Full-Service Support to Scale Faster

Legal advisory, business development, and business advisory and capitalization services for innovative entrepreneurs and small businesses
Request a Consultation

Get Expert Guidance

Build a Strong Foundation

Focus on Your Passions

Without a Strong Plan, Good Ideas Go to Waste

Does your business have a go-to-market strategy?

Do you understand the legal risks your business faces?

Does your business need to secure capital?

Without clear direction and a smart plan, new businesses struggle to take off and established ones find it difficult to continue scaling.

We Believe Entrepreneurs are the Cornerstone of our Economy

You should not have to face so many obstacles in your effort to improve lives and communities. The entrepreneurial journey is not always easy, but it is worth pursuing.

Our Team Understands the Hard Work That Goes into Starting and Growing a Successful Business


More than 20 years of experience in business, law, entrepreneurship, business development, and science/engineering


Specialties in renewable energy, environmental infrastructure, agricultural technology, and sustainable manufacturing sectors


More than $30 million of equity and non-dilutive capital raised in the last four years

How We Help Entrepreneurs and Small Businesses

Legal Advisory

Business Development

Business Advisory and Capitalization

What Industry Innovators Say About Working With Us

“Jon Kallen provided essential and critical guidance to funding programs that allowed our fledgling start-up business to take flight.  We were blown away by Jon’s extensive network of contacts, knowledge of different funding programs available, and kindness – he is a pillar of energy and can-do attitude that was a breath of fresh air.  My husband and I consider ourselves to be extremely lucky to have worked with Jon as our consultant (superhero is an accurate description) – and honored to consider him a dear friend.  We look forward to working with Jon in the years to come as our company continues to grow, knowing we will be in very good hands.” 


Megan Aronson
Co-Owner/V.P. Sales, Aronson Woodworks


Let’s Grow Your Business

  1. Request a consultation

  2. Discuss your business

  3. See your goals come to life

Stop Operating Without
a Clear Direction and
Build a Foundation for Growth

You want to become a driver of disruption.

You have the idea, and the right path forward could introduce the capital and resources you need to scale rapidly.

But without experience getting a company off the ground, it is easy to feel overwhelmed by hectic schedules and the unknown of the future.

At Jennings Kallen Advisors, we believe you should not have to face so many obstacles to turn your innovative idea into disruptive change that improves lives and communities.

The entrepreneurial journey is not easy, but your idea is worth fighting for.

We understand the hard work that goes into not only starting, but growing, a successful business. With 20 years of experience in entrepreneurship, engineering, and law, we leverage our diverse skillset to provide full-service consulting and guidance to innovative entrepreneurs and small businesses.

From early-stage to established organizations, we determine and execute strategies to secure the capital and resources to turn ideas into game-changing products and services.

Headquartered in
Des Moines, Iowa

666 Walnut Street, 23rd floor
Des Moines,Iowa 50309

Reach us by phone at