To expand upon what Tom and Paul reported, there are flours that are organic but can contain malt or enrichments such as iron and vitamins. Here are some examples in the U.S.:
Arrowhead Mills (Enriched Unbleached White Flour):
http://www.arrowheadmills.com/cpt_products/organic-all-purpose-flour/ (organic and enriched but not malted)
Central Milling (Organic Artisan Bakers Craft Plus):
https://centralmilling.com/product/organic-artisan-bakers-craft-plus/ (organic and malted but not enriched)
Central Milling (Organic Beehive):
https://centralmilling.com/product/organic-beehive/ (organic and malted but not enriched))
Central Milling (Organic Type 70 Malted):
https://centralmilling.com/product/organic-type-70-malted/ (organic and malted but not enriched)
Central Milling (Organic Type 85 Malted):
https://centralmilling.com/product/organic-type-85-malted/ (organic and malted but not enriched)
Central Milling (Organic Unbleached Enriched):
https://centralmilling.com/product/organic-unbleached-enriched/ (organic and enriched, but not malted)
Central Milling (Organic “The One”):
https://centralmilling.com/product/organic-the-one/ (organic and malted but not enriched) (Note: this flour contains salt)
General Mills/Sperry:
http://www.generalmills.com/en/Brands/Baking/gold-medal/brand-product-list (click on Organic Flours) (organic and enriched but not malted)
King Arthur (All Purpose):
https://www.kingarthurflour.com/shop-img/labels/1531943132818.pdf (organic and malted but not enriched)
King Arthur (Bread Flour):
http://www.kingarthurflour.com/shop-img/labels/1443555917555.pdf (organic and malted but not enriched)
King Arthur (High-Gluten Flour):
http://www.kingarthurflour.com/shop-img/labels/1443555768810.pdf (organic and malted but not enriched.
In the above examples where the organic flours are malted, the malt is a diastatic cereal malt in the form of barley flour and the barley flour is also organic.
All of the above flours are available at either supermarkets or by mail order.
One of the problems that arises with untreated organic flours is that the finished crusts can be lacking in color. One of our members, AnnieK, a pizza operator, had that problem but solved it by adding a low diastatic malt. My recollection is that she used a 20L product from Briess.
For those who are interested, I have added below the sources that I am aware of that sell organic flours that, as best I can tell, are untreated (no malt and no enrichment). For those sources that do not say whether their flours are untreated, I noted the uncertainty parenthetically. However, I suspect that most such flours are untreated, because of the emphasis at the related websites of the organic nature of their flours. Some of the flours are available at retail or by mail order but other ones of the flours are available only at the foodservice level. The source of the following information, as well as the above information, is the thread at
https://www.pizzamaking.com/forum/index.php?topic=40212.0.
Bob's Red Mill (Unbleached White All Purpose Flour):
http://www.bobsredmill.com/shop/flours-and-meals/organic-all-purpose-unbleached-white-flour.htmlCentral Milling (Organic Artisan Bakers Craft):
https://centralmilling.com/product/organic-artisan-bakers-craft/Central Milling (Organic High Mountain):
https://centralmilling.com/product/organic-high-mountain/Central Milling (Organic Type 110):
https://centralmilling.com/product/organic-type-110/Central Milling (Organic Type 85):
https://centralmilling.com/product/organic-type-85/Cook Natural Products (Organic All Spring Flour):
http://cooknaturally.com/support/specs/orgallspring.pdfCook Natural Products (Organic All Winter Flour):
http://cooknaturally.com/support/specs/allwinter.pdfCook Natural Products (Organic White Patent Flour (Snowbird)):
http://cooknaturally.com/support/specs/orgwhitefloursnow.pdfGeneral Mills/Sperry (Organic Hygluten Flour):
http://www.generalmillscf.com/products/category/flour/sperry/organic-hygluten-untreated-50lbGeneral Mills/Sperry (Organic Bread Flour):
http://www.generalmillscf.com/products/category/flour/sperry/organic-bread-untreated-50lbGiusto's (Ultimate Performer Unbleached Flour):
http://giustos.com/professional/flours/unbleached-white-flours/giustos-organic-ultimate-performer-unbleached-flour.htmlGreat River Milling (Bread Flours):
http://www.greatrivermilling.com/organic-bread-flours/ (uncertain)
Great River Milling (Commercial Product Sizes):
http://www.greatrivermilling.com/commercial-products/ (uncertain)
Hodgson Mill (All Purpose White Flour):
http://www.hodgsonmillstore.com/en/organic-all-natural-flour/organic-all-purpose-white-flour-71518-05108-001_groupMsGeary Organics (All-Purpose Flour):
http://www.daisyflour.com/all-purpose-flour/ (uncertain)
Montana Flour & Grain (Organic Hard White Wheat Flour):
http://www.montanaflour.com/100-organic-hard-white-wheat-flour/ (uncertain)
Montana Flour & Grain (Unbleached White Flour):
http://www.montanaflour.com/100-organic-unbleached-white-flour/Wheat Montana (Natural White Flour):
http://www.wheatmontana.com/retail/flourpancake-mixes/natural-white/natural-white-flour-1All of the organic malts cited above are also unbleached and unbromated and contain no other common additives such as ascorbic acid (Vitamin C).
Peter