Best Architecture & Engineering in Co. Derry
Ranked by Google ratings — updated 25 October 2026
As of 25 October 2026, LocallyIrish.ie ranks 5 architecture & engineering in Co. Derry by customer rating. The top-rated is C-Tec, with 4.9 stars from 19 Google ratings. Moyola Precision Engineering Ltd follows with 4.6 from 33 Google ratings.
How we rank
Each business is scored on its average rating weighted by how many ratings it has, so a handful of perfect scores cannot outrank hundreds of near-perfect ones. Reviews left on LocallyIrish.ie and the business's Google rating are counted together; the rating shown on each entry is labelled with its source. A Google rating needs at least 5 ratings to count. Businesses without enough ratings are listed separately, unranked. Paid listings cannot buy a higher position. The list refreshes hourly.
C-Tec
Gold · 2026 Top Rated
Moyola Precision Engineering Ltd
Silver · 2026 Top Rated
Newline Architects
Bronze · 2026 Top Rated
ELSS Engineering
Bradley & Company
Also in Co. Derry — not enough ratings to rank yet
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Best architecture & engineering by town
Best architecture & engineering in Derry — FAQs
What is the best architecture & engineering in Derry?
C-Tec is currently the top-rated architecture & engineering in Co. Derry, with 4.9 stars from 19 Google ratings. See the full ranked list above.
How are the best architecture & engineering in Derry ranked?
Each business is scored on its average rating weighted by how many ratings it has, so a handful of perfect scores cannot outrank hundreds of near-perfect ones. Reviews left on LocallyIrish.ie and the business's Google rating are counted together; the rating shown on each entry is labelled with its source. A Google rating needs at least 5 ratings to count. Businesses without enough ratings are listed separately, unranked. Paid listings cannot buy a higher position. The list refreshes hourly.
How can my architecture & engineering business rank higher in Derry?
Encourage happy customers to leave a review on your LocallyIrish.ie listing. More high-star reviews move you up the "Best of" ranking for Co. Derry.
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