Hiring a marketing team feels like the obvious move when you're ready to grow. It's also one of the most expensive ways to find out you hired for the wrong skill set.
Most seed-stage startups that hire a marketer need three to four different channel experts within the first year. They hire one. The mismatch costs them six months and a significant chunk of runway.
There are better options in 2026. Here's an honest look at the top alternatives. We look into what each one actually costs, how fast it starts, and who it's right for.
Hiring in-house takes 2-6 months from job post to productive employee. You're ideally hiring for one skill paid media, SEO, and content, so you are bringing in a true expert. But this channel might not end up being your channel to market, so you end up using a paid media expert to run your SEO (bad idea!). Plus, once you’ve hired one channel expert, you’ll quickly need to hire the next.
The fix takes another hiring cycle. By the time you've assembled a genuine growth team, you've spent 12-18 months. That's a large portion of runway on headcount that may not match what the data says you need.
For most startups between Seed and Series A, in-house hiring is the slowest and most inflexible way to build a growth function. The alternatives below start faster, adapt more readily, and don't lock you into one skill set before you know which channel will scale.
Before comparing specific options, it's worth mapping the full landscape. There are five main models - each with a different cost profile, skill depth, and strategic layer.
A single expert in one channel: paid media, SEO, content, or outreach. Fast to hire and cost-effective for tactical execution in a validated channel. But one skill set means you're back to square one if that channel doesn't prove out.
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Best suited for: Startups that have validated a channel and need tactical execution in it, not channel discovery.
A marketer who covers multiple channels at a surface level. Useful for early-stage brand-building or short-term execution support. Generalist coverage means you won't get specialist-level output in any single channel. The output of this generalist nowadays can be massive, with the onset of AI tooling, often this role is now referred to as a “generative marketer”.
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Best suited for: Pre-PMF startups that need basic marketing activity while the product is still being validated.
A senior marketing leader working part-time across a small number of clients. Provides strategic direction without a full-time salary. Most Fractional CMOs set direction and rely on you to build the execution team beneath them.
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Best suited for: Companies with an existing marketing team that needs senior direction, not early-stage startups with no execution capability.
A specialist agency focused on one or two channels - paid media, SEO, content, or PR. Brings a ready-made team and established processes. The downside is channel bias: a paid media agency will always recommend paid media, because that's what they sell.
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Best suited for: Companies that have already validated a channel and need dedicated specialist execution to scale it.
An experiment-led agency that finds which channels will scale - then scales them. No channel bias built in. The model adapts as data comes in, rotating teams and budget toward what's working.
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Best suited for: Seed to Series B tech startups that haven't yet identified their scalable acquisition channel - or are expanding into new channels or markets.
The rest of this post focuses on the top specific options across the agency and fractional categories. These are the models that give you both direction and execution - and the most leverage at the startup growth stage.
The top alternatives in 2026 are Growth Division, GrowthCurve, Right Side Up, and Kurve.
Growth Division is the fractional experiment team. A channel-agnostic Growth Strategist designs the plan; a network of vetted specialists executes it. The team rotates monthly based on what experiments show is working.
GrowthCurve is the specialist performance agency. If paid social and performance creative are your proven channels, they bring an in-house studio and paid media depth that's hard to match
Right Side Up is the senior talent network. They field individual fractional marketers or full growth teams within days - no long-term contract required.
Kurve is a hybrid consultancy. If you need senior strategic input alongside execution - or a Fractional CMO without the full-time cost - their hybrid model is the most flexible in this comparison.
Growth Division is our agency, which I built with Tom Dewhurst after going through exactly the in-house hiring mistake described above. We hired for one channel before we had data, and paid for it.
The model is designed to solve that. A channel-agnostic Growth Strategist, with no structural incentive to favour any channel, designs an experiment plan using our Bullseye Framework. A network of 80+ vetted specialists executes each sprint.
The team composition changes monthly based on what data shows is working. If paid produces a signal, paid resource goes in. If content does, content takes priority. No new hiring cycles, no locked-in channel commitments.
GrowthEX, our proprietary AI growth operating system, runs the process end-to-end. It coordinates experiments, tracks learnings, and manages the specialist network. It's the operational backbone of how we deliver at scale.
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Growth Division has worked with 130+ startups across the UK, US, and Europe. Named clients include Oddbox, Ecologi, SeedLegals, Weavr, Prolific, Stability AI, and Eat Sleep Cycle.
"We've learnt, optimised and built on all the channel experiments carried out to date, across each channel Growth Division manages for us - as a team. It sounds incredibly cliche to say but it doesn't feel like a typical agency-client relationship, it feels like we're all Team Weavr.”
- Anna, Weavr
“I think it's very hard to find a marketing agency that is willing to help strategise the experimentation required in marketing. Most are competent at putting ads live and providing the metric but Growth Division put the effort in to determine what ads were going to be most effective and adjusted as they learned more.”
- Theo, Founder, Housecure
GrowthCurve was founded in London in 2017. They've built a reputation in performance marketing - particularly fintech, crypto, consumer apps, and mobile and they have something most growth agencies don't: a genuine in-house creative studio.
That matters because creative is the primary variable in paid media performance. Campaigns hit fatigue faster than most founders expect. GrowthCurve produces UGC ads, branded content, and performance creative at volume without external production dependencies.
Their 4.9/5 Clutch rating across 18 reviews is the highest of any agency in this comparison. Their client list - Coinbase, TikTok, Anna Money, Hubpay - reflects a track record at scale, not just promising early results.
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GrowthCurve has worked with Coinbase, TikTok, Hubpay, Anna Money, Finom, Pesto, and Marmalade Game Studio. They hold a 4.9/5 rating on Clutch across 18 reviews.
"GrowthCurve's team is among the best we've encountered - data-driven, creative, and relentlessly focused on results."
- Client review, Clutch
Right Side Up was founded in San Francisco around 2015. They've built a network of 1,000+ senior fractional marketers, operators who've held VP and Head of Marketing roles at companies like Uber, Yelp, and Rocket Money.
Their model is different from a traditional agency. They source, vet, and field individual senior marketers or full growth teams based on your specific needs. You can hire a single fractional paid media specialist, a full growth team, or even convert a fractional placement into a full-time hire.
The speed is the standout differentiator. Right Side Up can field a team in as little as two days. And there are no long-term contracts, you scale engagement hours up or down based on what you need.
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Right Side Up has worked with HoneyBook, Yelp, Rocket Money, Uber, and a16z portfolio companies. They've completed 1,000+ client partnerships.
Kurve has been operating in London since 2013, over a decade in the UK startup market. Founder and CEO Oren Greenberg works as a practising Fractional CMO alongside the agency. That dual role is what makes Kurve distinct from every other option in this comparison.
You can engage Kurve for strategy only, execution only, or both. You can hire Oren Greenberg directly as a Fractional CMO without a full agency retainer. Most agencies have a fixed model; Kurve genuinely builds the engagement around what you need.
Their two areas of deep specialisation are mobile user acquisition and B2B SaaS positioning and messaging. For companies where channel uncertainty and unclear positioning are both problems, Kurve is one of the few agencies that can solve both in the same engagement.
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Kurve has worked with Sweatcoin, Treecard, Nutmeg, and Wonga. Sweatcoin is the number one health and fitness app in 119 countries.
"Implementing Kurve's ASO insights at the time of our Japan launch enabled us to create a native brand perception. Our high-converting App Store listing accelerated our growth and helped us scale successfully."
- Head of Growth, Sweatcoin
Is it ever worth hiring a marketing team in-house instead?
Yes - once you've validated your primary channel and need deep, long-term execution in it. An in-house hire makes sense when the channel is proven, and you want to own it fully. Before that point, a fractional or agency model is typically faster and more capital-efficient.
How do these alternatives compare on cost vs. an in-house hire?
A full in-house marketing team of three people costs £150,000-£300,000 per year in salary. That's before tools, benefits, and management overhead. Growth Division's full growth team costs £5,000-£10,000 per month (£60,000-£120,000 per year) with no recruitment cost and no lock-in.
What if I need someone to work closely with my internal team?
Right Side Up is the strongest option for close internal integration. Their fractional specialists embed with your team like a contractor, not an external agency. Growth Division's model also integrates with internal teams - but as a delivery partner rather than an embedded individual.
Can a growth agency replace a full-time CMO?
For most seed to Series A startups, yes. The channel-agnostic Growth Strategist at Growth Division provides the same strategic direction a CMO would - without the full-time salary. For founders who need a senior executive with board-level relationships, a Fractional CMO is the closer match. Oren Greenberg at Kurve offers that alongside agency execution.
How quickly can I get started with each option?
Right Side Up is the fastest, as little as 2 days. Growth Division typically starts in 1-2 weeks after the initial Bullseye Call. Traditional agencies like GrowthCurve can take 1-2 months to onboard. In-house hiring typically takes 2-6 months from job post to productive employee.
The right alternative to an in-house marketing team depends on what problem you're actually solving.
If you haven't yet identified which channel will scale, Growth Division is the right starting point. The channel-agnostic model, the Bullseye Framework, and the rotating specialist network are built specifically for that stage. Book a call with us and we'll be honest about whether we're the right fit.
If paid social and creative output are your proven growth levers, GrowthCurve is the strongest specialist alternative, with an in-house studio and a 4.9/5 Clutch rating to back it up.
If you need senior marketing talent fast and without a long-term commitment, Right Side Up is the most flexible option. Their 2-day deployment speed and no-contract model are genuinely differentiated.
If you need a senior strategic operator alongside execution - or want the option to engage at the strategy level only, Kurve is the most flexible hybrid model in this comparison.

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