Top 10 Construction Angel Investors in Austria in January 2026

Last updated: Jan 2026 A list of 10 angel investors that invest in Construction startups based in Austria. We rank investors based on the number of investments they made in Construction companies from Austria. We update this investor list every month.

Top 10 Construction Angel Investors in Austria in January 2026

Investor	Construction Austria investments
Ibrahim Imam	1
Laura Raggl	1
Peter Steinberger	1
Sander van de Rijdt	1
Gerhard Kornfeld	1
Niki Stadler	1
Reinhard Manzl	1
Johann "Hansi" Hansmann	1
Domagoj Dolinsek	1
Ferdinand Dietrich	1

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Ibrahim had already founded two companies during his studies at the Vienna University of Technology. After completing his studies, he worked with Sander to launch several other startups in the IT sector and has considerable experience in B2B sales. At PlanRadar, he’s primarily responsible for Marketing & Sales.

Investment focus

Software, Information Technology, CRM
Angel, Series A
Austria

Portfolio highlights

ToolSense — Connecting the way OEMs do business.ToolSense enables OEMs to improve customer service, generate insights for R&D and increase customer loyalty - through digitizing their products with the 'ToolSense NOW' IIoT platform and 'ToolSense IOT' Hardware.ToolSense is the winner of Austrian Foreign Trade Award "Born GlobalChampion 2018", ORF Futurezone Award "Best IoT Startup 2017", part of Deutsche Telekom's "hub:raum NB-IoT Warp Program", part of SAP's "Startup Focus Program" and part of University of Applied Sciences Technikum Vienna's "Student Startup Incubator Program".
hello again — hello again is a software that offers digital loyalty solutions. Their service includes customer relationships, customer loyalty management, software engineering, loyalty club, communication, customer acquisition, sales promotion, and insights.

Laura Raggl

Investment focus

SaaS, Software, Procurement
Angel
Austria

Portfolio highlights

Scripe — Create viral LinkedIn posts in seconds with AI. Scripe is your personal branding workspace to create content 10x faster.
reebuild — reebuild is the developer of an online application for construction companies designed to automate material procurement and logistics. Their digital infrastructure platform connects construction companies, industry, and trade, enabling clients to build their invoices and environmental data in a secure cloud and take over administrative processes inthe background.

Founder of PSPDFKit

Investment focus

SaaS, Software, Art
Seed, Angel, Pre-Seed
Austria, Germany

Portfolio highlights

reebuild — reebuild is the developer of an online application for construction companies designed to automate material procurement and logistics. Their digital infrastructure platform connects construction companies, industry, and trade, enabling clients to build their invoices and environmental data in a secure cloud and take over administrative processes inthe background.
ContextSDK — ContextSDK transforms your app using real-time user context to improve conversions. Enhance user satisfaction and raise app revenue by knowing your users' unique needs, no matter where they are.
123-Transporter — Transporter mieten ab nur 45€ Volle 24h | Unlimitierte KM | digitale Vignette inkl. Einfach. Flächendeckend. Kundenzentriert: https://de.trustpilot.com/review/123-transporter.at

After studying at the Vienna University of Technology and Vienna University of Economics, Sander worked for an international consulting group. From 2006, he has launched several IT companies in partnership with Ibrahim. At PlanRadar, he’s mainly responsible for management and finance.

Investment focus

Software, Analytics, Construction
Series A
Austria

Portfolio highlights

Shopstory — boomerank is a SaaS that helps eCommerce companies grow automatically with help of a powerful AI and the creation of an immense data hub.
ToolSense — Connecting the way OEMs do business.ToolSense enables OEMs to improve customer service, generate insights for R&D and increase customer loyalty - through digitizing their products with the 'ToolSense NOW' IIoT platform and 'ToolSense IOT' Hardware.ToolSense is the winner of Austrian Foreign Trade Award "Born GlobalChampion 2018", ORF Futurezone Award "Best IoT Startup 2017", part of Deutsche Telekom's "hub:raum NB-IoT Warp Program", part of SAP's "Startup Focus Program" and part of University of Applied Sciences Technikum Vienna's "Student Startup Incubator Program".

Gerhard Kornfeld

Investment focus

SaaS, Software, Procurement
Angel
Austria

Portfolio highlights

reebuild — reebuild is the developer of an online application for construction companies designed to automate material procurement and logistics. Their digital infrastructure platform connects construction companies, industry, and trade, enabling clients to build their invoices and environmental data in a secure cloud and take over administrative processes inthe background.

Niki Stadler

Investment focus

SaaS, Software, Navigation
Seed, Angel
Austria

Portfolio highlights

reebuild — reebuild is the developer of an online application for construction companies designed to automate material procurement and logistics. Their digital infrastructure platform connects construction companies, industry, and trade, enabling clients to build their invoices and environmental data in a secure cloud and take over administrative processes inthe background.
Shadowmap — Discover The Sun for Everyone with Shadowmap: your global 3D map for sunpath visualization, shadow analysis and solar planning for homes and projects.

Reinhard Manzl

Investment focus

SaaS, Software, Navigation
Seed, Angel
Austria

Portfolio highlights

reebuild — reebuild is the developer of an online application for construction companies designed to automate material procurement and logistics. Their digital infrastructure platform connects construction companies, industry, and trade, enabling clients to build their invoices and environmental data in a secure cloud and take over administrative processes inthe background.
Shadowmap — Discover The Sun for Everyone with Shadowmap: your global 3D map for sunpath visualization, shadow analysis and solar planning for homes and projects.

Dr. Johann ‘Hansi’ Hansmann was born in Austria and studied economics in Vienna. He spent the major part of his professional life working as an executive in the pharmaceutical industry in Austria, Germany, UK and Spain. He gathered several years of entrepreneurial experience running successfully his own pharmaceutical company in Spain afterconducting a management buy-out of a big pharmaceutical plant, making an exit in 2003. Since this time he is active as investor and business angel. He currently holds investments with a geographical focus on Austria, Germany, UK and Spain both internet and in the health industry. He led Runtastic, shpock, mysugr and just recently durchblicker and Busuu to extraordinary exits. He was president of the ‘Austrian Angels Investors Association’ until 2021, was awarded 'Best European Early Stage Investor' in 2016 by eban.org and is now based in Vienna and tries to find spare time to ride his mountain bike.