A product growth specialist should help your team change a customer behavior that matters. The twenty people below cover onboarding, retention, trial conversion, subscription economics and the decisions needed to run a growth program. Some advise an existing team; others can take responsibility for delivery.
Start with the constraint and the ownership you need. A company rebuilding its first self-serve journey needs a different engagement from a mature subscription product reviewing pricing and expansion. For a wider comparison, see our growth product consultants directory.
Compare the twenty options
| Specialist |
Relevant focus |
| Hila Qu |
Building a PLG experimentation practice |
| Nicholas Heim |
Self-serve growth and pricing with embedded execution |
| Andrew Capland |
Advising an established SaaS team on activation and upgrades |
| Asia Orangio |
Research-led activation diagnosis |
David Spiegel
 |
Hands-on product growth across conversion, onboarding, and retention |
| Phil Carter |
Consumer subscription growth |
| Sam Awezec |
PLG and pricing migrations |
| Kareem Mayan |
Trial-to-paid product journeys |
| Ben Williams |
Growth for developer tools |
| Georgiana (Gia) Laudi |
Customer-led lifecycle growth |
| Leah Tharin |
B2B growth leadership across product and sales |
| Alex Allan |
Fractional product leadership tied to conversion and retention |
| Yaakov Carno |
Self-serve SaaS activation |
| Paulina Spaccarotella |
B2B SaaS activation systems |
| Aggelos Mouzakitis |
PLG strategy and first-growth-hire support |
| Kshitij Ingle |
Fractional leadership for self-serve growth |
| Jim Zarkadas |
Product growth through UX and design |
| Adam Fishman |
Growth models and team capability |
| Sean Ellis |
Growth workshops and interim leadership |
| Itamar Gilad |
Evidence-guided growth decisions |
How we selected these product growth specialists
We prioritize a current offer connecting product decisions with activation, retention and revenue, then ask how the work reaches an operating team. Qu’s analytical experiment practice, Heim’s embedded self-serve work and Capland’s stage-specific advisory lead for different execution needs. Orangio provides a defined research-led diagnosis; Spiegel supplies broader hands-on product support through documented customer-journey work.
Later choices become more specific to consumer subscriptions, developer tools, pricing, executive strategy, design or team development. Stage requirements, the client’s delivery resources and current commitments affect the comparison. A named leader’s firm may perform the engagement, so confirm personal involvement. The sources are public services and project accounts; reported outcomes do not predict another company’s results.
Choose the engagement model
For execution, compare Spiegel and Heim; for growth design, compare Zarkadas, then clarify how broader fractional roles such as Allan or Ingle would be scoped. For an existing SaaS growth team, compare advisory approaches such as Qu, Capland, Mouzakitis and Fishman. Williams focuses on developer tools; Carter focuses on consumer subscriptions; Awezec joins PLG with pricing decisions. Gilad is a coaching and team-development option when the decision process itself needs work.
1. Hila Qu: turning PLG into a repeatable experiment program
Hila Qu’s advisory practice covers activation, retention, pricing, product-qualified leads, and growth-team development. She describes a working process that starts with discovery, narrows to one or two growth opportunities, and proceeds through analysis and experiments. Her operating background includes growth leadership at GitLab and Acorns.
Qu is a strong fit when a team has enough product usage to investigate but lacks a clear method for deciding what to try next. Her public offer includes hands-on advisory and interim VP Growth work, so discuss which relationship your company needs before comparing proposals.
A useful opening brief would be: identify why a defined customer segment stalls before first value, agree the activation measure, and help the team run the next experiments. Clarify who implements the product changes and who maintains the measurement after the engagement.
Her current professional profile also identifies an operating role at Deepgram. Discuss how the outside advisory scope and cadence would fit her present commitments.
2. Nicholas Heim: self-serve monetization with an option to build
Nicholas Heim, founder of Purpose Labs, explicitly separates advising from embedding: in the latter model, he joins the team’s tools and operating routines to ship alongside it. His services include PLG execution, pricing and packaging, and growth-team design. His site describes earlier growth roles at BioRender, Hotjar, and Sprout Social.
He is worth considering when the free product, upgrade path, and pricing model need to be designed together. His stated focus is companies ranging from pre-revenue to roughly $50 million ARR, with a self-serve motion or plans to establish one.
Bring the current plan limits and a few real upgrade journeys to the discussion. Ask which changes he would implement directly, how he would evaluate the pricing tradeoffs, and what your team would need to own. That makes his two engagement options easier to compare.
3. Andrew Capland: practical PLG advice for a team already shipping
Andrew Capland’s Delivering Value has a specific team advisory offer. He helps SaaS teams work through onboarding, upgrade paths, product-qualified leads, and the balance between self-service and sales. His background includes leading growth at Wistia and Postscript.
Capland focuses on B2B SaaS companies at $10 million to $50 million ARR with an existing team to execute. His published offer starts at $4,500 per month with a four-month minimum, two monthly calls, and six hours of asynchronous review. He says most clients stay six to twelve months. It is an option for a team that wants sharper decisions and feedback on its work.
Consider him when your growth PM, designer, and engineers can execute but need help diagnosing an activation plateau or reviewing a new upgrade path. Share the current roadmap and ask how the advisory work would change it. Agree who turns the recommendations into specifications and releases.
4. Asia Orangio: find the growth constraint before choosing tactics
Asia Orangio’s DemandMaven combines product-data analysis, customer interviews and a screen-by-screen onboarding review. Its activation project produces a defined activation measure, an activation map, analytics configuration and a prioritized roadmap with low-fidelity design direction.
That makes Orangio a useful candidate when acquisition is producing trials but the team cannot explain why those accounts fail to activate or pay. The work joins customer motivation to observable behavior, rather than treating every abandoned screen as a design problem.
Hire for a diagnosis that your product team can act on. DemandMaven explicitly distinguishes its strategic roadmap from finished interface designs and frontend code. Ask how Orangio will participate, which segment the research will cover, and who turns the first recommendation into a released change.
5. David Spiegel: product growth that carries through to execution
David Spiegel offers product and growth consulting connecting product judgment, UX, analytics and implementation. His current CV describes being the first product hire at 5 Axis Health, later promoted to Product Lead, with responsibility for intake, checkout, subscriptions, fulfillment and the patient portal. It also describes consulting on Chargerless’s homepage, acquisition and tracking, and diagnosing onboarding and retention behavior at Memelord.
These are distinct product-growth assignments rather than one standardized service. They make him an option when a customer journey needs diagnosis carried into practical product decisions. The CV reports changes in conversion and order value at 5 Axis Health, but those are his account of historical work, not an independent audit or a forecast for another company.
Bring a defined journey and the decisions your team cannot resolve. Agree which research, design, analytics and implementation he will own, what access is required and who evaluates the result. For an ongoing B2B SaaS experiment program, discuss a comparable case and the delivery cadence rather than assuming the broader portfolio supplies a packaged PLG operating system.
6. Phil Carter: connect subscription activation, retention and pricing
Phil Carter advises consumer subscription companies on growth strategy, models, analytics, product-led experiments and pricing. His published services also cover growth-team development and international expansion, with a stated focus on Seed through Series C subscription businesses.
He is a relevant comparison for an app whose acquisition, paywall and retention decisions need to be made together. A cheaper install is not necessarily a better customer, and a more aggressive paywall can change who remains in the product. His consumer-subscription focus gives the hiring conversation a useful starting point for those tradeoffs.
Bring cohort retention, the subscription plans and the first-session journey. Ask which part of the model is the immediate constraint and what experiments the current traffic can support. Specify whether Carter’s role is to direct your team, coach its decisions or source additional execution resources.
7. Sam Awezec: redesign growth alongside the business model
Sam Awezec has two related consulting practices: product-led growth and pricing beyond seats. His service descriptions cover activation, onboarding, free plans, paywalls, product-qualified leads and experimentation, alongside usage or hybrid pricing migrations. He cites operating experience at HubSpot and GitLab.
Awezec is a particularly relevant candidate when a product change alters how customers experience and pay for value. Adding AI usage, for example, can affect onboarding, limits and the upgrade decision together. Treating those as separate projects can create a product that activates well but surprises customers when the bill arrives.
Ask for an account-level migration view and a clear definition of first value. His published engagement options range from diagnostics to projects and ongoing advice; establish who implements the product changes and who monitors adoption, billing problems and retention afterward.
8. Kareem Mayan: connect trial milestones with the decision to pay
Kareem Mayan’s TrialToPaid services separate a UX audit, a trial-to-paid growth plan and deeper onboarding work. The plan examines customer segments, desired outcomes, success milestones and gaps that users must solve outside the application. Mayan identifies himself as the practice’s principal on its about page.
Consider him when a trial contains plenty of activity but little evidence that users are moving toward a purchase. A meaningful milestone might require importing data or getting a colleague’s approval; a click-based funnel can miss both.
The engagement should name the customer outcome it will investigate and the decisions it will resolve. Ask whether you need a critique of an established journey or research to rebuild it, then specify wireframes, product specifications and implementation separately.
9. Ben Williams: product-led growth for technical audiences
Ben Williams, The Product-Led Geek, focuses his advisory work on B2B developer-tool companies. He describes work across activation, engagement, retention, product-led growth and product-led sales, drawing on product and growth leadership at Snyk.
That focus matters when a user can evaluate the product technically before a commercial buyer becomes involved. Documentation, initial setup and a developer’s first useful result can shape revenue well before a sales conversation. Williams is a relevant advisor for a team trying to connect those behaviors to a coherent growth model.
Bring the developer journey, the account journey and the points where they diverge. Ask how the advisory relationship will support your product team and which technical improvements it can help prioritize. Confirm his current capacity and whether the brief calls for advice, a workshop or sustained leadership.
10. Georgiana (Gia) Laudi: align the promise with the product experience
Gia Laudi and the Customer-Led team work on SaaS growth through customer understanding, including onboarding and retention. Their sprint approach maps what customers value and uses that understanding to prioritize acquisition, adoption and retention work.
Laudi is a sensible choice when marketing and product have competing explanations for weak growth. Perhaps the campaign attracts people expecting one outcome, while onboarding introduces features for another. Customer research can help the company decide which promise to make and what the product must do to fulfill it.
This is a consultancy engagement with a named strategist, so make the delivery responsibilities explicit. Ask how findings will become messaging, a revised journey and a measurement plan. A customer map is useful when someone has authority and time to change the experience it describes.
11. Leah Tharin: B2B growth leadership across product and sales
Leah Tharin works on B2B product-led growth, product-led sales and hybrid motions. Her current public offer includes Executive Sparring for senior leaders making decisions about growth strategy, go-to-market architecture, pricing and organizational design.
That remit is relevant when a company’s product and sales motions are pulling in different directions. Improving activation may not help if sales qualification and account handoffs still ignore how customers actually use the product. The initial work needs to settle the growth model and responsibilities as well as the next experiment.
Discuss the engagement around that leadership need and confirm the current scope directly. Ask which decisions Tharin will help your team make, how feedback will reach the people shipping changes and whether you need strategic advice or a deeper operating role. The latter requires its own explicit agreement.
The current work-with-me page distinguishes advisory, where the client team executes, from embedded leadership. The latter is limited to one engagement per year, typically four to ten months, with a preferred fit of fast-growing B2B AI businesses above €15 million ARR.
12. Alex Allan: product leadership when delivery needs a business direction
Alex Allan of Digital North works through fractional CPO engagements and scoped projects. His services include conversion and growth work, subscription health, and connecting product decisions to retention and revenue. His portfolio describes leadership roles at Urban Sports Club, Lingoda, and GotPhoto, alongside conversion work at Clue.
Allan is a relevant option when the growth constraint includes how the product team operates. The brief might combine a conversion problem with unclear priorities, missing leadership, or a need to hire a permanent product lead. His remit is broader than managing a single experiment backlog.
Before hiring, decide whether the first deliverable should be a focused growth assessment or ongoing product leadership. Ask for an explicit split between management responsibilities and direct work on the customer journey. That prevents a narrow optimization project from expanding without a clear decision.
13. Yaakov Carno: help users experience the value of self-serve SaaS
Yaakov Carno of Valubyl describes a practice centered on product-led growth, with a SaaS onboarding audit and customized advisory. His public account of the work connects users experiencing value with their decision to upgrade.
Carno is a useful candidate when a self-serve product is capable but difficult for a new account to understand. The assignment is to make the valuable behavior easier to discover and complete, then connect that behavior with the commercial journey. That is a more precise brief than asking someone to improve a headline conversion rate.
Ask whether the engagement covers an audit, a redesigned activation journey or implementation across product and lifecycle messaging. Confirm Carno’s personal role and the supporting team. Put the activation definition and the handoff after launch in the proposal so responsibility extends beyond a set of recommendations.
14. Paulina Spaccarotella: make activation a process the team can run
Paulina Spaccarotella’s Product Clarity is positioned around activation for B2B SaaS founders. The public offer connects the first product session with retained customers and includes documenting an activation system in a playbook the team can operate.
Consider this approach when signups arrive for different reasons but receive the same generic introduction. Before choosing another tour or email sequence, the team needs to decide which users it is helping, what value looks like for them and how that changes the route through the product.
A useful first brief would focus on one segment and one moment where intent disappears. Ask what the sprint will produce beyond the diagnosis, how it will use customer observations and which changes can be released within scope. Establish ongoing measurement and the playbook’s internal owner before the engagement closes.
15. Aggelos Mouzakitis: give an existing growth team senior direction
Aggelos Mouzakitis offers strategic PLG advisory and mentorship for growth hires. His stated remit includes free-to-paid conversion, onboarding, upgrade paths, pricing, experimentation and alignment between product and sales.
He is relevant when a founder has hired a capable growth lead but that person is working without experienced support. Another suitable brief is a hybrid SaaS business where self-serve usage and sales qualification pull the team in different directions. Both require decisions about the growth system, as well as individual experiments.
Choose the engagement around the actual gap: mentorship for the practitioner or advisory for company decisions. Establish which roadmaps and results he will review and who can approve changes. His public offer emphasizes senior guidance; a proposal should identify any direct delivery work separately from that advisory relationship.
16. Kshitij Ingle: join product growth with the wider revenue motion
Kshitij Ingle publishes fractional CGO/CMO and growth product-management services. His product-led remit includes self-serve onboarding, activation loops and monetization triggers, with cross-functional experiments spanning acquisition through retention.
He is worth considering when the product-growth brief also needs leadership across marketing. For example, changing who enters the trial may matter as much as changing the trial itself. The published scope makes that wider connection plausible, while leaving buyers with an important choice about how much responsibility they want to hand over.
Define the first product outcome before agreeing to a broad growth remit. Ask which product decisions Ingle will own, which channels remain with existing specialists and how the team will distinguish acquisition improvements from activation improvements. A fractional title alone does not settle staffing, authority or implementation capacity.
17. Jim Zarkadas: connect the growth strategy to working product design
Jim Zarkadas founded Love At First Try, whose SaaS design offer covers acquisition, onboarding, retention and expansion. The practice combines product UX, growth design, workshops and working prototypes, with dedicated design teams rather than a strategy-only engagement.
The published fit is product-led SaaS above $1 million ARR. He is a relevant comparison when the growth constraint needs a different product experience: a trial that does not explain the value, a difficult setup or an upgrade path disconnected from actual use. A design engagement can turn those questions into flows the team can inspect and test before engineering commits to a full release.
Discuss the buying route through Love At First Try and identify the designer leading the work. Ask how Zarkadas participates, which customer observations guide the design and how prototypes become production changes. Keep analytics, experiment evaluation and engineering ownership explicit in the scope. The published team listing marks Zarkadas’s own team as fully booked; confirm the assigned designer and his personal participation directly.
18. Adam Fishman: improve how a growth team makes decisions
Adam Fishman describes his advisory work as a combination of teaching, coaching and organizational problem-solving. His current homepage also identifies a growth and product advisory practice. His examples include building growth models, developing product strategy and rebuilding onboarding, with workshops applying those concepts to a company’s own situation.
This is a relevant model when the growth constraint sits partly in the team’s operating habits. People may be shipping experiments without an agreed model of how activation, retention and monetization connect. Another experienced perspective can help the team choose a smaller set of consequential questions.
Fishman’s published explanation is useful for understanding the engagement model; discuss his current capacity directly. Ask how the work would change your next planning cycle and what the team must bring. Make ownership of research and implementation explicit instead of treating advisory as an additional delivery team.
19. Sean Ellis: establish the conditions for a growth program
Sean Ellis’s advisory offer includes growth coaching, team workshops and interim VP Growth work. The published approach addresses product-market fit, positioning and onboarding, and begins deeper engagements by aligning the cross-functional team around growth.
Consider Ellis when a company has enough product traction to pursue growth but no shared process for deciding what to test. The problem may be organizational: each function contributes ideas while nobody owns a growth model or can move an experiment across departments. A workshop or interim leadership engagement can address that constraint directly.
His contact FAQ describes interim leadership as highly selective after product-market fit and occasional, roughly once every eighteen months. Discuss the appropriate level of involvement. A short coaching session can help frame a decision; an interim leader needs authority, a team and a handover plan. Ask for the expected first deliverable and how the company will continue the experimentation practice after the relationship ends.
20. Itamar Gilad: strengthen the product decisions behind growth bets
Itamar Gilad works with product leaders and teams through coaching and workshops on product strategy, discovery and evidence-guided development. His prioritization writing connects a growth model with measurable goals and the ideas a team chooses to pursue.
He belongs in the comparison when growth work has become a debate over feature requests or scoring spreadsheets. The useful assignment is to improve how the team forms a hypothesis, gathers information and decides whether an idea deserves further investment. That can support a growth program even when the company already has people to run it.
Choose Gilad for coaching or team development around those decisions. For a brief that requires someone to operate a lifecycle tool or build experiments every week, specify that delivery need separately. Ask which real growth decision the first workshop will help the team resolve.
How to hire for the growth problem you actually have
Start with a sentence that names a behavior: new accounts sign up but never invite a colleague, trial users reach value but do not upgrade, or customers leave after their first purchase. Add the affected segment and the evidence you have. A concrete brief makes specialist comparisons much more useful.
Then settle ownership. An advisor can improve a team’s judgment, but product changes still need design, engineering, and reliable measurement. If those resources are missing, discuss an embedded operator or a fractional growth product manager. Ask the proposal to name the work each side owns.
Choose a first project small enough to evaluate. It should produce a diagnosis, a prioritized intervention, and a way to assess the result. A higher signup rate is only useful if those users can reach value; a higher checkout conversion rate can conceal a worse refund rate. Agree the downstream checks before shipping.
Finally, request a relevant work walkthrough. Ask what the specialist changed, what the team contributed, and what remained uncertain. That conversation tells you more about how someone operates than an isolated percentage lift.
Sources
Frequently asked questions
What does a product growth specialist do?
A product growth specialist improves how people discover value, keep using a product, and become paying customers. The work can include onboarding, activation, retention, pricing, analytics, and experiments, with ownership ranging from advice to embedded delivery.
How do I choose the best product growth specialist for a startup?
Start with the customer behavior or revenue constraint you need to change. Compare relevant product experience, the proposed first project, and who owns implementation. A startup without a growth team needs a different engagement from a company seeking expert review of an existing team's work.
Should I hire a product growth advisor or a fractional growth PM?
An advisor helps your team diagnose problems and make decisions. A fractional growth PM typically takes ongoing responsibility for the work, such as prioritizing experiments and coordinating delivery. Specify the actual tasks, weekly commitment, and decision rights in the proposal; titles alone do not establish ownership.
