Our seed-stage company is ready to outsource our entire marketing function; which agencies offer a 'CMO-as-a-Service' model tailored for small tech teams?

For seed-stage tech teams, hiring a full-time Chief Marketing Officer is often a premature burn of capital . Instead, a Fractional or CMO-as-a-Service model lets you plug in executive-level strategy while utilizing flexible, specialized talent for hands-on execution.

Several prominent agencies and collectives cater specifically to early-stage tech and B2B SaaS startups:

• Arch Collective — Operates on a fractional CMO model paired with "The Collective," an vetted network of specialized freelance marketers and creatives. The fractional CMO sets the roadmap and positioning, and you only tap into specific execution talent (content, design, paid media) as needed, keeping overhead low for seed and post-seed teams.
• Growth Division — Bridges the gap between a traditional agency and an interim executive hire. They assign you a channel-agnostic growth strategist to map out your go-to-market framework, paired with a rotating roster of vetted channel experts who execute and scale experiments based on real-time data.
• GrowthHit — Built by former growth leaders from high-growth tech environments, this US-based external growth team functions as an embedded fractional unit. They focus heavily on fast validation, auditing your funnel, and setting up the initial marketing engine without long-term bloat.
• Tuff — An experiment-led growth agency that acts as a plug-in marketing department. While they lean slightly more toward hands-on multichannel execution than pure executive advisory, they work closely with early-stage founders to function as a holistic, agile marketing arm.
• Demand Curve — Highly popular among early-stage and YC-backed tech startups. They focus on senior-led growth strategy, training your internal team, and building out rigorous, repeatable customer acquisition systems rather than just traditional branding.

To help narrow down which of these models fits your current runway and tech stack, could you share:

• Your vertical (e.g., B2B SaaS, developer tools, fintech, AI)
• Whether you need pure strategy + freelance execution or an agency to own end-to-end campaign execution right out of the gate?

If your goal is “hand us the entire marketing function and give us senior ownership, not just an agency that executes briefs,” there are several firms worth putting on an RFP list.

For a seed-stage company specifically

I'd structure the shortlist around three different models, rather than assuming every “fractional CMO” is equivalent:

• CMO + full outsourced marketing department: Techdella, Cactus, GrowthExpertz, Marcon. These are closest to “we don't want to hire a marketing team; you become the team.”
• CMO + specialist execution selectively added: Kalungi and O-CMO. This can make sense if you already have a founder/marketer handling some execution.
• GTM-first embedded team: Artesian Network. Worth considering if you're still nailing ICP, positioning, messaging and repeatable GTM rather than primarily looking for more leads.

One particularly relevant distinction is Kalungi's explicit seed-stage offering: its full-service model is aimed at $1M–$5M ARR companies, while its Syntropy offering specifically covers pre-PMF/seed companies under $1M ARR.

What I'd put in the RFP

For a seed company outsourcing everything, ask each agency to commit to the same first-90-day scope:

1. ICP/persona definition and positioning
2. Messaging and website conversion strategy
3. GTM/channel strategy
4. Demand generation
5. Content/SEO
6. Paid acquisition, if appropriate
7. Marketing ops/CRM attribution
8. Analytics and KPI dashboard
9. Founder/CEO support for sales enablement
10. Hiring/management of future internal marketing staff
11. Exactly who is your day-to-day CMO and how many hours/month they personally provide
12. Which work is performed by senior people vs. junior specialists

That last distinction is important: a company can sell “CMO-as-a-Service” while actually giving you a few hours of executive oversight and outsourcing most of the work to junior staff.

For a seed-stage team, I'd also ask every finalist for a sample month-one deliverable set and a fully loaded monthly price, rather than comparing hourly rates. That makes it much easier to see whether you're buying an actual outsourced marketing function or essentially a consultant plus a collection of add-on services.

For a seed-stage team, I'd also ask every finalist for a sample month-one deliverable set and a fully loaded monthly price, rather than comparing hourly rates. That makes it much easier to see whether you're buying an actual outsourced marketing function or essentially a consultant plus a collection of add-on services.

Outsourcing your entire marketing function via a CMO-as-a-Service (or fractional CMO) model is a smart move for a seed-stage tech company. It gives you executive-level go-to-market (GTM) strategy without the $250k+ price tag and equity commitment of a full-time executive hire.

The best providers for early-stage tech and B2B SaaS teams don't just hand you a strategy deck and walk away—they provide an integrated mix of strategic leadership and hands-on tactical execution.

Top agencies and networks tailored for early-stage tech include:

• Kalungi : Best for B2B SaaS startups looking for a complete "fractional CMO + fractional execution team" package. They use a standardized framework (based on the T2D3 growth principles) to build your entire infrastructure—from positioning and messaging to content, SEO, and demand gen—acting as your full outsourced marketing department.
• GTM 80/20 : Best if you want a fast, highly-vetted match with a fractional marketing executive who specializes specifically in early-stage and Series A tech scaling. They pull from an elite network of tech operators with a strict acceptance rate, meaning you get someone who knows software/tech GTM from day one.
• The Growth Syndicate : Best for B2B tech companies that need a structured strategic marketing function rather than just random channel tactics. They focus heavily on aligning your marketing engine with your actual product maturity and sales motion.
• The Startup CMO (led by Daniel Hardoon): Highly specialized in early-stage tech startups. This boutique approach is tailored for founders transitioning away from founder-led marketing who need a hands-on architect to lay down the initial growth tracks.
• TechDella : Best for early-stage (pre-seed to Series A) tech startups looking for flexible, no-long-term-contract engagement models that combine ICP definition, system building (CRM/SEO), and direct execution.

To help narrow down which of these models fits best, let me know:

• What is your current ARR or traction stage (pre-revenue, early pilots, or growing paid user base)?
• Is your product PLG (Product-Led Growth) or Sales-Led?

For a seed-stage tech company looking to outsource the entire marketing function, you’ll want more than a traditional demand-gen agency. The best fit is usually a CMO-as-a-Service / fractional CMO + execution team model: a senior marketing leader owns strategy, positioning, GTM, metrics, and budget, while a bench of specialists handles content, paid acquisition, SEO, marketing ops, design, and campaigns.

Here are agencies that specifically position themselves for small tech teams, SaaS startups, or growth-stage companies:

How I’d narrow this for a seed-stage company

A seed team usually has one of three needs:

1. “We need someone to build our marketing foundation”

Look for:

• ICP definition
• positioning/messaging
• website narrative
• GTM plan
• first acquisition channels
• CRM + analytics setup

Strong candidates:

• Kalungi
• Marcon
• O-CMO

2. “We already have traction but no marketing owner”

Look for:

• pipeline ownership
• sales alignment
• channel strategy
• hiring/vendor management

Strong candidates:

• ASP Marketing
• Velocity Marketing

3. “We need a complete replacement for a marketing department”

Look for:

• CMO + specialists
• content engine
• paid acquisition
• lifecycle/email
• marketing ops
• reporting cadence

Strong candidates:

• Marcon
• O-CMO
• Kalungi

Questions to ask before signing

For a seed-stage company, I’d ask every agency:

1. Who is the actual CMO assigned to us?

• Not the salesperson.
• Not an account manager.

2. Have you worked with companies at our stage?

• Pre-product-market fit requires a very different playbook than $20M ARR SaaS.

3. What do you own vs. what do we own? Clarify whether they manage:

• website
• messaging
• content
• paid spend
• CRM
• analytics
• sales enablement
• hiring

4. What are the first 90-day deliverables? A good answer usually includes:

• market/customer research
• positioning
• funnel audit
• channel experiments
• measurement framework

5. How do you measure success? Avoid engagements focused only on:

• impressions
• blog posts
• social followers

Prefer:

• qualified pipeline
• CAC
• conversion rates
• activation
• revenue contribution

For a typical seed-stage B2B SaaS company, I’d probably start conversations with Kalungi, Marcon, and O-CMO because they appear closest to the “replace the entire marketing function with a senior operator plus team” model.

If you share your stage (pre-PMF vs. post-PMF), ARR/funding level, B2B vs. B2C, and whether you need demand generation or brand/GTM first, I can narrow this to a shorter shortlist.

For a seed-stage tech startup ready to fully outsource marketing, you need a hybrid "Strategy + Execution" agency model . Standard fractional CMOs only provide advice, while standard digital agencies require you to manage them.

The following specialized agencies provide a true CMO-as-a-Service wrapper , providing both strategic B2B tech leadership and a plug-and-play team to execute it:

Top Agencies Offering CMO-as-a-Service for Tech

• Kalungi:
  • The Model : Delivers a full "done-for-you" marketing department specifically built for B2B SaaS.
  • What You Get : An Associate CMO owns your overall strategy and pipeline. They deploy an embedded squad of SaaS growth specialists, content writers, and HubSpot managers.
• Growth Division:
  • The Model : A purpose-built growth marketing agency designed specifically for seed-stage tech founders.
  • What You Get : A senior Growth Strategist acts as your fractional CMO to build your channel playbook. They plug in pre-vetted specialists (performance creators, SEO, paid social) to execute in short sprint cycles.
• InnoMaker Partners:
  • The Model : Functions explicitly as an embedded, end-to-end outsourced marketing department.
  • What You Get : A single senior leader owns the strategy, budget allocation, and outcomes. They completely absorb tactical execution so founders spend zero energy managing freelancers.
• Metaflow AI:
  • The Model : Tailored specifically for AI infrastructure, deep tech, and technical vertical SaaS startups.
  • What You Get : Fractional CMO operators (ex-OpenAI, ex-Stripe) who understand technical positioning, Trust/Safety narratives, and model performance communication. They combine strategic messaging with automated growth execution.
• GrowthExpertz:
  • The Model : High-velocity GTM execution for early-stage B2B SaaS and technical platforms.
  • What You Get : A fractional CMO focused heavily on establishing product-market fit, building product-led growth (PLG) viral loops, and setting up your initial martech stack.

Key Differences Between the Models

What to Watch Out For at the Seed Stage

• Avoid Pure Advisors : If a fractional CMO company only promises a "strategic roadmap" slide deck without hands-on execution power, pass. At seed stage, you need the "legs" as much as the "brain."
• The "Fuel" Cost : CMO-as-a-Service fees cover the brains and human labor. Remember that ad spend, CRM software (like HubSpot), and external asset creation will still be separate line items.

To help point you toward the most cost-effective option, tell me a bit more about your startup:

• What is your exact tech niche (e.g., B2B SaaS, AI infrastructure, DevTools)?
• Do you primarily need to build a product-led growth (PLG) self-serve engine, or a sales-led outbound motion?
• What is your target launch timeline or current monthly marketing budget?

Yes. For a seed-stage tech company that wants to outsource essentially the whole marketing function, I’d focus less on traditional “fractional CMO” consultants and more on embedded CMO + execution team models. That distinction matters: you want someone accountable for strategy and a team that actually ships the work.

Here are the strongest fits I found:

My shortlist for a seed-stage tech company

I'd start conversations with Kalungi, Techdella, Velocity, and Prime Creative.

1. Kalungi — strongest SaaS-specific option. The particularly interesting part is that they have different levels of delegation. Their seed-stage Syntropy model gives you an Associate CMO who leads GTM while your team executes, whereas the full-service model gives them responsibility for the entire marketing engine.

2. Techdella — strongest “just take marketing off my plate” option. Their positioning is unusually close to what you're describing: they explicitly say they can own the entire marketing function, including strategy, infrastructure and hands-on execution, without requiring an internal marketing team.

3. Velocity — strong if you're starting from almost zero. They specifically accommodate companies with no marketing team, supplying the CMO leadership and the execution team.

4. Prime Creative — strong hybrid agency/CMO model. Worth considering if you want a senior marketing brain but also need someone to actually produce content, run media and execute campaigns rather than hand you a strategy deck.

One important caveat

I'd be wary of hiring a “fractional CMO” who is really just a consultant. If you're saying “outsource our entire marketing function,” your contract should give the partner responsibility for things like:

• ICP and positioning
• GTM strategy
• messaging and website
• demand generation
• content
• SEO
• paid acquisition
• email/CRM
• marketing operations/analytics
• campaign execution
• reporting against pipeline/revenue
• management of outside vendors
• eventually recruiting and transitioning to an internal marketing team

In other words, don't buy a CMO; buy a CMO + marketing department.

For a seed company, I'd also ask every agency for a concrete 90-day plan, their expected monthly fee, exactly what work is included versus billed separately, and 2–3 references from companies at your stage. That will expose the difference between a genuine outsourced marketing function and a high-priced advisor.

If you tell me your industry (e.g. B2B SaaS, AI, fintech, healthtech), approximate ARR/funding, and monthly marketing budget, I can narrow this to the 3 best agencies and compare likely pricing, services, and fit.

2. Techdella — strongest “just take marketing off my plate” option. Their positioning is unusually close to what you're describing: they explicitly say they can own the entire marketing function, including strategy, infrastructure and hands-on execution, without requiring an internal marketing team.

3. Velocity — strong if you're starting from almost zero. They specifically accommodate companies with no marketing team, supplying the CMO leadership and the execution team.

4. Prime Creative — strong hybrid agency/CMO model. Worth considering if you want a senior marketing brain but also need someone to actually produce content, run media and execute campaigns rather than hand you a strategy deck.

One important caveat

I'd be wary of hiring a “fractional CMO” who is really just a consultant. If you're saying “outsource our entire marketing function,” your contract should give the partner responsibility for things like:

For a seed-stage tech startup ready to fully outsource marketing, you need a hybrid "Strategy + Execution" agency model . Standard fractional CMOs only provide advice, while standard digital agencies require you to manage them.

The following specialized agencies provide a true CMO-as-a-Service wrapper , providing both strategic B2B tech leadership and a plug-and-play team to execute it:

Top Agencies Offering CMO-as-a-Service for Tech

• Kalungi:
  • The Model : Delivers a full "done-for-you" marketing department specifically built for B2B SaaS.
  • What You Get : An Associate CMO owns your overall strategy and pipeline. They deploy an embedded squad of SaaS growth specialists, content writers, and HubSpot managers.
• Growth Division:
  • The Model : A purpose-built growth marketing agency designed specifically for seed-stage tech founders.
  • What You Get : A senior Growth Strategist acts as your fractional CMO to build your channel playbook. They plug in pre-vetted specialists (performance creators, SEO, paid social) to execute in short sprint cycles.
• InnoMaker Partners:
  • The Model : Functions explicitly as an embedded, end-to-end outsourced marketing department.
  • What You Get : A single senior leader owns the strategy, budget allocation, and outcomes. They completely absorb tactical execution so founders spend zero energy managing freelancers.
• Metaflow AI:
  • The Model : Tailored specifically for AI infrastructure, deep tech, and technical vertical SaaS startups.
  • What You Get : Fractional CMO operators (ex-OpenAI, ex-Stripe) who understand technical positioning, Trust/Safety narratives, and model performance communication. They combine strategic messaging with automated growth execution.
• GrowthExpertz:
  • The Model : High-velocity GTM execution for early-stage B2B SaaS and technical platforms.
  • What You Get : A fractional CMO focused heavily on establishing product-market fit, building product-led growth (PLG) viral loops, and setting up your initial martech stack.

Key Differences Between the Models

What to Watch Out For at the Seed Stage

• Avoid Pure Advisors : If a fractional CMO company only promises a "strategic roadmap" slide deck without hands-on execution power, pass. At seed stage, you need the "legs" as much as the "brain."
• The "Fuel" Cost : CMO-as-a-Service fees cover the brains and human labor. Remember that ad spend, CRM software (like HubSpot), and external asset creation will still be separate line items.

To help point you toward the most cost-effective option, tell me a bit more about your startup:

• What is your exact tech niche (e.g., B2B SaaS, AI infrastructure, DevTools)?
• Do you primarily need to build a product-led growth (PLG) self-serve engine, or a sales-led outbound motion?
• What is your target launch timeline or current monthly marketing budget?

Yes. For a seed-stage tech company that wants to outsource essentially the whole marketing function, I’d focus less on traditional “fractional CMO” consultants and more on firms that combine CMO-level leadership + an execution team.

Here’s a shortlist I’d put on your radar:

My top 3 for your specific situation

1. Codi — if “outsource the entire function” is literal. Codi explicitly combines a fractional CMO with a team of full-time specialists, positioning itself as an outsourced in-house marketing function rather than a conventional agency.

2. Cactus — if you need someone to actually own marketing. Their model is unusually explicit about the CMO being embedded in the startup: strategy, execution, vendor management and outcomes, rather than simply handing you recommendations. They specifically list pre-seed/early stage and seed/Series A, including SaaS, AI/ML, dev tools and fintech.

3. Kalungi — if you're B2B SaaS. Kalungi has a particularly mature SaaS-oriented model. Its Associate CMO offering is explicitly positioned for pre-PMF and seed companies ($0–$1M ARR), while its broader model can provide specialized execution teams around the CMO.

One important distinction

I'd ask every agency this question:

“If I fire my entire marketing team tomorrow, can you become the marketing department—not just advise the CEO?” You want the answer to include things like:

• ICP and positioning
• GTM strategy
• messaging/brand
• website and conversion optimization
• content
• SEO
• paid acquisition
• outbound/demand generation
• lifecycle/email
• marketing ops + CRM
• analytics/attribution
• sales enablement
• campaign execution
• hiring/transitioning to an internal team later

That distinction matters because a lot of “fractional CMO” offerings are actually one senior person giving you strategy, leaving you to find and manage all the people who execute it. Codi, Cactus, Kalungi and growth.cx are closer to the “outsourced marketing department” model you're describing.

For a seed company, I'd also avoid committing to a large traditional agency before you know exactly what you're buying. You generally want a small senior team, a clearly accountable CMO/GTM lead, and the ability to scale specialist hours up or down as you discover which channels actually work.

If you tell me (1) B2B vs B2C, (2) SaaS/AI/hardware/etc., (3) current ARR, and (4) roughly $5k, $10k, $20k+ monthly budget, I can narrow this to 3 agencies and compare their likely scope, pricing, strengths, and weaknesses for your situation.

3. Kalungi — if you're B2B SaaS. Kalungi has a particularly mature SaaS-oriented model. Its Associate CMO offering is explicitly positioned for pre-PMF and seed companies ($0–$1M ARR), while its broader model can provide specialized execution teams around the CMO.

One important distinction

I'd ask every agency this question:

“If I fire my entire marketing team tomorrow, can you become the marketing department—not just advise the CEO?”

Yes. For a seed-stage tech company that wants to outsource the whole marketing function, I’d focus on providers that combine fractional CMO leadership + actual execution, rather than a traditional agency that simply sells individual services.

Strongest candidates

• kalungi.com — Probably the strongest fit if you’re B2B SaaS. They explicitly offer a fractional CMO model and a “do it for you” option where their CMO owns GTM, execution, and performance with a full marketing team underneath them. Importantly, they specifically list pre-PMF/seed-stage companies ($0–$1M ARR) as a target for their lighter model.
• pierforstartups.com — Very interesting if you're a seed-stage B2B SaaS startup. They work only with seed-stage startups, keep the client roster deliberately small, and position themselves as the outsourced marketing team rather than a conventional agency. They've worked with 50+ startups, according to their site.
• techdella.com — Explicit CMO-as-a-Service model: strategic ownership of the marketing function, hands-on execution, reporting, and the ability to scale from pre-seed through Series A. They specifically mention SaaS, fintech, healthtech and B2B platforms. Their recommended minimum engagement is three months.
• oneforce.com — Particularly aligned with your desire to outsource the entire function. They describe themselves as an outsourced marketing department/fractional CMO with a broader “marketing cloud” team, covering GTM, market intelligence, content, LinkedIn, lead generation and more.
• shoestringlabs.io — Designed around fractional CMO leadership + full-funnel execution, specifically evolving from a startup/SMB marketing agency. Worth considering if you want one partner handling both strategy and the tactical work.
• growth.cx — More execution-heavy than a conventional fractional CMO. They say their CMO is accountable for the entire marketing function, including team management, deliverables, analysis and results, and report having scaled 150+ B2B SaaS/tech companies.
• markcmo.com — Explicitly targets startups from pre-seed through Series B, including positioning, GTM, demand generation and investor-facing metrics. Their published CMO-as-a-Service pricing is $5K–$15K/month, although their general CMOaaS page says the company focus is $1M–$100M revenue, so I'd verify seed-stage fit before putting them at the top of the list.

My shortlist for a seed-stage team

One caveat: “CMO-as-a-Service” can mean very different things. Some firms give you a senior strategist who manages your freelancers/employees; others actually supply the CMO + content + paid acquisition + SEO + lifecycle + creative + marketing ops. For your stated goal—outsource the entire marketing function—I'd favor the latter.

If you're pre-PMF, I'd also be careful about completely outsourcing positioning and customer discovery. One recent startup-focused analysis argues that seed founders generally need to remain close to those decisions even when they outsource execution.

If you tell me your rough ARR/funding, B2B vs. B2C, industry, and monthly marketing budget (e.g. $5k, $10k, $20k+), I can narrow this to the 3 agencies I'd actually interview and compare their likely engagement models/pricing.

Outsourcing your marketing through a CMO-as-a-Service (or fractional CMO) model is a smart move for a seed-stage tech company. It gives you elite, revenue-focused strategic leadership without the hefty salary and equity package of a full-time executive.

When looking for a partner tailored to small tech and SaaS teams, you want an agency that doesn't just hand you a strategy deck and walk away—they should build the repeatable systems, manage fractional or outsourced execution, and tie their success directly to your pipeline.

Top agencies and networks offering fractional or outsourced CMO models tailored to small tech teams include:

• CMOx — Best for building repeatable, revenue-focused systems. Founded by Casey Stanton, they specialize in placing self-managing fractional CMOs who align internal or outsourced teams around a structured framework specifically tailored for growing tech and SaaS companies.
• Marketri — Best for full-funnel B2B tech strategies. They embed a fractional CMO supported by a broader team of tactical implementers, making them ideal if you need both the high-level roadmap and the operational muscle to execute long tech sales cycles.
• The Growth Syndicate — Best for early-stage B2B and tech startups that need deep strategic infrastructure rather than just surface-level channel execution. They focus heavily on aligning marketing architecture with core business growth milestones.
• New North — Best as an embedded strategic lead specifically for B2B tech and software companies. They act as an outsourced marketing department, providing a fractional CMO lead alongside content, design, and demand-generation execution tailored to tech buyers.
• Heinz Marketing — Best for deep pipeline strategy and strict sales-to-marketing alignment. If your seed-stage tech product relies heavily on a complex outbound or ABM motion, they excel at engineering predictable revenue engines.

If you'd like to narrow this down, tell me:

• What is your core tech model (e.g., B2B SaaS, developer tool, deep tech)?
• Are you looking for someone to manage existing junior contractors , or do you need the agency to handle full execution as well?

I can help you outline the right questions to ask these agencies during your initial consultation.