B2B Growth Agency Assessment Suite

The B2B Growth Agency Assessment Suite by The Starr Conspiracy gives senior B2B marketing leaders under board-level pipeline pressure four scored, methodology-exposed tools to de-risk agency selection across SEO, PPC, content, email, and LinkedIn. Most teams that complete all four assessments cut their evaluation cycle from 90 days to under 30, based on our internal client onboarding data from 2023 and 2024.

Here is what each tool does, how it scores, and what the output tells you.

The Four Tools In This Suite

1. B2B Agency Readiness Assessment. Scores your internal stack, data hygiene, and team capacity on a 0 to 100 maturity scale across three dimensions. Tells you whether you are ready to hire an agency or whether you need to fix foundational issues first.

2. Agency Engagement ROI Calculator. Takes your current pipeline, deal size, win rate, and proposed agency fee, and returns expected pipeline lift, payback period in months, and 24-month net ROI. Built on Sirius Decisions demand waterfall logic and our own client outcome data.

3. B2B Agency Spend Benchmark Comparator. Compares your monthly retainer, channel mix, and cost-per-MQL against peer medians segmented by ARR band and category. Sources include Gartner B2B marketing spend benchmarks (2024) and LinkedIn B2B Institute research.

4. B2B Agency Fit Diagnostic. A short scored diagnostic that maps your situation to one of five engagement archetypes: full-funnel partner, channel specialist, fractional team, project sprint, or in-house build. Tells you the model that matches your stage, not the one an agency wants to sell you.

Methodology And Why You Should Trust The Scoring

Every tool in this suite exposes its scoring logic in plain text on its companion page. No black-box outputs.

The Readiness Assessment weights its three dimensions (Strategy and Vision at 30%, Data and Infrastructure at 40%, Talent and Organization at 30%) based on which factors most correlate with successful agency partnerships in our 25 years of B2B tech client work. The ROI Calculator uses an explicit formula: projected pipeline equals (current MQL volume times agency-driven lift percentage) times (average deal size times win rate), minus annualized agency fee. We publish the lift assumptions and let you override them.

The Benchmark Comparator pulls from three sources: Gartner's 2024 CMO Spend Survey, LinkedIn B2B Institute's category benchmark reports, and our own anonymized client retainer data across 40-plus active B2B tech accounts. Sample size and collection window are listed on the tool page.

The Fit Diagnostic maps responses to five named outcome categories using a scoring rubric we developed across hundreds of agency evaluations. Each outcome category has a specific recommendation, not a generic "talk to sales" output.

How To Use The Suite In Order

Start with the Readiness Assessment. If you score under 60, hiring an agency will not fix your problem. Fix the foundation first. We will tell you exactly which dimension is dragging your score.

If you score above 60, move to the Fit Diagnostic. It tells you the engagement model that matches your situation. Then run the ROI Calculator to build the business case your CFO will actually accept. Finish with the Benchmark Comparator to validate that the spend range you are considering is defensible against peer data.

This sequence turns a fuzzy procurement exercise into a four-step decision with documented inputs at every stage. That is the document you bring to the board.

Who This Suite Is Built For

VPs of Marketing, CMOs, and Heads of Demand Gen at B2B tech companies between $10M and $250M ARR who are evaluating an agency partnership and need defensible scoring to support the recommendation. If your board has asked "why this agency, why this spend, why now," these tools answer all three.

We built this suite because the existing options in the market are static agency lists, editorial rankings, and lead-capture forms disguised as assessments. None of them score your situation. None of them tell you the math. None of them are honest about when the answer is "do not hire an agency yet."

Ours do all three.

Related Resources

Deepen the methodology with our demand generation framework and the Ten Demand States glossary entry that grounds our buyer journey model. For the underlying spend data context, see our B2B marketing benchmarks hub. If you want a guided walkthrough of all four tools, our agency selection guide connects the scoring outputs to a procurement-ready decision document.

The Bottom Line

Agency selection is a high-stakes decision that most B2B marketing leaders make with vibes and references. The Starr Conspiracy's Assessment Suite replaces vibes with scored inputs, exposed formulas, and peer-benchmarked outputs. Run all four tools before you sign anything. If we are the right fit, the math will say so. If we are not, the math will say that too, and you will have saved yourself a 12-month mistake.

Related Questions

How do I assess my agency readiness before hiring?

Score your team across three dimensions: strategic clarity (do you know your ICP, positioning, and demand states), data and infrastructure (is your CRM clean, is attribution working, are systems integrated), and talent capacity (do you have the internal owner who can manage an agency partnership). A score below 60 on a 100-point scale means foundational work comes first. Our Readiness Assessment runs this scoring in eight minutes.

What is the ROI of hiring a B2B agency?

ROI depends on four inputs: current pipeline volume, average deal size, win rate, and the lift percentage you can credibly attribute to agency-driven programs. The formula is (incremental pipeline times win rate times deal size) minus agency fees, divided by agency fees. Typical B2B tech partnerships in the $15K to $50K monthly range show 24-month net ROI between 3x and 8x when readiness scores are above 70. Below that readiness threshold, ROI is unpredictable.

How much should a B2B company spend on a marketing agency?

Peer median retainers for B2B tech companies between $10M and $100M ARR range from $15K to $45K monthly for full-funnel partnerships, per Gartner 2024 CMO Spend Survey data and our internal client benchmarks. Channel-specialist engagements (SEO-only, PPC-only) typically run $8K to $20K monthly. The right number for your company depends on pipeline gap, target growth rate, and internal team capacity. Run the Benchmark Comparator to see your specific peer position.