A curated network connecting key nodes in the energy transition
The energy transition is rich in innovation, yet meaningful connections between founders, investors, and key operators remain fragmented.I build a curated network that brings these key players together through high-signal introductions and conversations.The focus is on signal over volume—building relationships that are relevant, timely, and compounding in value.

Yuqing (Quin) Wang — Founder
Strategic introductions between founders and investors in the energy transition.I operate across three core dimensions to ensure high-signal alignment:Technology
With a background in chemistry and hands-on experience in advanced materials and battery research, I assess the scientific and technological foundations of each venture—separating real innovation from surface-level claims.Commercialization & Market
Drawing on my experience in building and running businesses, I evaluate market relevance, scalability, and execution potential. I focus on whether a solution can translate into real adoption and sustainable growth.Team
With a background in leadership coaching, I pay close attention to teams—their clarity of vision, resilience, and ability to execute under uncertainty. Strong teams are often the defining factor in turning technology into a successful business.This approach ensures introductions are not random, but based on strong alignment across technology, market, and team.
Conversations with entrepreneurs, investors, and policymakers across the energy transition ecosystem.Exploring the real decisions, constraints, and strategies behind building, scaling, and deploying energy innovation in practice.
For well-aligned introductions or relevant opportunities in the energy transition ecosystem, feel free to reach out.You can book a 15-minute introductory call or contact me directly at [email protected]












Greetings! I am Sigrid Stelling.
Starting my career in international hospitality taught me the value of connection and service.Today, I dedicate my energy to advising purpose-driven businesses and supporting the people behind them.What truly excites me is helping people from all walks of life—different generations, backgrounds, and industries—connect and grow. I love being that catalyst that helps them thrive and build something meaningful together.

Greetings, I am Stephen Kimbell.
After a 30 year career in corporate law, I wanted to get more directly involved in entrepreneurial
businesses and focus my energies on clean technologies.Since leaving the law, I have had various roles as founder, director and adviser to a range of
companies in the cleantech sector including recycling, wind businesses and fuel technologies.When not working on my current start up idea, I love meeting and working with technologists and
entrepreneurs in the cleantech sector.
Angaben gemäß § 5 TMG / Information according to § 5 TMGCatalyst Circle
Inhaber: Yuqing Wang
Virchowstraße 30
89075 Ulm, GermanyKontakt / Contact
Telefon: +49 176 7569 8865
E-Mail: [email protected]Umsatzsteuer-ID / VAT ID
Umsatzsteuer-Identifikationsnummer gemäß § 27a Umsatzsteuergesetz: DE362402870Verantwortlich für den Inhalt nach § 55 Abs. 2 RStV / Responsible for content according to § 55 para. 2 RStV:
Yuqing WangBildquellen / Image Sources
Designs and images: https://www.canva.com/
1. Name and Contact Details of the Controller
Yuqing Wang
Virchowstraße 30
89075 Ulm, Germany
Telephone: +49 176 7569 8865
Email: [email protected]
2. General Information
We take the protection of your personal data seriously. This privacy policy outlines how we collect, use, and protect your data in accordance with applicable data protection regulations, including the General Data Protection Regulation (GDPR) and the California Consumer Privacy Act (CCPA) where applicable.Visiting our website is generally possible without providing personal data. If personal data (such as your name, address, or email address) is collected, it is done on a voluntary basis wherever possible. This data is not shared with third parties without your express consent unless legally required or necessary for service delivery.
3. Your Rights Under GDPR and CCPA
Under the GDPR (EU residents), you have the right to:
Access your personal data (Art. 15 GDPR)
Correct inaccurate data (Art. 16 GDPR)
Erase your data (“right to be forgotten”, Art. 17 GDPR)
Restrict or object to processing (Art. 18 & 21 GDPR)
Data portability (Art. 20 GDPR)
Withdraw consent at any time (Art. 7(3) GDPR)Under the CCPA (California residents), you have the right to:
Know what personal information is being collected
Access your data and request deletion
Opt-out of the sale of personal information (we do not sell data)
Non-discrimination for exercising your rightsTo exercise any of these rights, please contact us at the email address listed above.
4. Data Collection and Processing Purposes
We collect and process personal data for the following purposes:
To provide and manage coaching services
To communicate with clients and subscribers
To schedule appointments and manage availability
To store and process client agreements and documentation
To send marketing communications (with consent)
To comply with legal obligations
5. Use of Third-Party Services
When you interact with our website or services, your data may be processed by the following third parties:Google Services
We use the following Google tools:
Google Cloud Storage for secure file storage
Gmail for business communication
Google Calendar for appointment scheduling
Google Meet for video calls and virtual coaching
Personal data may be processed during these interactions. Please refer to Google’s Privacy Policy.Brevo (CRM)
We use Brevo (formerly Sendinblue) as our CRM to manage communications and store client contact details. Data processed includes names, emails, and client history. Handled per Brevo’s Privacy Policy.Stripe & Finom (Payments)
For secure online payments, we use Stripe and Finom. These providers process payment data such as name, card details, and billing info. See Stripe's Privacy Policy and Finom’s respective terms.TidyCal (Scheduling)
Appointment bookings are managed through TidyCal. When scheduling, data such as your name, email, and preferred time is collected and used to arrange appointments. Refer to TidyCal’s privacy terms via AppSumo.EmailOctopus (Email Marketing)
If you subscribe to our newsletter, your name and email are processed via EmailOctopus. Emails may contain tracking (e.g., open/click rates). You can unsubscribe at any time. View EmailOctopus’ Privacy Policy.Eversign (E-Signatures)
Coaching agreements are signed electronically via Eversign. Data like your name, email, and digital signature are stored securely. Details are processed per Eversign’s Privacy Policy.Carrd (Website Hosting)
Our website is hosted by Carrd. Standard technical data such as your IP address, browser type, and access time may be logged for security and performance. See Carrd’s Privacy Policy.
6. Data Security
We implement appropriate technical and organizational measures to protect your personal data from unauthorized access, disclosure, alteration, or destruction.
7. Data Retention
We retain personal data only as long as necessary for the purposes outlined above or as required by applicable law. You can request deletion of your data at any time (subject to legal or contractual limitations).8. International Data Transfers
Some of our third-party providers (e.g., Google, Brevo) may process data outside the EU. In such cases, we ensure appropriate safeguards are in place (e.g., Standard Contractual Clauses or adequacy decisions).9. Changes to This Policy
We reserve the right to update this privacy policy to reflect changes in legal, technical, or business developments. The latest version will always be available on our website.