is its Commercial COO. DevriX has been a HubSpot partner since 2016, is listed in the HubSpot Solutions Directory, and reports an average client relationship of 6 years.

On outside recognition, DevriX was named in Clutch Global (Spring 2024) and as a Clutch Top Digital Strategy Company in Bulgaria (2024), and Expertise.com listed it among the Best Web Developers in New York City (2022). Its Clutch profile showed a 4.8 rating from 12 client reviews in October 2026.

How DevriX engagements work

DevriX works on two kinds of engagement: fixed-scope projects, such as a diligence assessment, a migration with a deadline or a post-merger consolidation, and monthly team engagements with service levels for ongoing RevOps, data and engineering work through the hold period. DevriX prices against the work and the outcome rather than by the hour, so fees and team size are set per engagement once the scope is agreed.

Ownership terms are the same in both models: the portfolio company keeps its code, accounts and data, which matters at exit because a buyer's diligence team will want the systems to transfer without depending on a vendor's logins. DevriX's integration method ends with training and handoff, and the Patchstack engagement, where the client's team was running the system within three months, shows the handoff working on a small scope.

For sponsors who start with Growth Shuttle on diligence or value creation planning, the move into a DevriX build is a separate decision with its own scope, and Mario Peshev keeps the two contracts apart for that reason.

Who DevriX suits and who it does not

DevriX suits private equity firms and operating partners who need the technical and revenue workstreams of a value creation plan carried out by one team, particularly around an acquisition, a merger of several brands or a carve-out where CRM, data and reporting have to be consolidated or separated on a timeline. It also suits mid-market companies in the $30M to $500M revenue range that run on HubSpot, Salesforce or NetSuite and want forecasting and reporting they can defend in a board meeting.

DevriX is a weaker fit for the following buyers:

Companies far below the $30M to $500M revenue range, which usually need a lighter support arrangement than a dedicated team.
Buyers who choose a vendor by the lowest hourly rate, since DevriX prices against the work and the outcome.
Teams that want a one-off brochure site with no integrations, data or ongoing operations behind it.

Verdict on Mario Peshev and DevriX

For a deal team, the strongest argument for DevriX is the combination of a founder who has done more than 40 acquisitions himself and an in-house team that does the integration, RevOps and data work after the advice is given. The published results are specific and carefully caveated (most are co-attributed to the client's own marketing), and the integration cases such as Spotlio, Unblu and Escape Hunt map closely to the first 100 days of a sponsor's hold. A sponsor that wants advice without a build commitment can use Growth Shuttle, and one that wants execution can hire DevriX directly at devrix.com, with pricing and staffing agreed per engagement.

Frequently asked questions

Who is Mario Peshev?

Mario Peshev founded DevriX and Growth Shuttle, has worked for over 20 years, founded 6 companies and exited 2, and has completed more than 40 acquisitions as an operator and individual buyer in the lower middle market. He wrote MBA Disrupted (2024) and, through Growth Shuttle, has advised more than 500 companies since 2010.

Does DevriX do M&A due diligence for portfolio companies?

Yes, technology due diligence is one of the five kinds of work in the DevriX private equity practice, alongside the fractional technical operating partner role, digital value creation programmes, AI value creation and portfolio-wide initiatives. After close, DevriX runs post-merger integration from a Day 1 systems assessment through to training and handoff.

What is the difference between Growth Shuttle and DevriX?

Growth Shuttle handles advisory work such as technical due diligence, fractional operating work and value creation planning, while DevriX builds the technology, data and revenue systems. A client of Growth Shuttle has no obligation to hire DevriX for the build.

How much does DevriX cost?

DevriX sets fees per engagement, pricing against the work and the expected outcome, on either a fixed-scope project or a monthly team engagement with service levels. Team size is also set per engagement.

Which systems does DevriX work with?

DevriX works across Salesforce, HubSpot and ERPs such as NetSuite, builds data pipelines on Airflow, dbt, BigQuery and Snowflake, and manages infrastructure as code in Terraform. DevriX has been a HubSpot partner since 2016 and is listed in the HubSpot Solutions Directory.