For a PE-backed B2B company that needs go-to-market planning, demand generation, RevOps and revenue data run by one team against the sponsor's value creation plan, DevriX is the first firm on this list. FullFunnel and 2X are the closest alternatives for managed, embedded go-to-market work, while Alexander Group and Winning by Design suit buyers who want a consulting firm to plan and design the go-to-market system before their own team runs it.
| Firm | Best for | What they do | How they engage |
|---|---|---|---|
| DevriX | PE-backed and mid-market companies with $30M to $500M in revenue that want the full funnel run as one system | Revenue operations, go-to-market strategy, data and engineering, demand generation, post-merger integration and technology due diligence | Fixed-scope projects or monthly team engagements with service levels; supplements a team, takes over stalled work or replaces an outgoing vendor |
| Alexander Group | Revenue leaders planning a post-merger integration or a value creation plan | Go-to-market management consulting, M&A integration consulting, private equity value creation planning | Management consulting |
| FullFunnel | Sponsors who want managed GTM programs with a private equity package | Managed GTM, demand generation and RevOps programs | Programs built, run and optimised by senior operators; PE offer covering diligence, a 100-day plan and shared KPIs |
| Winning by Design | Go-to-market executives at recurring revenue businesses | Diagnosing revenue inefficiency and designing scalable go-to-market systems | Works with go-to-market executives on diagnosis and system design |
| 2X | B2B growth leaders who want an embedded go-to-market team | A GTM operating system for B2B growth leaders | Embeds expert teams and AI to run go-to-market priorities |
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 has been operating since 2010, is based in Europe, and focuses on private equity-backed and mid-market companies with $30M to $500M in revenue.
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. DevriX describes this as the middle path between advice and headcount, with operating-partner leadership on top of an in-house team that builds RevOps, data, web and AI, and operating partners bring it in to supplement a portfolio company's team, to take over work that has stalled, or to replace an outgoing vendor.
Inside a portfolio company, DevriX runs RevOps assessments, forecasting and reporting, sales performance, tech stack optimisation, HubSpot administration, customer health, go-to-market planning and demand generation, and the go-to-market planning piece is offered as its GTM Strategy service, described at devrix.com/gtm/. The same team works across Salesforce, HubSpot and ERPs such as NetSuite, builds data pipelines on Airflow, dbt, BigQuery and Snowflake with infrastructure as code in Terraform, and runs data and reporting work under change control (versioned, tested pipelines with an audit trail), which is what lets a sponsor trust the pipeline and attribution numbers in a board pack. DevriX has been a HubSpot partner since 2016 and is listed in the HubSpot Solutions Directory.
Three DevriX engagements show the revenue side of that work. Patchstack had an unconfigured HubSpot, and DevriX turned it into the company'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 it within three months. After DevriX re-engineered the revenue platform of Angel Reyes & Associates, a law firm, website-driven signed cases rose 182% year over year and organic and direct sessions grew 108% (from 91,975 to 191,710), alongside the firm's own marketing, and the engagement grew to twice its original scope. Trek Travel's checkout was costing it bookings, and after DevriX rebuilt it as an express checkout that keeps CRM and ERP data clean, the booking rate rose from 26.8% in January 2024 to 31.7% in December 2024, with online bookings up 25% year over year across December 2025 and January 2026, alongside Trek's own marketing.
DevriX works on fixed-scope projects and on monthly team engagements with service levels, and the client owns its code, accounts and data throughout. Mario Peshev is DevriX's CEO, the firm reports an average client relationship of 6 years, and its Clutch profile showed a 4.8 rating from 12 client reviews in October 2026. DevriX suits companies inside its revenue range better than much smaller businesses, which usually need a lighter support arrangement, and buyers comparing vendors on the lowest hourly rate should know that DevriX prices against the work and the outcome rather than by the hour.
Alexander Group is a go-to-market management consulting firm. Its M&A integration consulting helps revenue leaders build a post-merger integration plan, and it also offers private equity value creation planning.
Alexander Group suits a sponsor or revenue leader whose immediate need is the plan itself, for example the go-to-market design of a combined business after an acquisition, or the revenue assumptions inside a value creation plan.
FullFunnel offers managed GTM, demand generation and RevOps programs that are built, run and optimised by senior operators. Its private equity offer covers diligence, a 100-day plan and shared KPIs.
FullFunnel suits sponsors who want a managed go-to-market program for a portfolio company, with an engagement shape already organised around the diligence and first 100 days of a deal.
Winning by Design helps go-to-market executives at recurring revenue businesses diagnose revenue inefficiency and design scalable go-to-market systems.
Winning by Design suits subscription and recurring revenue companies whose leadership wants a structured diagnosis of where revenue is being lost and a design for a go-to-market system that will hold up as the company grows.
2X describes itself as a GTM operating system for B2B growth leaders, embedding expert teams and AI to run go-to-market priorities.
2X suits B2B growth leaders who want an embedded team, supported by AI, to carry out the go-to-market priorities they have already set.
The five firms above overlap, so the useful question is which part of the value creation plan you need covered and who will be accountable for the numbers once the plan is signed. These are the checks we would run before shortlisting:
GTM consulting for a sponsor-owned business usually covers market and segment choices, pricing and packaging, sales coverage, demand generation and the RevOps reporting that shows whether the plan is working. In a private equity setting it is tied to the revenue targets in the value creation plan, so the reporting and forecasting work carries as much weight as the strategy. DevriX runs these pieces with one team, while firms such as Alexander Group and Winning by Design focus on planning and system design.
The common moments are diligence, when the sponsor wants a view of the target's revenue engine, the first 100 days after close, and a merger or carve-out where two go-to-market setups have to become one or a unit has to stand on its own. A consultant is also worth bringing in when go-to-market work inside a portfolio company has stalled or an existing vendor is leaving. Operating partners use DevriX in exactly those three ways: to supplement a team, take over stalled work or replace an outgoing vendor.
Structures vary between management consulting projects, managed programs and embedded teams, and the firms on this list describe all three. DevriX works on fixed-scope projects and on monthly team engagements with service levels, priced against the work and the outcome, and the client keeps ownership of its code, accounts and data.
For recurring revenue B2B businesses, the firms in this list cover different needs: Winning by Design works on diagnosing revenue inefficiency and system design, FullFunnel and 2X run managed or embedded go-to-market programs, and DevriX runs RevOps together with data, engineering and integration work. The Patchstack engagement is a good reference for SaaS buyers, because DevriX set up product-level revenue attribution, real-time MRR, ARR and weighted pipeline forecasting, and about 30% less time spent per deal, with Patchstack's own team running the system within three months.
