7 Flat-Fee Digital Marketing Agencies With No % of Ad Spend

Written by: Aaron Rovner, Founder, Saas Hero | Last updated: September 3, 2026

Key Takeaways for B2B Marketers

• Percentage-of-spend pricing creates a structural conflict of interest because agencies earn more when clients spend more, regardless of performance outcomes.
• Flat-fee models (retainer, project, or performance-based) remove this conflict by separating agency revenue from ad spend volume.
• SaaSHero stands out for B2B SaaS companies, with a flat retainer starting at $4,000/month and full-service support across paid media, creative, landing pages, and CRM-connected attribution.
• Key evaluation criteria include confirming scope inclusions, clarifying how fees change with spend adjustments, and ensuring optimization targets CRM outcomes rather than form fills.
• B2B SaaS companies that want a flat-fee growth team to own the entire paid acquisition engine can schedule a discovery call with SaaSHero.

The Problem: 3 Reasons Percentage-of-Spend Pricing Fails B2B Marketers

Reason 1: The Inherent Conflict of Interest

When an agency calculates its monthly revenue as a percentage of your ad spend, every budget conversation carries an undisclosed interest. A recommendation to scale spend from $20,000 to $40,000 per month increases the agency fee by the same ratio, whether or not the data supports that increase. A recommendation to cut budget or reallocate to a lower-cost channel reduces the agency’s revenue. The pricing structure itself distorts advice, even when everyone involved acts in good faith.

Reason 2: Discourages Efficiency and Innovation

Percentage-of-spend pricing creates what SaaSHero calls budget calcification. Spend stays in channels that no longer perform because the agency has no financial incentive to move it. Testing a new channel that might outperform an existing one becomes a risk the agency absorbs with no corresponding reward. Over time, the account in month eighteen often looks like a lightly edited version of the launch setup, maintained rather than developed while the market moves around it.

Reason 3: Unpredictable Costs and Misaligned Incentives

Your monthly agency fee fluctuates with your advertising activity rather than with the value the agency delivers. A seasonal campaign push, a product launch, or a board-mandated spend increase all raise your agency bill without any change in scope. The agency’s incentive centers on increasing spend volume instead of improving the return on that spend. As the account grows, that misalignment compounds.

A useful analogy is a financial advisor paid a percentage of assets under management who also controls how much you invest. Every recommendation to deploy more capital benefits the advisor directly, and every recommendation to hold cash reduces their income. Percentage-based agency pricing creates the same structural problem.

The Solution: 3 Flat-Fee Pricing Models Explained

Retainer-Based: The Predictable Partner

A retainer model uses a fixed monthly fee for a defined scope of services, regardless of ad spend. This structure is the most common flat-fee approach and fits ongoing paid media management well. Costs stay predictable. The agency’s incentive focuses on delivering results within the agreed scope, not on expanding the budget. The relationship orients around long-term performance instead of monthly spend volume. The main limitation is scope flexibility, because major changes such as adding a new channel or expanding creative output often require renegotiation.

Project-Based: The Defined Deliverable

A project model uses a one-time fee for a specific initiative such as a campaign launch, an account audit, or a landing page build. This structure provides cost certainty for a clearly bounded piece of work and fits needs that are specific and time-limited. It does not fit ongoing management and continuous improvement, where value compounds over months rather than arriving at a single delivery point.

Performance-Based: The Shared-Risk Model

A performance model ties fees to specific outcomes such as leads generated, pipeline created, or revenue closed, usually with a base retainer to protect account health. This structure directly aligns agency compensation with client results, but it introduces complexity. Outcome definitions must be agreed in advance, attribution must be airtight, and the structure can incentivize optimizing toward whatever is easiest to measure rather than what matters most to the business.

The List: 7 Flat-Fee Digital Marketing Agencies for B2B Companies

The agencies below use flat-fee or non-percentage pricing structures and serve B2B clients. Pricing details appear where they are publicly available. Where pricing is not published, the model is described based on each agency’s stated positioning.

1. SaaSHero (Best for B2B SaaS)

SaaSHero serves as an outsourced inbound growth team for B2B SaaS companies and operates on a flat-retainer model. The firm charges based on total monthly ad spend under management, not on the number of channels managed. That distinction matters because the fee does not change when a channel is added, consolidated, or shut down. Every channel-mix recommendation can be made on evidence alone, without any invoice consequence attached to it.

The firm covers five capability areas as one team. Paid media spans Google Ads, Microsoft Ads, LinkedIn, Meta, Reddit, and TikTok. Creative runs end-to-end from concept through copy and design. Landing page work includes design, build, hosting, and A/B testing. Attribution and reporting connect directly to the client’s CRM. Strategy includes proactive identification of what to test and where to invest. All work stays in-house, with about 20 full-time specialists, including designers and copywriters.

CRM-level optimization defines the technical edge. SaaSHero separates primary from secondary conversions and uses only primary conversions for account-wide bidding. Lifecycle-stage events flow back into the ad platforms so algorithms learn from qualified opportunities instead of raw form fills. Reporting runs in Looker Studio and HubSpot dashboards connected to the client’s CRM, with visibility into pipeline, CAC, and payback period rather than impressions and cost per click.

SaaSHero is a Google Premier Partner, a designation held by the top 3% of Google Partners, and has been a G2 High Performer in the digital marketing category for over two years. It currently ranks #20 out of approximately 6,000 agencies. The Growth Team retainer starts at $4,000 per month and scales with total monthly ad spend. The firm typically works with companies that have at least $15,000 in existing monthly ad spend and $10M or more in annual revenue.

Published results include $504,758 in net new ARR added for TripMaster over one year. TestGorilla achieved an 80-day payback period on paid acquisition. Playvox saw a 10x reduction in cost per lead alongside a 163% increase in lead volume. Shop Boss recorded a 305% increase in conversion rate.

2. DPOM

DPOM is a digital marketing agency that uses a flat monthly retainer model and positions itself as a transparent alternative to percentage-of-spend pricing. The agency offers paid search and paid social management for B2B and e-commerce clients. Specific pricing is not publicly listed, and prospective clients request a custom quote based on scope.

3. Dmoons

Dmoons is a performance marketing agency that offers flat-fee retainer engagements covering paid search, paid social, and SEO. The agency serves small to mid-market businesses and presents its pricing as a fixed monthly investment rather than a spend-linked fee. Pricing is available on request.

4. NAK Digitech

NAK Digitech provides digital marketing services on a project and retainer basis, with pricing structured around deliverables instead of ad spend volume. Services include paid media management, SEO, and content marketing. The agency serves B2B and B2C clients across multiple verticals. Pricing is available on request.

5. Vertical Teams

Vertical Teams offers outsourced marketing team services on a flat monthly retainer. The scope covers paid media, content, and demand generation for B2B technology companies. The model functions as a fractional marketing team, with pricing based on scope of services rather than ad spend. Specific rates are available on request.

6. BeFoundly

BeFoundly is a digital marketing agency that offers flat-fee monthly retainers with transparent pricing tiers published on its website. This structure makes it a straightforward option for companies that want cost certainty without a percentage-of-spend arrangement. The agency focuses on digital marketing services for small and mid-market businesses.

7. Wizard of Ads

Wizard of Ads is a brand and advertising consultancy that works on a flat monthly retainer instead of a media commission or percentage-of-spend model. The firm focuses on brand strategy, messaging, and broadcast and digital advertising for small to mid-market businesses. It fits companies that prioritize brand-building over direct-response paid media optimization.

The table below summarizes each agency’s pricing model, primary services, and best fit so you can compare options side by side.

B2B SaaS teams that want a flat-fee agency to own the entire paid acquisition engine can talk with SaaSHero’s growth team about fit.

The Framework: How to Evaluate a Flat-Fee Agency (5 Questions to Ask)

Many agencies use flat-fee language without removing the underlying conflicts. The five questions below help you separate genuine alignment from rebranded percentage pricing.

1. What exactly is included in the flat fee? Confirm whether creative production, landing page design and testing, conversion tracking configuration, and reporting are included or billed separately. An agency that charges a flat retainer for ad management but invoices separately for every creative asset or landing page has not simplified your cost structure. It has obscured it.
2. How do you handle changes in ad spend, and does the fee change? A retainer indexed to total ad spend can still be transparent and predictable when the rules are clear. A retainer that rises every time you add a channel or increase a budget recreates the same incentive problem as percentage pricing in a different form.
3. Who will be working on my account day-to-day? Ask for names and titles, not org charts. Confirm whether account team members are full-time employees or contractors. Clarify whether the senior people named in the pitch will still be in the account in month seven.
4. How do you report on performance, and do you optimize against CRM data or just form fills? An agency should explain how it separates primary from secondary conversions and how it connects ad platform data to CRM outcomes. Without that clarity, the team is likely optimizing toward the wrong signal. For B2B SaaS with multi-month sales cycles, form-fill optimization consistently finds the wrong audience.
5. What is your process for testing new channels or reallocating budget? A flat-fee agency with no financial stake in the channel mix should recommend reallocation freely. If the answer involves a contract amendment or a fee increase every time the mix changes, the pricing model is still shaping the recommendation.

Red flags to avoid include agencies that:

• Stay vague about what is and is not in scope
• Cannot produce case studies from companies with similar revenue and spend profiles
• Report exclusively on platform metrics instead of pipeline outcomes
• Struggle to explain how they would handle a recommendation to reduce your ad spend

The Cost: Average Fees for Flat-Fee Digital Marketing Agencies

Once you know how to evaluate agencies, the next step is understanding typical price ranges. Entry-level flat-fee digital marketing retainers usually range from $1,500 to $3,000 per month, according to 2026 agency pricing guides. For pre-seed and seed SaaS companies, full-service B2B growth teams that cover paid media, landing pages, and reporting often start between $3,000 and $8,000 per month, with higher costs for later-stage companies and broader scopes. For engagements with $15,000 to $50,000 in monthly ad spend, agency retainers commonly range from about $3,000 to $7,500 per month, according to COREPPC’s 2026 pricing guide.

The average fee for a digital marketing agency varies significantly by scope. A single-channel paid search management retainer sits at the lower end of the range. A full-service engagement that covers paid search, paid social, creative production, landing page testing, and CRM-connected reporting sits at the higher end. For B2B SaaS companies, the relevant comparison is total cost of ownership rather than the monthly retainer in isolation. A flat-fee retainer that includes creative and landing pages replaces several separate contractor relationships, and the absence of a percentage markup on a $30,000 monthly ad budget creates a meaningful cost difference over a twelve-month engagement.

For a deeper breakdown of how transparent pricing structures compare across B2B SaaS growth engagements, see the guide to transparent pricing for B2B SaaS digital marketing growth.

The Switch: How to Transition From a Percentage-Based to a Flat-Fee Agency

Most agency transitions fail because the handover is rushed, the data is incomplete, and the new team inherits a broken measurement architecture. A phased approach reduces that risk and gives the new agency a clean foundation.

1. Audit your current agency contract and performance. Review termination clauses, notice periods, and data ownership provisions before you start any transition. Confirm that you own your ad accounts, conversion tracking configurations, landing page files, and creative assets, not the agency. Pull ninety days of performance data from the ad platforms and your CRM and reconcile them. The gap between platform-reported conversions and CRM-recorded qualified leads provides an early diagnostic of how well the current engagement is working.
2. Prepare your accounts and data for a smooth handover. Ensure admin access to all ad accounts, Google Tag Manager, GA4, and your CRM sits under your own email domain rather than the agency’s. Document the current campaign structure, conversion actions, and audience definitions so the incoming team can audit instead of guess. A reputable outgoing agency will cooperate with this process. An agency that resists signals a data-hostage situation that you should resolve before signing anything new.
3. Set clear goals and KPIs for the new engagement. Define success in the terms your board uses, such as pipeline created, cost per sales-qualified lead, and CAC payback period, instead of platform metrics. Share your CRM lifecycle stage definitions and your sales team’s lead acceptance criteria with the incoming agency before the engagement starts. The new team’s first optimization decisions will follow the targets you set.
4. Validate before expanding. Start the new engagement on your primary channel, establish clean measurement, and confirm that the structure and messaging thesis are working before you add channels or increase spend. A phased approach gives you a defensible data point at the ninety-day mark and reduces the risk of committing a full budget to an unvalidated setup.

For a broader look at how to evaluate lead generation agencies that operate without a percentage-of-spend model, see the companion piece on lead generation agencies with no percentage spend.

Frequently Asked Questions

What does “no percentage” mean in digital marketing?

A digital marketing agency with no percentage charges a flat fee, typically a monthly retainer or a project-based fee, instead of calculating its compensation as a percentage of your advertising budget. In practice, the agency’s revenue does not rise when your ad spend rises, which removes the financial incentive to recommend larger budgets for reasons unrelated to performance. For B2B companies managing five-figure monthly ad budgets, the cost difference between a flat retainer and a 10–15% percentage-of-spend arrangement can be substantial over a twelve-month engagement.

How do flat-fee agencies make money?

Flat-fee agencies earn revenue through fixed monthly retainers or project fees agreed in advance, regardless of how much their clients spend on advertising. This model requires the agency to be efficient with its own labor because it cannot offset underperformance by earning more on a larger budget. That structure aligns agency incentives with the client’s interest in getting the most from a defined spend level. Agencies that use this model typically price their retainers based on scope of services, channel complexity, and the volume of ad spend under management, rather than as a direct percentage of that spend.

Are flat-fee agencies more expensive than percentage-based ones?

Flat-fee agencies are not automatically more expensive, and for B2B companies with meaningful ad budgets, they are often less expensive in total. A percentage-of-spend agency charging 12% on a $30,000 monthly budget bills $3,600 per month for management, regardless of what that management produces. A flat-fee agency covering the same channels at a fixed $5,000 retainer costs more in absolute terms but carries no financial incentive to inflate the budget, and the retainer does not automatically rise if the budget increases. The more relevant comparison is total cost of ownership. A flat-fee retainer that includes creative production and landing page testing replaces several separate contractor relationships that a percentage-of-spend agency often leaves to the client to manage and fund separately.

How do I know if a digital marketing agency is legitimate?

Verifiable third-party credentials provide a reliable signal. As noted earlier, SaaSHero holds Google Premier Partner status, a designation reserved for a small percentage of partners that meet performance, spend, and certification thresholds. G2 rankings rely on verified user reviews and frequent updates, which makes them harder to manufacture than testimonials on an agency’s own website. Beyond credentials, ask for case studies from companies with a similar revenue profile and ad spend level. Request references and call them with specific questions about reporting quality and proactivity. Ask the agency to walk through exactly who will be in your account day-to-day and whether those people are employees or contractors. A legitimate agency will answer these questions directly and without hesitation.

Can I switch agencies mid-contract?

You can switch agencies mid-contract, but the process requires careful attention to your current agreement’s termination provisions. Most agency contracts include a notice period, which can range from a week to as long as 90 days, and some include early termination fees. Before you initiate a transition, confirm that you own all ad accounts, creative assets, landing page files, conversion tracking configurations, and reporting dashboards. A reputable agency will make the handover process straightforward and will not use account access or data as leverage. If your current agency cannot confirm that you own these assets outright, resolving that question becomes the first step before any transition begins.

Conclusion

Percentage-of-ad-spend pricing creates a structural conflict that goodwill cannot fully resolve. The agency earns more when you spend more, so every budget recommendation carries an embedded interest. Flat-fee models, whether retainer-based, project-based, or performance-based, remove that conflict and support channel-mix decisions grounded in evidence.

For B2B SaaS companies with established paid programs and a board focused on pipeline, the evaluation criteria stay clear. You need an agency whose fee does not move when the channel mix changes, whose optimization runs against CRM outcomes rather than form fills, and whose team owns the post-click experience as well as the ad account. SaaSHero is built to those specifications, with a flat retainer indexed to total ad spend, a team that owns strategy through landing pages and reporting, and CRM-level measurement at the center of every optimization decision.

B2B SaaS leaders who want to stop managing their agency and hand off paid acquisition can request a SaaSHero discovery call today.