Company lists · Data refreshed October 2026
Top 25 Geoscientific engineering services based in Türkiye
RevenueBase identified 1,011 company matches for geoscientific engineering services associated with Türkiye as of October 2026 and tracks 9,110 professional contacts across them, including 709 with verified work emails. Ankara is the largest hub.
This list covers company matches for geoscientific engineering services associated with Türkiye, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 26, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest geoscientific engineering services based in Türkiye
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 302 contacts → | ||||
Exact match “Tekfen Engineering was founded in 1984 to provide engineering services for our parent company, Tekfen Construction.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase | |||||
| 2 | 293 contacts → | ||||
Exact match “Founded in 1964, SU-YAPI Engineering and Consulting Inc.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase | |||||
| 3 | 200 contacts → | ||||
Exact match “TEMELSU is a well known Turkish consulting engineering company which provides multidisciplinary engineering services, locally and internationally, since its foundation in 1969.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase | |||||
| 4 | 193 contacts → | ||||
Exact match “ELTEMTEK A.Ş olarak temel mühendislik hizmetlerinden, yatırım danışmanlığına; işletme hizmetlerine, sistem analiz etütlerine, harita ve kamulaştırma hizmetlerine uzanan geniş bir…” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase | |||||
| 5 | 169 contacts → | ||||
Exact match “KASKTAŞ’ın doğuşu, 1957 yılında kurulan ve günümüzde dünyanın en büyük taahhüt firmaları arasında yer alan ENKA İnşaat ve Sanayi A.Ş.’ye dayanmaktadır.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase | |||||
| 6 | 126 contacts → | ||||
Exact match “IKSA Engineering Consultancy Construction Industry and Trade Inc; with its expert technical staff, numerous technological machinery and successfully concluded domestic and foreign…” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase | |||||
| 7 | 108 contacts → | ||||
Exact match “PROMER Müşavirlik Mühendislik A.Ş.® is an independent engineering-consultancy company offering various professional solutions and services for industries such as mining, power…” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase | |||||
| 8 | 99 contacts → | ||||
Exact match “ESC is a professional engineering company.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase | |||||
| 9 | 86 contacts → | ||||
Exact match “Apco is a full-service engineering, consultancy and project management firm, established in 1987.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase | |||||
| 10 | 84 contacts → | ||||
Exact match “Stadia Engineering and Consultancy was established in 2018.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase | |||||
| 11 | 75 contacts → | ||||
Exact match “The environment is a rising value in the world.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase | |||||
| 12 | 61 contacts → | ||||
Exact match “At A Glance;* Oil & Gas Engineering Company,* Managed by Practicing Refinery Engineers,* Engineering Expertise that Minimizes Cost & Improves Process,* Over 100 Total Project…” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase | |||||
| 13 | 51 contacts → | ||||
Exact match “DenAr Ocean Engineering Services SA was founded in 2007 and its headquarter is in Istanbul.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase | |||||
| 14 | 47 contacts → | ||||
Exact match “Zemin Etud ve Tasarim A.S.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase | |||||
| 15 | 44 contacts → | ||||
Exact match “EFK Engineering is an engineering and design company established in 2004 in Ankara, Turkey.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase | |||||
| 16 | 40 contacts → | ||||
Exact match “Our Services Professional Engineering Industrial Safety Repair and Field Service Commissioning System Integration Power Services” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase | |||||
| 17 | 40 contacts → | ||||
Exact match “Mühendislik alanında 20 yılı aşkın deneyime sahip olan dinamik ve çözüm odaklı grubumuz, küresel sanayiye hizmet vermek amacıyla kurulmuştur.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase | |||||
| 18 | 38 contacts → | ||||
Exact match “Yesti Group was founded in 1992.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase | |||||
| 19 | 37 contacts → | ||||
Exact match “HİZMET ALANLARIMIZ YÜKSEK YAPILAR ENDÜSTRİ VE ENERJİ TESİSLERİ TOPLU KONUTLAR HASTANELER TURİSTİK TESİSLER ve AVM'ler DEPREM GÜVENLİK ANALİZLERİ KENTSEL DÖNÜŞÜM PROJELERİ DİĞER…” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase | |||||
| 20 | 34 contacts → | ||||
Exact match “GeoDestek Zemar Ltd.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase | |||||
| 21 | 34 contacts → | ||||
Exact match “AGM Mühendislik 1993 yılında Ankara'da kurulmuştur.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase | |||||
| 22 | 29 contacts → | ||||
Exact match “SONAR provides Geotechnical Construction and Engineering Services; such as Deep Excavation and Retaining Systems, Deep Foundations, Ground Improvement, Cut-Off Walls, and Ground…” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase | |||||
| 23 | 28 contacts → | ||||
Exact match “GMK Energy is a world leader consulting, engineering and project development company which gives engineering, project design, consultancy, owner's engineering and integrated…” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase | |||||
| 24 | 27 contacts → | ||||
Exact match “Kordil provides hydrographic, oceanographic, geophysics, geodesic, photogrammetric and engineering surveying equipment / services from Turkey.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase | |||||
| 25 | 26 contacts → | ||||
Exact match “Ulus Mühendislik Olarak, ÇEVRE DANIŞMANLIĞI' nda Uzman Mühendis Kadrolarımızla Hizmet Sunmaktayız.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “geoscientific engineering services”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 1,011 geoscientific engineering services based in Türkiye
See the full list, filter by size, metro and specialty, and access 709 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Geoscientific engineering services based in Türkiye at a glance
As of Oct 26, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for Türkiye, so it is reported there. Company counts and contact totals on this page are exact for Türkiye, over 1,011 companies.
How this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Company records associated with Türkiye whose business descriptions match “geoscientific engineering services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every displayed company carries at least one verified work email. RevenueBase tracks 709 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on October 26, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Geoscientific engineering services by metro
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “geoscientific engineering services”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many geoscientific engineering services are there based in Türkiye?
RevenueBase identified 1,011 company matches for geoscientific engineering services associated with Türkiye as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
Tekfen Engineering tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most geoscientific engineering services?
Ankara leads with 170 company records, followed by Istanbul (149) and Cankaya (107).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 709 professional contacts with verified work emails tracked across these 1,011 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 26, 2026.
Ready to reach these companies? Verified emails and direct dials for all 1,011 geoscientific engineering services based in Türkiye. Start with a free account, no credit card.
Download this list →Related lists
Geoscientific engineering services by geography
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
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Company intelligence · public preview
Top 25 geoscientific engineering services based in Türkiye
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 1,011 matching company records for geoscientific engineering services based in Türkiye, with 9,110 tracked contacts and 709 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 26, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 geoscientific engineering services based in Türkiye
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Tekfen Engineeringtekfenmuhendislik.comHQ: Sisli, TürkiyeReported employees: 201-500 | Sisli, Türkiye | 201-500 | Exact match | 302 contacts → |
“Tekfen Engineering was founded in 1984 to provide engineering services for our parent company, Tekfen Construction.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Su-Yapi Engineering & Consulting INCsuyapi.com.tr HQ: Ankara, TürkiyeReported employees: 501-1,000 | Ankara, Türkiye | 501-1,000 | Exact match | 293 contacts → |
“Founded in 1964, SU-YAPI Engineering and Consulting Inc.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Temelsu International Engineering Services INCtemelsu.com.trHQ: Ankara, TürkiyeReported employees: 201-500 | Ankara, Türkiye | 201-500 | Exact match | 200 contacts → |
“TEMELSU is a well known Turkish consulting engineering company which provides multidisciplinary engineering services, locally and internationally, since its foundation in 1969.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Eltemtek A.Şeltemtek.com.trHQ: Ankara, TürkiyeReported employees: 501-1,000 | Ankara, Türkiye | 501-1,000 | Exact match | 193 contacts → |
“ELTEMTEK A.Ş olarak temel mühendislik hizmetlerinden, yatırım danışmanlığına; işletme hizmetlerine, sistem analiz etütlerine, harita ve kamulaştırma hizmetlerine uzanan geniş bir…” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Kasktaşkasktas.com.trHQ: Beşiktaş, TürkiyeReported employees: 201-500 | Beşiktaş, Türkiye | 201-500 | Exact match | 169 contacts → |
“KASKTAŞ’ın doğuşu, 1957 yılında kurulan ve günümüzde dünyanın en büyük taahhüt firmaları arasında yer alan ENKA İnşaat ve Sanayi A.Ş.’ye dayanmaktadır.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  İksa Mühendislikiksamuhendislik.com.trHQ: Ankara, TürkiyeReported employees: 501-1,000 | Ankara, Türkiye | 501-1,000 | Exact match | 126 contacts → |
“IKSA Engineering Consultancy Construction Industry and Trade Inc; with its expert technical staff, numerous technological machinery and successfully concluded domestic and foreign…” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Promer Consultancy Engineering INCpromerengineering.com.trHQ: Ankara, TürkiyeReported employees: 51-200 | Ankara, Türkiye | 51-200 | Exact match | 108 contacts → |
“PROMER Müşavirlik Mühendislik A.Ş.® is an independent engineering-consultancy company offering various professional solutions and services for industries such as mining, power…” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  ESC Engineeringescprojects.nlHQ: Seyhan, TürkiyeReported employees: 201-500 | Seyhan, Türkiye | 201-500 | Exact match | 99 contacts → |
“ESC is a professional engineering company.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Apco Teknikapcoteknik.com.trHQ: Ankara And Istanbul, TürkiyeReported employees: 51-200 | Ankara And Istanbul, Türkiye | 51-200 | Exact match | 86 contacts → |
“Apco is a full-service engineering, consultancy and project management firm, established in 1987.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Stadia Engineeringstadia.com.trHQ: Çankaya, TürkiyeReported employees: 51-200 | Çankaya, Türkiye | 51-200 | Exact match | 84 contacts → |
“Stadia Engineering and Consultancy was established in 2018.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Çınar Engineering Consultancy INCcinarmuhendislik.comHQ: Etimesgut, TürkiyeReported employees: 51-200 | Etimesgut, Türkiye | 51-200 | Exact match | 75 contacts → |
“The environment is a rising value in the world.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Koryon Engineering & Consultancykoryon.com.trHQ: Bornova, TürkiyeReported employees: 11-50 | Bornova, Türkiye | 11-50 | Exact match | 61 contacts → |
“At A Glance;* Oil & Gas Engineering Company,* Managed by Practicing Refinery Engineers,* Engineering Expertise that Minimizes Cost & Improves Process,* Over 100 Total Project…” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Denar Ocean Engineering Services SAden-ar.comHQ: Sisli, TürkiyeReported employees: 11-50 | Sisli, Türkiye | 11-50 | Exact match | 51 contacts → |
“DenAr Ocean Engineering Services SA was founded in 2007 and its headquarter is in Istanbul.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Zemin Etüd VE Tasarım A.Şzeminas.com.trHQ: Cekmekoy, TürkiyeReported employees: 51-200 | Cekmekoy, Türkiye | 51-200 | Exact match | 47 contacts → |
“Zemin Etud ve Tasarim A.S.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  EFK Engineeringefkmuhendislik.comHQ: Çankaya, TürkiyeReported employees: 51-200 | Çankaya, Türkiye | 51-200 | Exact match | 44 contacts → |
“EFK Engineering is an engineering and design company established in 2004 in Ankara, Turkey.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Quad Plus Otomasyonquadplus.com.trHQ: Bursa, TürkiyeReported employees: 51-200 | Bursa, Türkiye | 51-200 | Exact match | 40 contacts → |
“Our Services Professional Engineering Industrial Safety Repair and Field Service Commissioning System Integration Power Services” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | QOS Quality Of Servicesqos.com.tr HQ: Kocaeli, TürkiyeReported employees: 201-500 | Kocaeli, Türkiye | 201-500 | Exact match | 40 contacts → |
“Mühendislik alanında 20 yılı aşkın deneyime sahip olan dinamik ve çözüm odaklı grubumuz, küresel sanayiye hizmet vermek amacıyla kurulmuştur.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Yesti Groupyestigroup.com HQ: Istanbul, TürkiyeReported employees: 201-500 | Istanbul, Türkiye | 201-500 | Exact match | 38 contacts → |
“Yesti Group was founded in 1992.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Perform Mühendi̇sli̇kpme.com.trHQ: İstanbul, TürkiyeReported employees: 51-200 | İstanbul, Türkiye | 51-200 | Exact match | 37 contacts → |
“HİZMET ALANLARIMIZ YÜKSEK YAPILAR ENDÜSTRİ VE ENERJİ TESİSLERİ TOPLU KONUTLAR HASTANELER TURİSTİK TESİSLER ve AVM'ler DEPREM GÜVENLİK ANALİZLERİ KENTSEL DÖNÜŞÜM PROJELERİ DİĞER…” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Geodestek Ltd. ŞTIgeodestek.comHQ: Ankara, TürkiyeReported employees: 11-50 | Ankara, Türkiye | 11-50 | Exact match | 34 contacts → |
“GeoDestek Zemar Ltd.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  AGM Mühendislikagm.com.trHQ: Ankara, TürkiyeReported employees: 11-50 | Ankara, Türkiye | 11-50 | Exact match | 34 contacts → |
“AGM Mühendislik 1993 yılında Ankara'da kurulmuştur.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | HQ: Kazan, TürkiyeReported employees: 201-500 | Kazan, Türkiye | 201-500 | Exact match | 29 contacts → |
“SONAR provides Geotechnical Construction and Engineering Services; such as Deep Excavation and Retaining Systems, Deep Foundations, Ground Improvement, Cut-Off Walls, and Ground…” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | GMK Energygmkenerji.com.tr HQ: Bayraklı, TürkiyeReported employees: 11-50 | Bayraklı, Türkiye | 11-50 | Exact match | 28 contacts → |
“GMK Energy is a world leader consulting, engineering and project development company which gives engineering, project design, consultancy, owner's engineering and integrated…” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Kordil Surveying & Engineering LTDkordil.com.trHQ: Istanbul, TürkiyeReported employees: 11-50 | Istanbul, Türkiye | 11-50 | Exact match | 27 contacts → |
“Kordil provides hydrographic, oceanographic, geophysics, geodesic, photogrammetric and engineering surveying equipment / services from Turkey.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Ulus Mühendi̇sli̇kuluscevre.com.trHQ: Maltepe, TürkiyeReported employees: 11-50 | Maltepe, Türkiye | 11-50 | Exact match | 26 contacts → |
“Ulus Mühendislik Olarak, ÇEVRE DANIŞMANLIĞI' nda Uzman Mühendis Kadrolarımızla Hizmet Sunmaktayız.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,011 company matches
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Geoscientific engineering services: dataset insights
October 26, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
1,011 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for Türkiye, so it is reported there. Company counts and contact totals on this page are exact for Türkiye, over 1,011 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 26, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Geoscientific engineering services by metro
Questions about this company list
What does Exact match mean for geoscientific engineering services?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many geoscientific engineering services did RevenueBase find based in Türkiye?
The saved snapshot records 1,011 matching company records, 9,110 tracked contacts and 709 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 26, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Geoscientific engineering services by geography
- Geoscientific engineering services based in Buenos Aires, Argentina
- Geoscientific engineering services based in Adelaide, Australia
- Geoscientific engineering services based in Brisbane, Australia
- Geoscientific engineering services based in Melbourne, Australia
- Geoscientific engineering services based in Perth, Australia
- Geoscientific engineering services based in Sydney, Australia
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- Geoscientific engineering services based in Vienna, Austria
- Geoscientific engineering services based in Barueri, Brazil
- Geoscientific engineering services based in Belo Horizonte, Brazil
- Geoscientific engineering services based in Brasilia, Brazil
- Geoscientific engineering services based in Campinas, Brazil
Cite this list
RevenueBase Data Team. Top 25 geoscientific engineering services based in Türkiye. Snapshot: October 26, 2026. https://revenuebase.ai/companies/geoscientific-engineering-services/turkiye.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Geoscientific engineering services based in Buenos Aires, Argentina
- Geoscientific engineering services based in Adelaide, Australia
- Geoscientific engineering services based in Brisbane, Australia
- Geoscientific engineering services based in Melbourne, Australia
- Geoscientific engineering services based in Perth, Australia
- Geoscientific engineering services based in Sydney, Australia
Company intelligence · public preview
Top 25 geoscientific engineering services based in Türkiye
RevenueBase records 1,011 matching company records for geoscientific engineering services based in Türkiye, with 9,110 tracked contacts and 709 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 26, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 geoscientific engineering services based in Türkiye
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Tekfen Engineeringtekfenmuhendislik.com HQ: Sisli, TürkiyeReported employees: 201-500 | Sisli, Türkiye | 201-500 | Exact match | 302 contacts → |
“Tekfen Engineering was founded in 1984 to provide engineering services for our parent company, Tekfen Construction.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Su-Yapi Engineering & Consulting INCsuyapi.com.tr HQ: Ankara, TürkiyeReported employees: 501-1,000 | Ankara, Türkiye | 501-1,000 | Exact match | 293 contacts → |
“Founded in 1964, SU-YAPI Engineering and Consulting Inc.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Temelsu International Engineering Services INCtemelsu.com.tr HQ: Ankara, TürkiyeReported employees: 201-500 | Ankara, Türkiye | 201-500 | Exact match | 200 contacts → |
“TEMELSU is a well known Turkish consulting engineering company which provides multidisciplinary engineering services, locally and internationally, since its foundation in 1969.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Eltemtek A.Şeltemtek.com.tr HQ: Ankara, TürkiyeReported employees: 501-1,000 | Ankara, Türkiye | 501-1,000 | Exact match | 193 contacts → |
“ELTEMTEK A.Ş olarak temel mühendislik hizmetlerinden, yatırım danışmanlığına; işletme hizmetlerine, sistem analiz etütlerine, harita ve kamulaştırma hizmetlerine uzanan geniş bir…” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Kasktaşkasktas.com.tr HQ: Beşiktaş, TürkiyeReported employees: 201-500 | Beşiktaş, Türkiye | 201-500 | Exact match | 169 contacts → |
“KASKTAŞ’ın doğuşu, 1957 yılında kurulan ve günümüzde dünyanın en büyük taahhüt firmaları arasında yer alan ENKA İnşaat ve Sanayi A.Ş.’ye dayanmaktadır.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | İksa Mühendislikiksamuhendislik.com.tr HQ: Ankara, TürkiyeReported employees: 501-1,000 | Ankara, Türkiye | 501-1,000 | Exact match | 126 contacts → |
“IKSA Engineering Consultancy Construction Industry and Trade Inc; with its expert technical staff, numerous technological machinery and successfully concluded domestic and foreign…” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Promer Consultancy Engineering INCpromerengineering.com.tr HQ: Ankara, TürkiyeReported employees: 51-200 | Ankara, Türkiye | 51-200 | Exact match | 108 contacts → |
“PROMER Müşavirlik Mühendislik A.Ş.® is an independent engineering-consultancy company offering various professional solutions and services for industries such as mining, power…” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | ESC Engineeringescprojects.nl HQ: Seyhan, TürkiyeReported employees: 201-500 | Seyhan, Türkiye | 201-500 | Exact match | 99 contacts → |
“ESC is a professional engineering company.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Apco Teknikapcoteknik.com.tr HQ: Ankara And Istanbul, TürkiyeReported employees: 51-200 | Ankara And Istanbul, Türkiye | 51-200 | Exact match | 86 contacts → |
“Apco is a full-service engineering, consultancy and project management firm, established in 1987.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Stadia Engineeringstadia.com.tr HQ: Çankaya, TürkiyeReported employees: 51-200 | Çankaya, Türkiye | 51-200 | Exact match | 84 contacts → |
“Stadia Engineering and Consultancy was established in 2018.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Çınar Engineering Consultancy INCcinarmuhendislik.com HQ: Etimesgut, TürkiyeReported employees: 51-200 | Etimesgut, Türkiye | 51-200 | Exact match | 75 contacts → |
“The environment is a rising value in the world.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Koryon Engineering & Consultancykoryon.com.tr HQ: Bornova, TürkiyeReported employees: 11-50 | Bornova, Türkiye | 11-50 | Exact match | 61 contacts → |
“At A Glance;* Oil & Gas Engineering Company,* Managed by Practicing Refinery Engineers,* Engineering Expertise that Minimizes Cost & Improves Process,* Over 100 Total Project…” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Denar Ocean Engineering Services SAden-ar.com HQ: Sisli, TürkiyeReported employees: 11-50 | Sisli, Türkiye | 11-50 | Exact match | 51 contacts → |
“DenAr Ocean Engineering Services SA was founded in 2007 and its headquarter is in Istanbul.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Zemin Etüd VE Tasarım A.Şzeminas.com.tr HQ: Cekmekoy, TürkiyeReported employees: 51-200 | Cekmekoy, Türkiye | 51-200 | Exact match | 47 contacts → |
“Zemin Etud ve Tasarim A.S.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | EFK Engineeringefkmuhendislik.com HQ: Çankaya, TürkiyeReported employees: 51-200 | Çankaya, Türkiye | 51-200 | Exact match | 44 contacts → |
“EFK Engineering is an engineering and design company established in 2004 in Ankara, Turkey.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Quad Plus Otomasyonquadplus.com.tr HQ: Bursa, TürkiyeReported employees: 51-200 | Bursa, Türkiye | 51-200 | Exact match | 40 contacts → |
“Our Services Professional Engineering Industrial Safety Repair and Field Service Commissioning System Integration Power Services” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | QOS Quality Of Servicesqos.com.tr HQ: Kocaeli, TürkiyeReported employees: 201-500 | Kocaeli, Türkiye | 201-500 | Exact match | 40 contacts → |
“Mühendislik alanında 20 yılı aşkın deneyime sahip olan dinamik ve çözüm odaklı grubumuz, küresel sanayiye hizmet vermek amacıyla kurulmuştur.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Yesti Groupyestigroup.com HQ: Istanbul, TürkiyeReported employees: 201-500 | Istanbul, Türkiye | 201-500 | Exact match | 38 contacts → |
“Yesti Group was founded in 1992.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Perform Mühendi̇sli̇kpme.com.tr HQ: İstanbul, TürkiyeReported employees: 51-200 | İstanbul, Türkiye | 51-200 | Exact match | 37 contacts → |
“HİZMET ALANLARIMIZ YÜKSEK YAPILAR ENDÜSTRİ VE ENERJİ TESİSLERİ TOPLU KONUTLAR HASTANELER TURİSTİK TESİSLER ve AVM'ler DEPREM GÜVENLİK ANALİZLERİ KENTSEL DÖNÜŞÜM PROJELERİ DİĞER…” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Geodestek Ltd. ŞTIgeodestek.com HQ: Ankara, TürkiyeReported employees: 11-50 | Ankara, Türkiye | 11-50 | Exact match | 34 contacts → |
“GeoDestek Zemar Ltd.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | AGM Mühendislikagm.com.tr HQ: Ankara, TürkiyeReported employees: 11-50 | Ankara, Türkiye | 11-50 | Exact match | 34 contacts → |
“AGM Mühendislik 1993 yılında Ankara'da kurulmuştur.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | HQ: Kazan, TürkiyeReported employees: 201-500 | Kazan, Türkiye | 201-500 | Exact match | 29 contacts → |
“SONAR provides Geotechnical Construction and Engineering Services; such as Deep Excavation and Retaining Systems, Deep Foundations, Ground Improvement, Cut-Off Walls, and Ground…” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | GMK Energygmkenerji.com.tr HQ: Bayraklı, TürkiyeReported employees: 11-50 | Bayraklı, Türkiye | 11-50 | Exact match | 28 contacts → |
“GMK Energy is a world leader consulting, engineering and project development company which gives engineering, project design, consultancy, owner's engineering and integrated…” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Kordil Surveying & Engineering LTDkordil.com.tr HQ: Istanbul, TürkiyeReported employees: 11-50 | Istanbul, Türkiye | 11-50 | Exact match | 27 contacts → |
“Kordil provides hydrographic, oceanographic, geophysics, geodesic, photogrammetric and engineering surveying equipment / services from Turkey.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Ulus Mühendi̇sli̇kuluscevre.com.tr HQ: Maltepe, TürkiyeReported employees: 11-50 | Maltepe, Türkiye | 11-50 | Exact match | 26 contacts → |
“Ulus Mühendislik Olarak, ÇEVRE DANIŞMANLIĞI' nda Uzman Mühendis Kadrolarımızla Hizmet Sunmaktayız.” Recorded description excerpt · October 26, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,011 company matches
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Geoscientific engineering services: dataset insights
October 26, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
1,011 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for Türkiye, so it is reported there. Company counts and contact totals on this page are exact for Türkiye, over 1,011 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 26, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Geoscientific engineering services by metro
Questions about this company list
What does Exact match mean for geoscientific engineering services?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many geoscientific engineering services did RevenueBase find based in Türkiye?
The saved snapshot records 1,011 matching company records, 9,110 tracked contacts and 709 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 26, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
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Cite this list
RevenueBase Data Team. Top 25 geoscientific engineering services based in Türkiye. Snapshot: October 26, 2026. https://revenuebase.ai/companies/geoscientific-engineering-services/turkiye.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Geoscientific engineering services based in Buenos Aires, Argentina
- Geoscientific engineering services based in Adelaide, Australia
- Geoscientific engineering services based in Brisbane, Australia
- Geoscientific engineering services based in Melbourne, Australia
- Geoscientific engineering services based in Perth, Australia
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