# Heiner Sussner

> Heiner Sussner is a Series A investor at Miramar Ventures (Orange) backing Software and SaaS. See 8 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [Miramar Ventures](https://shizune.co/investors/profile/miramar-venture-partners)
- Location: Orange, United States
- Total investments: 8
- Last investment: Jun 2013
- Lead investor: 50%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/heiner-sussner-136b668

Heiner Sussner is a Series A investor at Miramar Ventures in Orange focused on Software and SaaS. Heiner Sussner is the Managing Director at Miramar Venture Partners, where he focuses on storage and cloud-related investments.In addition to AccelOps, he is a director of Fastsoft, IMT, Jeda Networks and Matrix Sensors, and previously served on the board of Azuro (acquired by Cadence), Protego Networks (acquired by Cisco) and SiliconSystems(acquired by Western Digital).Before joining Miramar, he was a senior managing director of H&Q Asia Pacific, where he was responsible for technology investments in Asia and Silicon Valley and served on the boards of several technology start-ups, including Headway Technology (acquired by TDK in 2000).Heiner started his professional career at the Max Planck Institute for Solid State Physics in Stuttgart and joined IBM Research in San Jose, Calif., in 1980, working on advanced recording technology. In 1986, he became director of storage systems and technology for IBM Research and in 1992 joined IBM Europe in Paris, where he became co-founder and director of IBM Europe’s corporate venture group.Heiner is a graduate of the Technical University of Munich and received his Ph.D. in physics in 1976 for his work at the Centre Nationale de Recherche Scientifique in Grenoble, France, and the University of Konstanz, Germany.He is author of numerous scientific publications, holds several patents and was awarded the 1994 IEEE Medal for Engineering Excellence.

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Software | 3 | 38% |
| SaaS | 2 | 25% |
| Analytics | 2 | 25% |
| Cloud Computing | 2 | 25% |
| Apps | 1 | 13% |

29 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Series A | 6 | 75% |
| Series B | 3 | 38% |
| Seed | 1 | 13% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Tempo AI | Tempo AI is a developer of a smart calendar application used to enhance work activities and schedules.In February 2013, Tempo AI launched the Tempo Smart Calendar mobile app, the first intelligent calendar that’s like having a personal assistant prepare what’s next to save users time and eliminate hassles. Tempo is context-aware to personalizeexperiences so routine tasks take the fewest taps. It learns patterns and behaviors to constantly optimize the smart calendar experience. | $10M | Series A | Jun 20, 2013 |  |
| Load DynamiX | As a leader in storage infrastructure workload analytics and performance validation, Load DynamiX empowers:1. IT organizations with the insight they need to optimize the performance, availability, and cost of their storage infrastructure. Load DynamiX accelerates new application roll-outs and eliminates the risk of new technology deployments.2. Storage and network equipment manufacturers with the insight they need to maximize the performance, scalability and reliability of their products. Load DynamiX accelerates your time to market.Addressing file, block, and object storage technology validation, Load DynamiX has the unique capability and performance required to stress today’s most complex storage systems to their limits. | $7.3M | Series B | Sep 25, 2012 |  |
| Tempo AI | Tempo AI is a developer of a smart calendar application used to enhance work activities and schedules.In February 2013, Tempo AI launched the Tempo Smart Calendar mobile app, the first intelligent calendar that’s like having a personal assistant prepare what’s next to save users time and eliminate hassles. Tempo is context-aware to personalizeexperiences so routine tasks take the fewest taps. It learns patterns and behaviors to constantly optimize the smart calendar experience. | $2.5M | Seed | Dec 01, 2011 |  |
| AccelOps | AccelOps provides the leading IT operations analytics platform for the modern data center with a focus on security, network performance and compliance. The AccelOps platform automatically discovers, analyzes and automates IT issues in machine and big data across public, private and hybrid clouds spanning servers, storage, networks, security,applications and users. AccelOps’ unsupervised, machine learning engine sends real-time alerts when deviations occur that indicate a security or performance-impacting event. The AccelOps platform scales seamlessly and provides unmatched delivery of proactive security and operational intelligence, allowing organizations to be more responsive and competitive as they expand their IT capabilities. |  | Series A | Nov 20, 2007 |  |
| FastSoft | FastSoft, Inc. manufactures equipment to accelerate the download and distribution of Web applications, video, and digital content. Its products include FastSoft E Series Internet Accelerators, which create, sell, and distribute digital content using a centralized solution requiring no technology at the endpoints; and FastSoft E Series EX thataccelerates TCP traffic without requiring software or hardware at the receiving end. The company serves Internet content providers, such as graphics, animation, hosting companies, subscription data services, and software-as-a-service service providers; content distribution network service providers; media and entertainment-film, IPTV, and post-production; and government agencies, systems integrators, and gaming and software companies. FastSoft, Inc. was founded in 2006 and is based in Pasadena, California. |  | Series A | Jun 11, 2007 |  |
| Azuro | Azuro is an electronic design automation (EDA) company supplying software tools to design digital semiconductor chips. The company's clock tree synthesis and physical optimization technologies make chips faster, reduce chip power and accelerate chip time to market. Customers of Azuro's software include Broadcom, Cambridge SiliconRadio, NVIDIA, ST Microelectronics, and Texas Instruments. The company was founded in 2002, and has completed over 40 tapeouts since launching its first product in 2005. Azuro is headquartered in Santa Clara, CA with R&D in Cambridge, UK, and is privately held. |  | Series B | Jan 01, 2006 |  |
| Atomica Corp | Atomica Corp. (formerly Innovative Micro Technology) unleashes the power of Micro Electro-Mechanical Systems (MEMS) to help solve the great problems of our time. Utilizing a uniquely collaborative approach to development and manufacturing, it partners with innovative companies to deliver breakthrough MEMS-based solutions in cloud computing,autonomous vehicles, cell therapy, molecular diagnostics, genomics, 5G, the Internet of Things (IoT), and more. Atomica is the largest MEMS foundry in the USA, serving customers from its 130,000 ft2 manufacturing campus (including a 30,000 ft2 class 100 cleanroom) in Santa Barbara, California. The company is ISO 9001 certified and ITAR registered. Its extensive experience spans the full spectrum of MEMS, including photonics, sensors, microfluidic biochips, and other micro components. |  | Series A | Feb 01, 2005 |  |
| Protego Networks | Protego Networks provides network security appliances to enable organizations to identify, manage, and eliminate network attacks. The company's products correlate security event data, provide a graphical view of the source of an attack and affected systems, integrate and consolidate security event information from varies security products, andoffer advice to mitigate the attack. It serves financial services, manufacturing, managed services, health industrial, and government organizations internationally. The company was founded in 2002 and is based in Sunnyvale, California. |  | Series A | Jan 16, 2004 |  |

8 of 8 investments shown.

## Co-investors
- [Relay Ventures](https://shizune.co/investors/profile/relay-ventures) — VC Fund, 2 deals together
- [Sierra Ventures](https://shizune.co/investors/profile/sierra-ventures) — VC Fund, 2 deals together
- [SRI International](https://shizune.co/investors/profile/sri-international) — VC Fund, 2 deals together
- [Azure Capital Partners](https://shizune.co/investors/profile/azure-capital-partners) — VC Fund, 1 deal together
- [Benhamou Global Ventures](https://shizune.co/investors/profile/benhamou-global-ventures) — VC Fund, 1 deal together
- [Kinetic Ventures](https://shizune.co/investors/profile/kinetic-ventures) — VC Fund, 1 deal together

## About Miramar Ventures

VC Fund · Corona Del Mar, United States

Miramar Digital Ventures is a seed and early stage venture fund focused on the next evolution of data.

5 contacts available at Miramar Ventures.

| Name | Title | Profile |
| --- | --- | --- |
| Bruce Hallett | Managing Director | https://shizune.co/investors/profile/bruce-hallett |
| Bob Holmen | Managing Director | https://shizune.co/investors/profile/bob-holmen |
| Ed Milstein | Entrepreneur in Residence | https://shizune.co/investors/profile/ed-milstein |
| Heiner Sussner | Managing Director | https://shizune.co/investors/profile/heiner-sussner |
| Sherman Atkinson | Managing Director | https://shizune.co/investors/profile/sherman-atkinson |

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- [General Catalyst](https://shizune.co/investors/profile/general-catalyst-partners) — VC Fund

## FAQ

### What does Heiner Sussner invest in?

Heiner Sussner invests primarily in Software, SaaS and Analytics startups, most often at Series A and Series B stage. Most of the 8 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### When did Heiner Sussner last invest?

The most recent investment recorded for Heiner Sussner closed in Jun 2013. Shizune tracks 8 investments in total for this profile, including round sizes, stages and portfolio companies, all sourced from confirmed public funding rounds and refreshed monthly.

### Is Shizune's investor data accurate?

Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Aug 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.

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