KlientBoost Reviews: What Clients and Employees Say (2026)

KlientBoost, a PPC and CRO agency in Costa Mesa, California, holds 4.9/5 on Clutch and 4.8/5 on G2, each across 404 reviews, with a separate 4-review Trustpilot profile that skews the picture if read alone.

About KlientBoost

KlientBoost was founded in 2015 by Johnathan Dane and is headquartered in Costa Mesa, California, with an estimated 51-200 employees. The agency positions itself as an “Outcome Marketing Agency” offering PPC, CRO, SEO, landing pages, and email marketing.

KlientBoost Review Overview

• Clutch: 4.9/5 across 404 reviews, with account-team responsiveness the most-repeated praise (verified August 2026).
• G2: 4.8/5 across 404 reviews, with technical conversion-tracking work and Slack responsiveness cited most often (verified August 2026).
• DesignRush: 4.8/5 across 151 reviews, with pipeline results and high-touch account management cited most often (verified August 2026).
• FeaturedCustomers: 114 published references (59 testimonials, 55 case studies), vendor-curated rather than independently moderated, so no rating is reported (verified August 2026).
• Trustpilot: 2.6/5 across 4 reviews, a non-statistical sample where all four submissions are 1-star (verified August 2026).
• Glassdoor: 4.1/5 across 216 ratings, with 79% of reviewers recommending the company and 74% approving of the CEO (verified August 2026).

KlientBoost Client Reviews

Clients on high-volume platforms rate KlientBoost strongly for responsiveness and results, while a small, non-statistical Trustpilot base tells a different story that should not be read as representative.

Clutch: 4.9/5 (404 reviews)

Clutch’s profile has dated reviews running into 2025, including a January 2025 review from Shipley Energy, indicating an actively maintained profile rather than a stale one.

What clients praise:

• Fast, proactive email communication from the account team
• Data-driven testing and optimization approach
• Measurable performance gains, including lower cost-per-acquisition and improved lead quality

Where clients push back:

• Clutch’s own aggregated Review Highlights call for more proactive creative and ad-content suggestions
• A minority of reviews cite contract rigidity or perceived underperformance
• Occasional onboarding-process friction

“Their communication skills are top notch with responding to emails.”

• Social Media & Marketing Coordinator, Shipley Energy (Clutch )

G2: 4.8/5 (404 reviews)

G2’s live profile shows a claimed listing with quotes drawn from its “what do you like best” and “what do you dislike” fields, independently confirming a review count of 404 that happens to match Clutch’s total.

What clients praise:

• Responsiveness on Slack alongside technical depth in conversion-tracking setup
• A broad approach that reviews landing pages and funnels alongside ad targeting
• Flexibility rather than a rigid, one-size-fits-all process

Where clients push back:

• An onboarding pace some reviewers describe as fast, with a request for more lead time on creative requests
• Occasional setup mistakes, such as a misconfigured conversion event or age filter
• A Slack channel that can get busy with multiple concurrent threads

“A few mistakes so far with choosing conversion event or adding age filtering when it would disqualify our ads. But that’s part of the learning process. Sometimes the Slack channel can get a bit busy with multiple threads going at once.”

• G2 reviewer, “What do you dislike about KlientBoost?” field (G2 )

DesignRush: 4.8/5 (151 reviews)

DesignRush’s directly-read profile surfaced positive-quote reviewers describing strong pipeline results and high-touch account management; a separately indexed negative summary describing a strongly critical review could not be corroborated on the live page and is not included here.

What clients praise:

• Pipeline and revenue results, including one client citing near-$1M in pipeline growth
• Thorough onboarding that simplifies the process
• Responsive, high-touch account management

“In the short time we have worked with KB, our digital marketing efforts have produced nearly $1M in pipeline.”

• Max Snitkovsky, MBA, President and Owner, Comfort Keepers (DesignRush )

FeaturedCustomers: 114 references, no rating reported

KlientBoost’s profile publishes 59 testimonials and 55 case studies. The rating FeaturedCustomers displays is an aggregate over its own platform-wide pool of 2,748 reference ratings rather than over those 114 published items, so it is not a KlientBoost score and is not reported here. This content is vendor-curated rather than independently moderated, so no complaint content exists on the platform by design.

What clients praise:

• Improved lead quality
• Long-tenure comparisons, including one CEO citing 14 years of agency experience with none comparing favorably
• Cross-border communication, including handling a language barrier for a Norway-based client

Trustpilot: 2.6/5 (4 reviews)

All four Trustpilot reviews are 1-star, yet the displayed TrustScore reads 2.6 rather than 1.0 because Trustpilot’s score is weighted and time-decayed rather than a plain average of star ratings. With only 4 reviews against Clutch’s and G2’s 404 each, this profile is not a statistically comparable sample and should not be read as the client verdict on KlientBoost.

GoodFirms, UpCity: no profile carried usable review content as of August 2026: GoodFirms’ profile exists but has zero submitted reviews, and UpCity’s profile URL returns a dead 404 page.

Account-team continuity is the complaint that recurs across the highest-volume platforms: G2 reviewers flag onboarding pace and busy Slack threads, while Clutch’s own Review Highlights separately call for more proactive creative suggestions, both pointing to a post-onboarding attentiveness gap.

The two 404-review counts on Clutch and G2 are a genuine coincidence, not a data error: both totals were independently verified on their respective live pages on the same day.

Trustpilot’s 2.6/5 is a small, skewed signal, not a competing client verdict: a 4-review, all-1-star base sits alongside two 404-review profiles rating KlientBoost above 4.8/5, and the gap reflects sample size rather than a reversal of client sentiment.

KlientBoost Employer Reviews

Glassdoor lists KlientBoost at 4.1/5 across 216 reviews, though the profile sat behind a block and was read via search index rather than the live page as of August 2026; Indeed’s claimed profile carries no reviews.

Glassdoor: 4.1/5 (216 ratings)

KlientBoost’s Glassdoor profile covers two offices, with 79% of reviewers recommending the company and 74% approving of CEO Johnathan Dane (verified August 2026).

What employer reviewers praise:

• Collaborative colleagues and a supportive environment
• Compensation and benefits, including health and dental
• Room to grow and learn early in a career

Where employer reviewers push back:

• Processes and organisation not keeping pace with growth, creating shifting priorities
• A consistently full plate, which reviewers tie to agency client load
• Limited senior leadership openings for those seeking advancement

“This was a great place to grow and learn. My coworkers were awesome and the benefits and compensation were great. They do really care about you and try to make it be a healthy place to work.”

• Glassdoor reviewer (Glassdoor )

“As the company has grown, processes and organization have not always kept pace, which can sometimes create inefficiencies or shifting priorities. Employees who prefer highly structured environments may find this challenging.”

• Glassdoor reviewer (Glassdoor )

Indeed’s claimed profile has no submitted reviews as of August 2026, stating “we currently don’t have any reviews for KlientBoost.” No AmbitionBox listing surfaced, and Comparably’s profile could not be confirmed or ruled out due to a site block.

Glassdoor reviewers describe growth outpacing internal process: they report organization and process lagging as headcount and accounts scale, a specific, checkable growing-pains note rather than a broad culture complaint.

This connects plausibly to the client-side post-onboarding gap: G2 and Clutch clients separately describe reduced attentiveness after onboarding, a pattern consistent with, though not proof of, the same growth strain Glassdoor reviewers describe internally.

Looking for a KlientBoost Alternative?

Clients on G2 and Clutch describe a real gap in attentiveness once onboarding ends, and if a rotating or thinning point of contact after month one is the concern, PipeRocket Digital is a B2B SaaS marketing agency built around a small client roster and a senior-led pod, no junior handoff, for the life of the engagement. Pipeline reporting, covering MQLs, CAC, and pipeline value, starts by week four, on a $3,000/month scope-based retainer with no setup fee.

Our core services include:

• SaaS marketing
• SaaS SEO
• SaaS PPC
• AI SEO

See the full breakdown in PipeRocket Digital vs KlientBoost .

If you’re looking for a SaaS marketing agency where the same senior team stays on your account past onboarding, let’s talk .

Every rating on this page is published by the third-party review platform named beside it and was read on the "last checked" date shown. Scores change as new reviews land — check the source link for the current figure. PipeRocket Digital is the publisher of this page and a competitor of the agency reviewed; see our research methodology.

Praveen Ravi Co-Founder, PipeRocket Digital

Praveen is a performance-driven marketing leader with over a decade of experience in paid acquisition and demand generation for B2B SaaS companies. As Co-Founder of PipeRocket Digital, he specializes in building high-ROI paid media strategies, scaling pipeline through data-driven experimentation, and aligning marketing efforts directly with revenue outcomes.

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