Six SaaS Marketing Agencies for Six Different Growth Jobs

A SaaS marketing agency can supply strategy, specialist execution, or an entire outsourced team, but those are different purchases. For a US B2B SaaS company, start with the growth problem your own data can support: unclear positioning, weak qualified pipeline, search demand you are not capturing, or content buyers do not trust. Then shortlist agencies whose published work matches that job and ask them to show how they would diagnose it for the way your customers buy. A “top agencies” rank cannot make that decision for you.

In short: These are examples of different scopes for B2B SaaS, not a best-to-worst ranking:

• Kalungi: when you need an accountable fractional marketing leader and execution team.
• Directive: when an existing acquisition program needs spend-to-pipeline scrutiny.
• Grow & Convert: for conversion-focused organic search.
• Campfire Labs: for original research.
• Tiller: for positioning.
• Refine Labs: for coordinating brand, demand and paid-media campaigns to existing accounts, not customer-success or lifecycle-email execution.

Verify the current team, work samples, costs, contract and measurement plan before choosing any of them.

Define the job before you read the agency list

An agency search often begins with a symptom: “We need more leads.” That statement is too broad for a useful proposal. The bottleneck might be too few relevant buyers seeing the offer, too many unqualified demo requests, a sales team rejecting the leads, a website that does not explain the product, or customers who do not reach value after buying. Each calls for different work and a different measure of progress.

Write a brief in four lines before contacting agencies:

1. Buyer and motion: Which US buyer, company type, deal size and sales route are in scope? State whether sales is self-serve, product-led, sales-led or a mix.
2. Observed constraint: Give the baseline and its denominator, period and source. For example, “Of 120 demo requests attributed to paid campaigns last month, 12 became sales-accepted opportunities under our written definition.” That is a fictional illustration, not an industry conversion rate.
3. Decision to improve: Say what you need to learn or change. In the example, first determine whether the issue is campaign targeting, form criteria, landing-page expectation, sales acceptance rules or attribution—not simply whether the team can buy more traffic.
4. Working boundary: Name the budget range you can approve, who owns CRM and ad accounts, internal subject experts, required approvals, reporting access and the date by which you need a defensible decision.

The 120-to-12 example does not prove a bad campaign. A definition change, one unusually broad event, or sales follow-up delay could explain part of it. Ask for the underlying records before making an agency's promised lead increase the goal.

Check whether you are ready to hire an agency. Name the person inside your company who can provide product and customer evidence, agree with sales on what counts as a useful opportunity, approve work and retain access to accounts and data. If no one can own those decisions, appoint or hire an internal leader, or explicitly scope a fractional leadership mandate, before buying channel execution. If an owner exists and the job can be bounded, specialist proposals can be compared fairly.

Six agencies to shortlist by the work you need done

The inclusion rule is a publicly described B2B SaaS or B2B technology service relevant to this buyer and a distinct primary decision the firm could help make. The six-job mapping is our editorial guide to that decision, not an independently tested measure of agency performance or an exhaustive directory. Agency sites show what firms say they offer; case-study outcomes remain claims to examine. Scopes overlap, so more than one firm may fit your brief.

1. Kalungi — build or replace marketing leadership and execution

Shortlist when: You need a senior marketing owner and a team to coordinate positioning, campaigns, content and operations, and hiring those roles separately would leave the work fragmented. Kalungi describes fractional go-to-market leadership backed by execution across account-based marketing, SEO/content, automation and RevOps, web and paid media.

Verify in discovery: Who will be the named strategic lead? Which specialists are assigned versus shared? What decisions will your internal team retain? Ask for a 90-day responsibility map and a recent example of how it connected marketing work to qualified opportunities. A single channel task, such as fixing one paid-search account, may not justify a broad outsourced department.

First bounded output to request: a responsibility map naming the internal and agency decision owners, the first two workstreams and the baseline each will use. That reveals whether the proposed outsourced team will actually close your leadership gap.

2. Directive — run a B2B performance program against pipeline

Shortlist when: Your offer and target buyer are reasonably defined, you already have or plan to fund search/social acquisition, and you need a specialist to connect channel work to qualified pipeline. Directive's site positions the firm around B2B marketing and qualified pipeline, with paid media, SEO and content services.

Verify in discovery: Ask the team to trace one campaign from spend to accepted opportunity and eventual revenue in your CRM, including the lag and missing attribution. Which conversion is optimized in the ad platform, and which one is used to judge the engagement? Require a named channel lead, a test plan and a reporting example using your stage definitions. More form fills alone would not solve the fictional 120-to-12 problem.

3. Grow & Convert — turn high-intent search into qualified conversations

Shortlist when: Buyers search for the problems and products you sell, but your existing content attracts readers who do not become relevant sales conversations. Grow & Convert lists conversion-focused organic growth, content and SEO for Google and AI search, alongside other services such as paid search.

Verify in discovery: Give the team one real product use case and ask how it would choose a search topic, interview a subject expert, explain product fit accurately, and measure a qualified conversion. Review an actual brief and published article, not a promised traffic curve. Define who can approve technical and product claims. If buyers do not use search to research this category, the proposed content program needs a stronger demand hypothesis before you commit.

4. Campfire Labs — produce research buyers can trust

Shortlist when: Your category has many interchangeable blog posts, but your buyers need original data, expert analysis or a credible point of view to make a decision. Campfire Labs describes original research, data journalism, earned coverage and content built for buyer credibility.

Verify in discovery: Ask for a research plan with sample frame, data source, interview approach, fact-checking, quotation permissions and what happens if the findings do not support the proposed story. Clarify who owns the dataset and reusable graphics. An attractive report with weak methodology can hurt trust; a credible project should make the evidence and its limits visible to the reader.

5. Tiller — reposition for a new buyer or clearer product story

Shortlist when: You are entering a new segment, moving upmarket, integrating an acquisition, or finding that prospects misunderstand the product before they reach a demo. Tiller's B2B SaaS site explicitly names new-market positioning, product messaging, brand alignment and buyer experience among the problems it works on.

Verify in discovery: Ask what customer, lost-deal and sales-call evidence will shape the message. Request the first tangible outputs—such as a buyer-language map, positioning options, page narrative or message test—and decide how sales and product leaders will approve them. A rebrand alone will not fix a weak offer or a sales handoff unless those issues are diagnosed in the brief.

6. Refine Labs — connect brand, demand and expansion

Shortlist when: You already fund paid media and have an internal marketing owner, but your brand, acquisition and paid campaigns to existing or stalled accounts lack a coordinated plan and measurement. Refine Labs describes brand, demand and paid-media-supported expansion for B2B technology companies; its homepage emphasizes Series B and later, which is a positioning signal to check rather than an absolute eligibility rule. Its Expand service does not run customer-success programs or lifecycle email.

Verify in discovery: Ask for the baseline it would use across the three motions, what can be measured directly, and which effects will remain uncertain. Who owns paid campaign execution and reporting? Who on your team owns customer success and lifecycle email? A cross-functional engagement is hard to evaluate if each function keeps its own success definition and no one reconciles them.

First bounded output to request: a map of the three motions, their owners, campaign and CRM evidence, and the first measurement decision. It should say which expansion work remains with your team.

Use the job distinction to choose the first calls

The six profiles are different starting hypotheses. A firm may offer several of these services, and its current team can matter more than the label on its website. Use this quick route to narrow the first calls:

• Leadership and operating capacity are missing: ask Kalungi how it would own decisions, staff the work and deliver it. If you already have that owner, a broad outsourced team may duplicate the role.
• A defined paid acquisition program lacks a credible spend-to-opportunity view: ask Directive to trace that path before changing spend.
• High-intent search content may or may not produce qualified conversations: ask Grow & Convert for a buyer-intent and conversion brief, including product-fit checks.
• The editorial problem is a lack of original evidence: ask Campfire Labs for a research question and method; if the underlying issue is message clarity, diagnose that first.
• Buyers misunderstand the product or the target segment changed: ask Tiller for customer evidence, positioning options and a message test before scaling campaigns.
• Leadership exists but brand, acquisition and paid expansion campaigns lack coordinated measurement: ask Refine Labs for the plan and the boundary with your internal customer-success and lifecycle teams.

These are prompts for discovery, not exclusive capabilities. A problem can straddle jobs: clarify positioning before increasing paid spend if the page attracts the wrong buyer, then keep one internal owner accountable for both workstreams. If you cannot state your buyer, the decision you need to improve, and what data you can share, complete that internal work first. An agency can investigate ambiguity, but it cannot validate an undefined success measure after the contract is signed.

Run a selection process that exposes the working team

Send the same four-line brief to two or three plausible firms. Ask each for a diagnostic response before a full proposal: the assumption it would test first, the records it needs, the likely first deliverable, the people who will produce it and the decision that deliverable enables. Compare the answers on fit and evidence, not presentation polish or an unverified promise.

Record five fields side by side for every finalist:

• Diagnosis and evidence: What does the agency think needs checking first, and which records would distinguish the explanations?
• Relevant work sample and limits: Ask for a comparable, preferably redacted sample or reference. Note what it does and does not prove about your case.
• Working team and access: Name the delivery people, your internal owner and the access or time each side must supply.
• First output and acceptance: State what you will receive, how you will judge it and the decision it enables.
• Full cost, term and ownership: Include the fee, media and other costs, contract length, exit rights, and ownership of accounts and reusable work.

A proposal that promises pipeline before inspecting the baseline, will not identify the delivery team, or requires account or data control you cannot accept should not advance unchanged.

For the fictional 120-demo/12-accepted-opportunity case, a useful first deliverable might be a campaign-to-CRM audit by segment. It would reconcile which requests became accepted opportunities, which were rejected and why, and whether follow-up or tracking gaps changed the picture. A paid-media specialist might then test targeting or landing-page expectations. A positioning team might test whether the page attracts the wrong buyer. The first deliverable should distinguish those explanations before buying more traffic. For a broader look at using sales data and metrics to guide action, see data-driven sales.

In the full proposal, check scope, review cycles and fee basis alongside media, software, research and setup costs. Check the minimum term, renewal, pause and exit terms; ad-account and CRM access; ownership of source files, data and content; and reporting against agreed stage definitions. Record the leading indicator, later business outcome and effects neither side can attribute precisely. No published “average agency price” can replace your actual terms.

For a bounded job, ask whether the agency offers paid discovery or a pilot before a larger commitment. Agree before paying on:

• Question and records: the diagnostic question and records needed to answer it.
• Access and internal time: the account access, subject experts and decisions your team must provide.
• Output and decision: the deliverable format, acceptance criteria and decision date.
• Cost and handoff: the fee cap and what data, files and notes you receive at exit.

If records are missing, make the first paid output a data-quality finding and an explicit go/no-go choice, not a vague promise to “start optimizing.” An illustrative first 90 days can work like this, adjusted to the job and the agency's actual scope:

1. Weeks 0–2 — agree on the starting point. Your internal owner grants the minimum necessary access, aligns CRM stage definitions with sales, and signs off on the baseline and assumptions. In the fictional case, reconcile the same 120 paid-attributed demo requests and 12 sales-accepted opportunities by segment and rejection reason.
2. Weeks 3–6 — inspect and choose a test. The agency delivers a campaign-to-CRM diagnostic, a positioning hypothesis, a research plan or a search-intent map as appropriate. Your owner accepts the artifact only if it shows its evidence, gaps, responsible team and proposed next decision. For the demo case, compare an acquisition proposal that tests targeting with a positioning proposal that tests the landing-page promise; choose the better-supported test first, then reassess rather than funding both by default.
3. Weeks 7–12 — run or prepare bounded work and decide. Review an agreed leading signal—such as fewer wrong-fit requests under the same definition, validated buyer language, a defensible research method or approved expert-backed briefs—alongside costs and unresolved attribution. Decide to expand, change scope or stop. At exit, obtain the agreed editable files, source data, account access, stage definitions and handoff notes so your team can continue.

A content or SEO program may produce a validated topic map, expert-backed drafts and tracking before attributable revenue. A research or positioning project can be judged against evidence and approved outputs before a sales cycle closes. Do not turn “90 days” into a guaranteed revenue deadline.

When an in-house hire is the better first move

Ongoing decisions about your buyers, offer, sales definitions and program priorities need a company owner. If that role is not staffed, an accountable internal marketing leader may be the first hire; a narrow agency can then supply skills that leader cannot reasonably build quickly. When the strategy is clear but a research project, paid-channel audit or website repositioning is time-bound, an agency can supply that capability.

The decision is not “agency or in-house forever.” It is which work needs ongoing ownership and which work can be scoped, tested and handed over. Keep customer knowledge, account access and success definitions inside your company even when an agency executes the campaign.

A short brief you can send this week

“We sell [product] to [buyer and company type] in the US through [how customers buy]. Our current constraint is [observed metric with period and denominator]. We need to decide [specific choice], and can share [CRM, campaign, customer or interview evidence]. Please tell us what you would test first, who would do the work, the first deliverable we could review, how you would measure it, an initial fee range and diagnostic scope, and what remains ours if we stop. We will ask finalists for full costs and terms in the proposal.”

If the reply does not identify a testable first decision or a named delivery team, ask again before adding that firm to the final shortlist. The right agency is the one whose proposed work fits the evidence and the decision you need to make—not the one with the longest service list.