The verdict in three sentences
For an automotive wiring harness subcontractor in Berlin chasing OEM and Tier 1 programmes, the right SEO agency is chosen with a 100 point scoring grid, giving 25 points to industrial references. Budget a 2026 market ballpark of 3,000 to 8,000 EUR a month plus 5,000 to 15,000 EUR for an audit, covering German and English technical content. With sales cycles of 9 to 24 months, drop any agency that talks about traffic before it talks about RFQs.
The context: selling to demanding automotive buyers
Picture a 150 person harness maker in Berlin Marzahn producing low volume, high mix harnesses for commercial vehicles, e-mobility startups, special vehicles and rail. Its buyers are purchasing and engineering teams at OEMs and Tier 1 suppliers across Germany, plus e-mobility firms in the Nordics and the Netherlands. They search for Kabelkonfektion Berlin, Kabelbaum Kleinserie, high voltage harness prototype or wire harness manufacturer Germany.
Before sending an RFQ, they check IATF 16949 certification, processes (crimping, ultrasonic welding, overmoulding, electrical testing), prototype lead times and high voltage capability. The site must answer those questions in German first, then English.
| Item | 2026 market ballpark | Comment |
|---|---|---|
| Monthly SEO retainer | 3,000 to 8,000 EUR | Depends on languages and pages |
| Initial audit | 5,000 to 15,000 EUR | Technical, multilingual, competitors |
| Languages | German and English, sometimes a third | German carries most OEM demand |
| Industrial queries | 25 to 50 per language | Harness, prototype, high voltage, small series |
| Capability and certification pages | 10 to 20 per language | One per process and sector |
| Sales cycle | 9 to 24 months | Supplier audit, samples, PPAP |
The 100 point scoring grid
Score each agency during or right after the pitch. Below 60 points, drop it; above 75, move to negotiation.
| Criterion | Points | What earns full marks |
|---|---|---|
| B2B industrial references | 25 | Two comparable manufacturing clients, results shown as RFQs |
| Native German and English writing | 20 | Native technical writers, sample engineering pages |
| Technical method (structure, hreflang, indexing) | 15 | Detailed audit plan with sample fixes |
| Understanding the automotive buying cycle | 10 | Raises IATF 16949, supplier audits, PPAP unprompted |
| Measurement and reporting | 10 | Weekly report on rankings and RFQs by country |
| Reversibility and ownership | 10 | Content and accounts in your name, 6 month exit |
| Price transparency | 10 | Tasks and volumes listed, no open ended lines |
| Total | 100 | Eligibility threshold 60, negotiation threshold 75 |
Kolonell can be scored with this grid like any other agency. Kolonell's SEO prices are 152 EUR a month for Essentiel, 305 EUR for Growth and 534 EUR for Premium (100,000, 200,000 and 350,000 FCFA); it is better suited to English pages, with German copy written or reviewed by a native engineer writer.
Red flags during the pitch
Some signals justify deducting points at once, or ending the process.
| Red flag | What it reveals | Suggested penalty |
|---|---|---|
| Machine translated German with no native review | Pages that German buyers will not trust | minus 15 points |
| Page one promised within 3 months | Inexperience or link buying | Disqualify |
| No question about IATF 16949 | No grasp of the sector | minus 10 points |
| Targets in sessions, never in RFQs | Wrong metric for a 9 to 24 month cycle | minus 10 points |
| Agency keeps content ownership | Total loss when the contract ends | Disqualify |
| 24 month lock in with no exit | Financial risk | minus 10 points |
One compliance point: German imprint (Impressum) and GDPR consent rules apply to your site, so the agency must not install tracking before consent. Ask how they configure it.
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Illustrative example, fictional persona: Katrin, head of sales at a harness maker in Berlin, scores three agencies at 55, 70 and 84 points. She picks the third at 5,500 EUR a month plus a 10,000 EUR audit, or 76,000 EUR in year one.
After nine months, she gets 4 qualified RFQs a month, three of them from German Tier 1 buyers. If one in twelve becomes a programme worth 1,500,000 EUR in annual revenue at 10 % margin, a single award brings 150,000 EUR of margin a year, about twice the year one SEO budget.
FAQ
What should a Berlin harness maker spend on SEO?
The 2026 market ballpark is 3,000 to 8,000 EUR a month plus 5,000 to 15,000 EUR for an audit. The number of languages explains most of the spread.
Why weight industrial references at 25 points?
Industrial SEO requires understanding very specific processes and buyers. An agency without comparable clients often needs 3 to 6 extra months to produce credible pages.
Is English worth it for a German supplier?
Yes if Nordic, Dutch or US e-mobility firms are targets. Plan 10 to 20 English pages mirroring your strongest German ones.
How long before a first programme award?
Allow 4 to 8 months for first RFQs, then 9 to 24 months of sales cycle with supplier audits and samples. A two year horizon is realistic.
Which threshold should we use?
Drop agencies below 60 points and negotiate above 75. In between, ask for a revised proposal on the weakest criteria.
Get found by the buyers already searching for you. Start with a visibility audit at 100,000 FCFA (about 152 EUR, credited against setup if you start within 30 days), then move to the Traffic Engine plan that fits your export markets, with a weekly report on RFQs. Traffic Engine. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
