Protecting the world's infrastructure with rope access technology
Protecting the world's infrastructure with rope access technology
We are a group of
Rope Access
professionals protecting global infrastructure.
Nationwide service & emergency response available Performing high-altitude work safely, quickly, and accurately.
Keystone Co., Ltd. is a company specializing in rope access inspections with a proud 35-year accident-free record.
We safely and reliably inspect high-altitude infrastructure such as bridges, slopes, and dams using ‘3D rope access technology’ performed by skilled technicians.
We have over 4- full-time staff members and have established an operational system that can respond quickly to sites throughout Japan.
In addition to regular operations, we flexibly respond to sudden requests and urgent situations with tight deadlines. We answer to field’s call of “We need you here now!” with prompt response and reliable technical expertise.
Furthermore, we thoroughly implement preventive measures to minimize the dangers of working at heights, ensuring safety-first site management.
We at Keystone have an established reputation for technical excellence in bridge, slope, and high-place structure surveys and inspections. We handle inspections requiring special techniques and precision surveys of anchor equipment.
We ensure highly accurate inspection work by leveraging our extensive experience and specialized know-how cultivated through numerous project sites.
Adittionally, we ensure proper use of equipment during surveys to provide safe and high-quality work. Our reliable techniques and quality have earned high trust and evaluation from our clients.
Our strength lies in safe, fast and reliable “3D Rope Access Technology.
We have maintained zero serious accidents for 35 years since our founding and have recieved high evaluations for accident prevention and safety management.
For high-place infrastructure inspections and prevention work on bridges, dams, and slopes.We proved reliable operations utilizing safe rope access techniques and methods. Along with technical capabilities and responsiveness that avoid accident risks.
All of our staff are specialist technicians with advanced rope access skills. We have earned trust on many sites as a team of experienced professionals who can flexibly respond to any site.
Keystone has highly motivated staff.
Technicians with special qualifications thoroughly manage safety and execute dangerous high-place work safely and quickly.
Our excellent teamwork is also a major strength.
As a professional group that ahs undergone extensive training, we achieve consistent quality and smooth response.
We respond precisely to what our customers truly desire.
No matter how difficult the site, we propose optimal solutions with flexble thinking and reliable technology.
If you feel “It might be impossible”, please consult with us once.
We align with your budget and propose the optimal plan.
We’ll think together about ways to keep costs down without compromising quality.
Beyond mere construction, we aim for results you can be truly satisfied with. Your words, “I’m glad I chose you.” are our greates joy.
Keystone works efficiently and very quickly.
The atmosphere at the worksite is plesant. I appreciate the smiles amid the tension.
I was surprised to see female staff members with excellent rope access skills!
I've used other contractors before, but they took much longer. I'm satisfied with choosing Keystone.
We have received many other favorable comments as well.
Q: Are drones your competitors?
A: Drones are effective, but they are not suitable for inspections that require close visual examination or physical contact. We use rope access to reliably check blind spots and detail that are difficult to examine with drones.
Q: Are there other rope access companies?
Yes, there are, but caution is necessary. In recent years, the number of companies performing rope access has increased but we see cases where companies inexperienced in surveys and inspections, or those with immature rope techniques enter work sites. Many companies from different industries are entering this field, and some may have problems regarding technical capabilities and safety management, so it's necessary to carefully select who you hire.
Keystone Corporation has opened a Sapporo Office in front of Sapporo Station.
We have established our base in Sapporo, Hokkaido, with the aim of providing even more attentive service than before.
We look forward to your continued support.
Keystone Corporation Sapporo Office
Address:
1-6 Kita 4-jo Nishi 4-chome, Chuo-ku, Sapporo City, Hokkaido 060-0004
Phone: 011-804-8641
Contact:
Bridge inspection, structures… Yamaguchi, Hosugi
Slopes, rock walls, etc… Nakatani
We have launched a new specialized company, “Keysont Sukidachi Service Corporation” (abbreviated as KESS), focused on the needs of the construction consulting industry to handle survey and inspection services for general structures and infrastructures facilities that are not in specialized environments such as heights or slopes.
Keystone prides itself on high technical capabilities and reliability not only in rope access technology but also in infrastructures inspection in general. We have built a system that can respond to a wider range of site challenges by leveraging that experience and track record.
Would you like to make your daily report and ledger creation easier?
Our “computer & programming loving staff (lovingly called otaku) ” have developed original applications useful for field operations, availble for free!
✔ Dramatically reduces time for simple tasks.
✔ Tools that our staff actually use and are ‘impressed’ with.
✔ Available for immediate download just by registering
If you think ‘this is convenient!’ we welcome your support and good will. ✨
Please fill in the necessary information in the form below and make use of it!
Keystone Corporation is recruiting specialized staff for infrastructure inspections and structural surveys utilizing rope access technology
In particular, we offer preferential treatment to those with practical experience in the construction consulting industry or qualified individuals. We are also actively recruiting new graduates and second career individuals with backgrounds in geology, disaster prevention, civil enginerring, and structural engineering.
We have an independence support system through our “franchise system” in Sapporo, Sendai, Naha, and other locations, supporting future career advancement and regional expansion.
Would you like to contribute your abilites ot socially meaningful work supporting infrastructure using rope access?
Keystone Corporations’s professional team of world-class rope access technology [SORAT] qualification holders enables work in high and difficult places without using scaffolding or heavy machinery.
We protect everyone’s lives and livelihoods through road disaster prevention inspections and infrastructures inspections.
Utilizing rope access for bridge inspections. Quickly performing work without scaffolding.Rope access techniques originally applied mountain climbing and rescue techniques and has a history of being utilized in Western countries since the 1970s.
In recent years, it has become an essential method for structures where scaffolding installation is difficult, or in sites with strict cost and time constraints.
Our proprietary 3D rope access technique [SORAT] enables not just vertical movement but free directional movement including forward, backward, left, right, and diagonal, efficiently and achieving various high-place work such as bridge inspections, slope surveys, and visual contact inspections of rock walls.
✅ Safety-first “2-point security principle”
✅ Optimal operational technique for bridges, slopes, dams, and exterior wall inspections.
✅ Reliable access through precise control of descent and ascent.
✅ Securing anchor points with proprietary anchor systems.
✅ Using UIAA and EN standard equipment for high-strength, light weight design.
Our rope access technique thoroughly implements safety measures based on the revised Labor Safety and Health Law (Industrial Safety and Health Act) and boasts a 35-years accident-free record since our founding.
🔹 “2-point security” principle: Ensuring safety with a minimum of two anchor points.
🔹 “Temporary load test”: Confirming anchor point strength for safe descent.
🔹 “Operation check”: Inspecting proper functioning of descenders and ascenders.
🔹 “Rope check”: Preventing deterioration through thorough inspection before and after work.
We also conduct regular training and emergency response drills to constantly improve our level of safety assurance.
Our technique has numerous achievements in infrastructure maintenance, including bridge inspections.
We develop proprietary techniques adapted to site characteristics, suc as bridge inpsections using beam sliders, high-place movement with V-rig systems, and horizontal movement using Tyrolean bridges.
Furthermore, for exterior wall surveys and building inspections, we adopt optimal inspection methods combining anchor technology with descent thenology to achieve safe and higly precise operations.
岩壁・落石調査、法面調査、橋梁点検、補修工事など、幅広いサービスを提供しています。
2012年に発生した中央自動車道笹子トンネルの事故を契機に、インフラ構造物は近接目視点検が義務付けられました。
構造物の点検には、仮設足場・作業車・ドローンなど多様な手法が用いられますが、ロープアクセス技術は、他の方法では接近が難しい箇所でも作業できる手法として多くの現場で採用されており、その中でも当社きぃすとんのロープアクセス技術【SORAT】は「安全・迅速・確実」な施工を実現し、多様な現場に対応しています。
老朽化が進む橋梁の安全を守るには、的確な点検・調査が不可欠です。株式会社きぃすとんでは、ロープアクセス技術を活かし、足場なしで橋梁の下面や側面に安全・迅速にアクセス。目視・接触による詳細な点検や補修を、高精度・高効率で実施しています。
経年劣化や災害リスクに備え、法面や盛土・擁壁などの土工構造物を的確に点検。
ロープアクセスにより、急斜面や高所でも安全・迅速に近接目視と撮影を行い、補修の必要性を見極めます。
高所・難所の難問を、あっさり解決いたします。
速さの秘訣は、当社が開発したロープアクセス技術【SORAT】。上下移動だけではなく、前後左右への移動を厳格な安全性を担保しながら可能にする事で、圧倒的なスピードと高い業務効率を実現します。
巧さの秘訣は、長年の豊富なノウハウによる調査・点検技術、そして高品質な成果物の制作技術。お客様から大変高い評価を受けております。
コスパが良く、創業以来35年間無事故です。
ロープアクセス調査で選ばれる
きぃすとんの特徴
お客様に提供できるバリュー
株式会社きぃすとんは、自社開発の世界最先端「3次元ロープアクセス技術【SORAT】」を駆使しすることで、他社では対応が難しい高所・難所にも安全・迅速・確実にアクセスすることが可能です。
足場や高所作業車を使用せずに作業を行うため、作業コストの大幅な削減と作業スピードの向上を実現し、タイパとコスパの両面で高い評価をいただいています。
創業以来35年間、無事故を継続中。ゼネコン仕込みの安全管理哲学を基盤に、安全確保を徹底した教育体制を構築しています。
『2点確保』をはじめとする高度な安全技術を全スタッフに徹底指導し、全員が年1回の資格更新とレスキュー訓練を受けています。
安全意識の高いスタッフ選考を行い、現場ごとに正確な安全管理を実施しています。
「お客様のご予算に合わせた最高の仕事」を徹底しており、予算が厳しい案件でもお断りすることはありません。豊富な経験を活かし、コスト削減と高効率な作業を両立させた最適な提案を行っています。
「予算が厳しいほど知恵の見せどころ」という姿勢で、お客様に大満足いただける成果を提供しています。
最大の強みは、
優秀なやる気のあるスタッフ
がそろっていることです。
当社は、高度な資格を持つ技術者が、安全装備と最新の工法を駆使して現場作業を行います。
業界屈指の安全実績と迅速な作業によるコスパの高さ。信頼される技術が私たちの強みです。
業界最先端のロープアクセス技術!
きぃすとんの
強み
私たちのスペック
当社は、自社開発の「3次元ロープアクセス技術【SORAT】」を操る熟練技術者集団です。
高所・難所での近接目視・接触観察が得意で、他社がアクセスできない箇所にも安全かつ迅速に到達できます。
また、技術向上を重視した環境づくりを行い、大型訓練施設と研修センターを完備。国内外からの技術者育成にも力を入れています。
創業から35年間無事故という実績は、当社の誇りです。
『2点確保』を代表とするロープアクセス技術SORATの安全技術を基礎に、スタッフ全員が徹底した安全管理を実践しています。資格の更新やレスキュー訓練を義務付け、現場ごとに最適な安全管理を行っています。「安全第一」の姿勢を全スタッフが共有し、常に万全の体制で業務にあたっています。
弊社代表は地質専攻であり、弊社のルーツは岩壁等の調査です。地質の知見を活かした、岩壁調査、落石調査、地すべり調査、法面調査等が大得意です。他社にはない大きな特徴です。
当社では、やる気のあるスタッフを積極的に採用・育成しています。やる気を評価する社風が根付いており、優秀なスタッフが集まるプロ集団です。スタッフ間での情報共有やチームワークを重視し、案件ごとに最適なチーム編成を行うことで、効率的かつ高品質な業務遂行を可能にしています。
「お客様中心主義」を掲げ、お客様が真に求めていることを正確に理解した仕事を提供することを目指しています。
「仕事を断らない」「ご予算に合わせる」
「感動・感激・満足を提供する」という3大方針を徹底し、どの案件にも全力で取り組んでいます。お客様にとって最適な提案を行い、「安いからと断らない」という姿勢で信頼と実績を積み上げています。
京都を拠点としながらも、全国各地へ軽いフットワークで対応可能です。技術と情報の共有がスムーズな社内体制を整え、常に最高のパフォーマンスを発揮します。
株式会社きぃすとんは、技術力・安全力・顧客満足を兼ね備え、日本国内はもちろん、世界的なロープアクセス技術のリーディングカンパニーとして、皆様に安心と信頼をお届けします。
About the Company
Keystone Co., Ltd. Office
社名
株式会社きぃすとん
代表取締役
中谷 登代治(なかたにとよはる)
設立
平成3年
(1991年)
所在地
〒617-0856
京都府長岡京市金ヶ原寿先6-1
TEL
075-959-9095
FAX
075-959-9096
メールアドレス
keystone@rope-access.co.jp
きぃすとん五條
大型訓練塔、研修・宿泊施設
〒637-0004
奈良県五條市今井4-2-57
九州支店
〒812-0011
福岡県福岡市
博多区博多駅前3-27-25
TEL 092-686-8022
東京オフィス
〒100-6213
東京都千代田区丸の内1-11-1
PCP丸の内
TEL 03-6775-3643
札幌オフィス
〒060-0004
北海道札幌市中央区北4条西4丁目1-7
TEL 011-804-8641
建設業許可
京都府知事 （特-6）第44402号
土木・とび・土工舗装・塗装・鋼構造物・しゅんせつ水道施設・石工事業
より詳しい会社情報はこちらからご覧ください。
安全で迅速なロープアクセス施工の事例や現場の様子など、役立つ情報を随時更新しています。
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