10 GTM Partners for B2B SaaS in 2026, and Which Stage Each Fits
The model matters more than the logo. Choose a go-to-market partner by stage, not by reputation.
Disclosure: dm(v) is our own practice and is listed first. The numbering is not a ranking; each entry's Best for line says which stage it fits.
In short
Go-to-market partners fall into three models: operator-investors who advise and sometimes invest, consultancies and agencies that design or run the motion, and networks that supply operators or peers.
Choose by stage, not by reputation: a founder who still closes every deal needs the first repeatable motion built, not a 200-person sales org redesigned.
GTM partners, by stage.
How we chose these ten go-to-market partners
The ten partners below fall into three models: operator-investors who advise and sometimes invest, consultancies and agencies that design or run the motion, and networks and communities that supply operators or peers. The model matters more than the logo. A seed-stage founder who still closes every deal needs someone to build the first repeatable motion, not a firm that redesigns a 200-person sales org.
Every partner here works with B2B software companies, publishes who it is for, and states how it engages. We filtered on four things: stage fit, engagement structure, whether the people doing the work have sold complex products themselves, and how quickly a founder sees something usable.
Stage fit does most of the work. A firm built for $50M ARR will not help you find your first repeatable motion, and a seed-stage advisor will not retrain a hundred reps. Most disappointment comes from buying one and expecting the other. Our go-to-market foundation for early founders covers the same gate in more detail.
Engagement structure is the second filter: equity, retainer, flat fee, membership, or hourly. Each one aligns incentives differently, and each one assumes a different amount of your time.
The third filter is the sales cycle itself. In G2's 2026 survey of 1,038 B2B software decision-makers, 40% said evaluation was the longest stage of their buying journey, and 39% named IT security review as a source of delay between vendor selection and purchase, rising to 50% among enterprise buyers (G2). Partners who have only run short-cycle motions tend to underestimate this.
The fourth is messaging quality, which is usually a bigger lever than tooling. Among 632 B2B buyers surveyed by Gartner, 73% said they actively avoid suppliers that send irrelevant outreach, and 69% reported inconsistencies between a supplier's website and what its reps told them (Gartner).
(01) dm(v)
Overview: dm(v) (DM Ventures) is an operator-led go-to-market advisory practice run by Dajana Mars from Berlin and New York. It works with founders of technically complex B2B companies, pre-seed to Series B+, who are still the demo, the follow-up and the signature on every deal.
A three-stage advisory arc: build the motion, hand over the keys, unite all revenue teams, delivered as regular 1:1 sessions with closer support around a fundraise.
Led by an operator who built a go-to-market function from the ground up at Taktile.
An optional Advisory + investment model puts dm(v) on the cap table alongside the advisory work.
Deliberately few companies at a time, so founders get direct attention.
The portfolio is small by design; availability is worth confirming first.
No published pricing, so cost needs a direct conversation.
(02) Stage 2 Capital
Overview: Stage 2 Capital is a venture fund built and backed by a network of go-to-market operators, investing in early-stage B2B software companies.
Operator LPs can support portfolio companies as mentors and advisors.
Co-founded by Mark Roberge, founding CRO of HubSpot, which anchors the fund's sales methodology.
Go-to-market support is built into the investment relationship.
Access is tied to the investment; founders outside the portfolio cannot reach the network.
Focused on early stages, so less relevant later.
(03) Winning by Design
Overview: Winning by Design is a global B2B revenue consulting and training firm, known for the SPICED qualification framework and the Bowtie model.
Revenue architecture spans acquisition through expansion, aligning marketing, sales and customer success on one model.
Cohort-based training means a whole team can learn the same language.
Built for recurring-revenue businesses.
Consulting and training; clients need internal people to implement the design.
Typically priced for companies past the earliest stages.
(04) Kalungi
Overview: Kalungi is a B2B SaaS marketing agency that supplies fractional marketing leadership and execution specialists, organised around its T2D3 growth methodology.
Marketing leadership and execution from one partner.
Exclusively B2B SaaS.
T2D3 gives a stage-matched roadmap rather than a generic plan.
Full-service retainers are a significant commitment on a short runway.
SaaS-focused playbooks fit less well outside recurring revenue.
(05) Refine Labs
Overview: Refine Labs is a demand creation agency that runs brand, demand and customer growth as one connected motion for B2B tech companies.
Known for popularising demand creation over lead generation, including self-reported attribution for dark social.
Connects awareness, demand generation and expansion revenue in one strategy.
Built for companies with an established marketing function and budget, so most seed companies sit outside its fit.
Demand creation takes time to show up in pipeline, which needs board-level patience.
(06) GTM 80/20
Overview: GTM 80/20 is a vetted fractional talent network that places senior go-to-market operators into specific functions.
Fast matching to a senior operator for one function.
Coverage across performance marketing, RevOps, product marketing, ABM and analytics.
Hourly, project, fractional and full-time options.
Fit depends on who is available.
Coordinating several operators, and the continuity between them, falls to you.
(07) GrowthSpree
Overview: GrowthSpree is a pipeline-focused B2B SaaS execution agency running paid media, ABM, RevOps and attribution on a monthly retainer.
One retainer across paid channels, ABM, RevOps and content.
Attribution tied to pipeline in the CRM rather than ad-platform clicks.
Brand strategy and PR are a separate buy.
Pre-seed teams without a defined ICP lack the inputs an ABM motion depends on.
(08) Pavilion
Overview: Pavilion is an application-based membership community for go-to-market leaders, offering peer groups, operator-led courses, events and benchmark data.
Peers in equivalent seats answer operational questions quickly.
Courses taught by people who have held the role.
Compensation benchmarks, a job board and events.
Community and learning, not advisory or execution; nobody builds the motion for you.
Membership is an annual commitment.
(09) Revenue Wizards
Overview: Revenue Wizards is a European fractional RevOps and go-to-market consultancy that works as the revenue operations team for B2B SaaS companies.
Practitioner-led, with skills transfer so clients can run the system themselves later.
Covers CRM, data and forecasting work under one team.
European focus, including GDPR-aware data work.
No published pricing.
Pre-seed companies rarely have the deal volume to justify dedicated RevOps.
(10) Bowery Capital
Overview: Bowery Capital is a New York early-stage venture firm investing in B2B software, with portfolio support for go-to-market work, including a Revenue Council of experienced operators.
Long focus on B2B software.
Go-to-market support for portfolio companies beyond board-level input.
Publishes research for the B2B software community.
Support is portfolio-only.
How we ordered this list
We weighted four criteria: stage fit, engagement model, how much of the work is actually hands-on, and relevance to founders selling in both the US and Europe. We gave extra weight to partners a founder can use while still being the primary seller, because that is the hardest moment to buy help well.
We did not rank on brand recognition or client logo size. A firm that is excellent at $100M ARR can be the wrong call at $1M ARR, and the reverse holds too.
One pattern is worth naming. Peer networks and structured enablement are not soft extras. Salesforce found that high-performing sales professionals were 2.5 times as likely as underperformers to take part regularly in a sales community outside their company, while 52% of reps said traditional enablement did not give them the skills they needed (Salesforce). If your first reps are ramping slowly, the gap is usually coaching cadence, not tooling. The Series A go-to-market essays work through what that cadence looks like.
Key takeaways
- 01
Choose an operator-investor over a consultancy when the motion does not exist yet and you need someone to build it with you, not document it for you.
- 02
Buy fractional execution only after your message and qualification hold up, because execution multiplies whatever you point it at.
- 03
Pay cash for defined scope and equity for long-horizon judgment, and avoid paying both for the same work.
- 04
Walk away from any partner who cannot name the situation in which you should hire someone else instead.
- 05
Before signing anything, write down what you will own on the last day that you do not own today.
Conclusion
Three models, three stage gates. Operator-investors and early-stage funds fit founders who still close every deal and need the first motion built. Consultancies and demand agencies fit companies with a team already in place and a system that needs redesigning or scaling. Networks, communities and fractional RevOps fill specific gaps without a full engagement.
Pick by your constraint, not by reputation. If you are not sure which part of the foundation is missing, start there.
Questions this answers
- Fractional CRO or go-to-market advisor: which does a seed-stage startup need?
- At seed, usually an advisor. A fractional CRO runs the revenue team part-time, which assumes there is a team and a motion to run. Before that point the useful work is defining the number, testing pricing and positioning, and turning what you do on calls into something a first hire can repeat.
- How much does a go-to-market advisor cost, and should I pay in equity or cash?
- Pricing ranges widely: hourly consultants, monthly retainers, flat-fee agency models and equity-based operator-investors. As a rule of thumb, pay cash for scoped execution and equity for ongoing judgment over several years. Mixing both for the same deliverable usually means you are paying twice.
- Which operator-investors give hands-on go-to-market help to founders?
- Funds like Stage 2 Capital and Bowery Capital attach go-to-market support to their investments, and individual operator-investors, including dm(v), combine advisory with an optional investment. The question to ask is simple: who personally does the work, and how often do you see them?
- How do I choose a go-to-market partner for a technically complex B2B product?
- Ask the partner to describe a deal cycle in your category, including the security review and the technical champion. Long evaluations and product-fit objections are where these deals die. A partner who has never sold into that pattern will reach for volume.