About Rockfield
The new standard in business sales.
Rigorous representation, uncompromised integrity, and proven results for New Zealand's business owners.
How we came about
Rockfield Business Brokerage was established with a singular focus: to elevate the standard of business sales in New Zealand. After decades at the helm of the industry's largest corporate brokerages, founders Aaron Toresen and Martin Plom recognised a critical gap in the market. Business owners navigating the most consequential transactions of their lives didn't just need a listing agency; they needed true advisory, uncompromising discretion, and a highly strategic approach to the market.
Rockfield was created to serve the nuanced needs of privately held businesses, it is built on the belief that a successful exit is orchestrated, not left to chance. We deliberately stepped away from volume-based, transactional models to create a bespoke firm where high-value expertise and meticulous preparation drive every outcome.
The founders
Aaron Toresen — Founder & Director
With over 25 years of experience in business brokerage and M&A, Aaron brings a top-tier executive perspective to every engagement. As the former Founder and Managing Director of a major international business brokerage network, he understands the mechanics of the market at the highest operational level. Aaron's expertise lies in structuring complex deals and ensuring that business owners receive representation that is strategic, defensible, and sharply focused on protecting their legacy.
Martin Plom — Founder & Director
Martin pairs elite corporate acumen with genuine entrepreneurial experience. As a qualified Chartered Accountant, his career spans senior leadership roles, including General Manager at Fonterra Ingredients NZ and President of Fletcher Forests USA. Crucially, Martin has stood in the shoes of the business owner — having bought, integrated, and successfully sold his own manufacturing business for a significant premium. Now one of New Zealand's most heavily decorated brokers — including being named REINZ Business Broker Salesperson of the Year — Martin specialises in high-value enterprise sales, bringing analytical precision and a no-nonsense approach to the negotiating table.
Why Rockfield is different
We don't just sell businesses; we maximise their value.
Defensible appraisals & valuations
Rigorous, evidence-based assessments — from straightforward market appraisals to comprehensive AES-2 Standard Valuations trusted by banks, courts, the IRD, and accountants. We deal in reality, giving you a structural baseline you can rely on.
Strategic preparation
If a business isn't ready to achieve its premium market potential, we don't push for a premature listing. We regularly work alongside owners — often for years prior to a sale — developing bespoke action plans to build value, strengthen operations, and ensure the business is perfectly positioned before ever approaching a buyer.
Unmatched reach & discretion
Confidentiality protects your leverage. Every document, conversation, and buyer introduction is tightly controlled and meticulously vetted, ensuring your business's sensitive information remains secure while still reaching the right qualified buyers across New Zealand and internationally.
Our brokers
Experience is not optional. It is the entire job.
Most New Zealand business brokerages are built on volume. They recruit widely, train quickly, and put newly licensed agents in front of owners whose life's work is on the line. The result is predictable: undervalued businesses, mishandled negotiations, and sales that quietly fall over in due diligence.
Rockfield is built the opposite way. We only engage brokers with a genuine track record — operators who have sat in the owner's chair, run companies, structured complex transactions, or led teams through real M&A. Every person who represents a Rockfield client has the commercial scar tissue to anticipate problems before they surface and the credibility to hold the line in negotiation.
This is a deliberate constraint on how fast we grow. We would rather decline a mandate than hand it to someone still learning the craft.
Senior representation, every engagement
The person who meets you is the person who runs your sale. No handovers to a junior the moment ink is dry.
Buyer-side credibility
Sophisticated buyers and their advisors take our calls seriously because they know who is on the other end.
Judgement, not scripts
Experienced brokers read a room, structure around obstacles, and protect deal value when conditions shift — things no playbook can teach.
Our dedication to integrity & results
At Rockfield, we are happy to be measured strictly by our results. We know that exiting a business is a defining financial and personal milestone, which is why we strip away the industry jargon to provide fair, frank, and objective advice.
Our loyalty is entirely to the business owner. We champion your interests with the highest level of professional integrity, ensuring that every negotiation is handled flawlessly to deliver a stress-free process and the maximum possible return for your life's work.